diff --git a/apct-tests/perftests/core/src/android/libcore/AdditionPerfTest.java b/apct-tests/perftests/core/src/android/libcore/AdditionPerfTest.java
index 80cd86c..237c747 100644
--- a/apct-tests/perftests/core/src/android/libcore/AdditionPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/AdditionPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -34,11 +34,11 @@
 public class AdditionPerfTest {
 
     @Rule
-    public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeAddConstantToLocalInt() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         int result = 0;
         while (state.keepRunning()) {
             result += 123;
@@ -46,7 +46,7 @@
     }
     @Test
     public void timeAddTwoLocalInts() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         int result = 0;
         int constant = 123;
         while (state.keepRunning()) {
@@ -55,7 +55,7 @@
     }
     @Test
     public void timeAddConstantToLocalLong() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         long result = 0;
         while (state.keepRunning()) {
             result += 123L;
@@ -63,7 +63,7 @@
     }
     @Test
     public void timeAddTwoLocalLongs() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         long result = 0;
         long constant = 123L;
         while (state.keepRunning()) {
@@ -72,7 +72,7 @@
     }
     @Test
     public void timeAddConstantToLocalFloat() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         float result = 0.0f;
         while (state.keepRunning()) {
             result += 123.0f;
@@ -80,7 +80,7 @@
     }
     @Test
     public void timeAddTwoLocalFloats() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         float result = 0.0f;
         float constant = 123.0f;
         while (state.keepRunning()) {
@@ -89,7 +89,7 @@
     }
     @Test
     public void timeAddConstantToLocalDouble() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         double result = 0.0;
         while (state.keepRunning()) {
             result += 123.0;
@@ -97,7 +97,7 @@
     }
     @Test
     public void timeAddTwoLocalDoubles() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         double result = 0.0;
         double constant = 123.0;
         while (state.keepRunning()) {
diff --git a/apct-tests/perftests/core/src/android/libcore/ArrayCopyPerfTest.java b/apct-tests/perftests/core/src/android/libcore/ArrayCopyPerfTest.java
index 2f6c378..1222bc2 100644
--- a/apct-tests/perftests/core/src/android/libcore/ArrayCopyPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/ArrayCopyPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -33,11 +33,11 @@
 public class ArrayCopyPerfTest {
 
     @Rule
-    public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeManualArrayCopy() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         char[] src = new char[8192];
         while (state.keepRunning()) {
             char[] dst = new char[8192];
@@ -49,7 +49,7 @@
 
     @Test
     public void time_System_arrayCopy() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         char[] src = new char[8192];
         while (state.keepRunning()) {
             char[] dst = new char[8192];
@@ -59,7 +59,7 @@
 
     @Test
     public void time_Arrays_copyOf() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         char[] src = new char[8192];
         while (state.keepRunning()) {
             char[] dst = Arrays.copyOf(src, 8192);
@@ -68,7 +68,7 @@
 
     @Test
     public void time_Arrays_copyOfRange() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         char[] src = new char[8192];
         while (state.keepRunning()) {
             char[] dst = Arrays.copyOfRange(src, 0, 8192);
diff --git a/apct-tests/perftests/core/src/android/libcore/ArrayIterationPerfTest.java b/apct-tests/perftests/core/src/android/libcore/ArrayIterationPerfTest.java
index d17add7..3f95e3e 100644
--- a/apct-tests/perftests/core/src/android/libcore/ArrayIterationPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/ArrayIterationPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -38,7 +38,7 @@
     }
 
     @Rule
-    public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     Foo[] mArray = new Foo[27];
     {
@@ -46,7 +46,7 @@
     }
     @Test
     public void timeArrayIteration() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             int sum = 0;
             for (int i = 0; i < mArray.length; i++) {
@@ -56,7 +56,7 @@
     }
     @Test
     public void timeArrayIterationCached() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             int sum = 0;
             Foo[] localArray = mArray;
@@ -69,7 +69,7 @@
     }
     @Test
     public void timeArrayIterationForEach() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             int sum = 0;
             for (Foo a: mArray) {
diff --git a/apct-tests/perftests/core/src/android/libcore/ArrayListIterationPerfTest.java b/apct-tests/perftests/core/src/android/libcore/ArrayListIterationPerfTest.java
index 3a57db8..1423a13 100644
--- a/apct-tests/perftests/core/src/android/libcore/ArrayListIterationPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/ArrayListIterationPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -39,7 +39,7 @@
         int mSplat;
     }
     @Rule
-    public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     ArrayList<Foo> mList = new ArrayList<Foo>();
     {
@@ -47,7 +47,7 @@
     }
     @Test
     public void timeArrayListIterationIndexed() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             int sum = 0;
             ArrayList<Foo> list = mList;
@@ -59,7 +59,7 @@
     }
     @Test
     public void timeArrayListIterationForEach() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             int sum = 0;
             for (Foo a : mList) {
diff --git a/apct-tests/perftests/core/src/android/libcore/BigIntegerPerfTest.java b/apct-tests/perftests/core/src/android/libcore/BigIntegerPerfTest.java
index 3fb3bc8..0283105 100644
--- a/apct-tests/perftests/core/src/android/libcore/BigIntegerPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/BigIntegerPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -38,7 +38,8 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class BigIntegerPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     // A simple sum of products computation, mostly so we can check timing in the
     // absence of any division. Computes the sum from 1 to n of ((10^prec) << 30) + 1)^2,
@@ -61,7 +62,7 @@
     // Execute the above rep times, optionally timing it.
     @Test
     public void repeatInner() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 10; i <= 10_000; i *= 10) {
                 inner(100, i);
@@ -85,7 +86,7 @@
     // Check results for equality, and print one, to compaare against reference.
     @Test
     public void repeatHarmonic1000() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 5; i <= 5_000; i *= 10) {
                 BigInteger refRes = harmonic1000(i);
@@ -106,7 +107,7 @@
     // us to time and check it for consistency as well.
     @Test
     public void repeatToString() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 5; i <= 5_000; i *= 10) {
                 BigInteger refRes = harmonic1000(i);
@@ -146,7 +147,7 @@
     // to compare to reference.
     @Test
     public void repeatEApprox() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 10; i <= 10_000; i *= 10) {
                 BigInteger refRes = eApprox(100_000, i);
@@ -165,7 +166,7 @@
     // Test / time modPow()
     @Test
     public void repeatModPow() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 5; i <= 500; i *= 10) {
                 BigInteger odd1 = BigInteger.TEN.pow(i / 2).add(BigInteger.ONE);
@@ -198,7 +199,7 @@
     // Test / time modInverse()
     @Test
     public void repeatModInverse() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 10; i <= 10_000; i *= 10) {
                 BigInteger odd1 = BigInteger.TEN.pow(i / 2).add(BigInteger.ONE);
diff --git a/apct-tests/perftests/core/src/android/libcore/BufferedZipFilePerfTest.java b/apct-tests/perftests/core/src/android/libcore/BufferedZipFilePerfTest.java
index 2a1b5d1..11ca73a 100644
--- a/apct-tests/perftests/core/src/android/libcore/BufferedZipFilePerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/BufferedZipFilePerfTest.java
@@ -16,8 +16,9 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
+
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -39,7 +40,8 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public final class BufferedZipFilePerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     int[] mReadSize = new int[] {4, 32, 128};
     int[] mCompressedSize = new int[] {128, 1024, 8192, 65536};
@@ -67,7 +69,7 @@
 
     @Test
     public void timeUnbufferedRead() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < mCompressedSize.length; i++) {
                 for (int j = 0; j < mReadSize.length; j++) {
@@ -87,7 +89,7 @@
 
     @Test
     public void timeBufferedRead() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < mCompressedSize.length; i++) {
                 for (int j = 0; j < mReadSize.length; j++) {
diff --git a/apct-tests/perftests/core/src/android/libcore/ClassLoaderResourcePerfTest.java b/apct-tests/perftests/core/src/android/libcore/ClassLoaderResourcePerfTest.java
index 5f599ea..0abe194 100644
--- a/apct-tests/perftests/core/src/android/libcore/ClassLoaderResourcePerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/ClassLoaderResourcePerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -30,7 +30,8 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class ClassLoaderResourcePerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private static final String EXISTENT_RESOURCE = "java/util/logging/logging.properties";
     private static final String MISSING_RESOURCE = "missing_entry";
@@ -40,7 +41,7 @@
         ClassLoader currentClassLoader = getClass().getClassLoader();
         Assert.assertNotNull(currentClassLoader.getResource(EXISTENT_RESOURCE));
 
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             currentClassLoader.getResource(EXISTENT_RESOURCE);
         }
@@ -51,7 +52,7 @@
         ClassLoader currentClassLoader = getClass().getClassLoader();
         Assert.assertNull(currentClassLoader.getResource(MISSING_RESOURCE));
 
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             currentClassLoader.getResource(MISSING_RESOURCE);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/ClonePerfTest.java b/apct-tests/perftests/core/src/android/libcore/ClonePerfTest.java
index ea24984..52441d1 100644
--- a/apct-tests/perftests/core/src/android/libcore/ClonePerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/ClonePerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -29,7 +29,8 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class ClonePerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     static class CloneableObject implements Cloneable {
         public Object clone() throws CloneNotSupportedException {
@@ -1127,7 +1128,7 @@
     public void time_Object_clone() {
         try {
             CloneableObject o = new CloneableObject();
-            BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+            final BenchmarkState state = mBenchmarkRule.getState();
             while (state.keepRunning()) {
                 o.clone();
             }
@@ -1140,7 +1141,7 @@
     public void time_Object_manyFieldClone() {
         try {
             CloneableManyFieldObject o = new CloneableManyFieldObject();
-            BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+            final BenchmarkState state = mBenchmarkRule.getState();
             while (state.keepRunning()) {
                 o.clone();
             }
@@ -1153,7 +1154,7 @@
     public void time_Object_deepClone() {
         try {
             DeepCloneable o = new DeepCloneable();
-            BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+            final BenchmarkState state = mBenchmarkRule.getState();
             while (state.keepRunning()) {
                 o.clone();
             }
@@ -1165,7 +1166,7 @@
     @Test
     public void time_Array_clone() {
         int[] o = new int[32];
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             o.clone();
         }
@@ -1177,7 +1178,7 @@
         for (int i = 0; i < o.length / 2; ++i) {
             o[i] = new Object();
         }
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             o.clone();
         }
@@ -1189,7 +1190,7 @@
         for (int i = 0; i < o.length / 2; ++i) {
             o[i] = new Object();
         }
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             o.clone();
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/DeepArrayOpsPerfTest.java b/apct-tests/perftests/core/src/android/libcore/DeepArrayOpsPerfTest.java
index 82247dc..e6c5aca 100644
--- a/apct-tests/perftests/core/src/android/libcore/DeepArrayOpsPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/DeepArrayOpsPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -36,7 +36,8 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class DeepArrayOpsPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private Object[] mArray;
     private Object[] mArray2;
@@ -99,7 +100,7 @@
     @Parameters(method = "getData")
     public void deepHashCode(int arrayLength) throws Exception {
         setUp(arrayLength);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Arrays.deepHashCode(mArray);
         }
@@ -109,7 +110,7 @@
     @Parameters(method = "getData")
     public void deepEquals(int arrayLength) throws Exception {
         setUp(arrayLength);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Arrays.deepEquals(mArray, mArray2);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/FieldAccessPerfTest.java b/apct-tests/perftests/core/src/android/libcore/FieldAccessPerfTest.java
index 0bebf04..378137b 100644
--- a/apct-tests/perftests/core/src/android/libcore/FieldAccessPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/FieldAccessPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -30,7 +30,8 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class FieldAccessPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private static class Inner {
         public int mPublicInnerIntVal;
@@ -47,7 +48,7 @@
     @Test
     public void timeField() {
         int result = 0;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = mIntVal;
         }
@@ -56,7 +57,7 @@
     @Test
     public void timeFieldFinal() {
         int result = 0;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = mFinalIntVal;
         }
@@ -65,7 +66,7 @@
     @Test
     public void timeFieldStatic() {
         int result = 0;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = sStaticIntVal;
         }
@@ -74,7 +75,7 @@
     @Test
     public void timeFieldStaticFinal() {
         int result = 0;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = FINAL_INT_VAL;
         }
@@ -84,7 +85,7 @@
     public void timeFieldCached() {
         int result = 0;
         int cachedIntVal = this.mIntVal;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = cachedIntVal;
         }
@@ -94,7 +95,7 @@
     public void timeFieldPrivateInnerClassPublicField() {
         int result = 0;
         Inner inner = new Inner();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = inner.mPublicInnerIntVal;
         }
@@ -104,7 +105,7 @@
     public void timeFieldPrivateInnerClassProtectedField() {
         int result = 0;
         Inner inner = new Inner();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = inner.mProtectedInnerIntVal;
         }
@@ -114,7 +115,7 @@
     public void timeFieldPrivateInnerClassPrivateField() {
         int result = 0;
         Inner inner = new Inner();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = inner.mPrivateInnerIntVal;
         }
@@ -124,7 +125,7 @@
     public void timeFieldPrivateInnerClassPackageField() {
         int result = 0;
         Inner inner = new Inner();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = inner.mPackageInnerIntVal;
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/HashedCollectionsPerfTest.java b/apct-tests/perftests/core/src/android/libcore/HashedCollectionsPerfTest.java
index 55c1027..610e8e5 100644
--- a/apct-tests/perftests/core/src/android/libcore/HashedCollectionsPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/HashedCollectionsPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -35,13 +35,14 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class HashedCollectionsPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeHashMapGet() {
         HashMap<String, String> map = new HashMap<String, String>();
         map.put("hello", "world");
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             map.get("hello");
         }
@@ -53,7 +54,7 @@
         synchronized (map) {
             map.put("hello", "world");
         }
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             synchronized (map) {
                 map.get("hello");
@@ -65,7 +66,7 @@
     public void timeHashtableGet() {
         Hashtable<String, String> map = new Hashtable<String, String>();
         map.put("hello", "world");
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             map.get("hello");
         }
@@ -75,7 +76,7 @@
     public void timeLinkedHashMapGet() {
         LinkedHashMap<String, String> map = new LinkedHashMap<String, String>();
         map.put("hello", "world");
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             map.get("hello");
         }
@@ -85,7 +86,7 @@
     public void timeConcurrentHashMapGet() {
         ConcurrentHashMap<String, String> map = new ConcurrentHashMap<String, String>();
         map.put("hello", "world");
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             map.get("hello");
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/ImtConflictPerfTest.java b/apct-tests/perftests/core/src/android/libcore/ImtConflictPerfTest.java
index da60a77..40c07e0 100644
--- a/apct-tests/perftests/core/src/android/libcore/ImtConflictPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/ImtConflictPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -41,7 +41,8 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class ImtConflictPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Before
     public void setup() {
@@ -280,7 +281,7 @@
     @Test
     public void timeConflictDepth01() {
         C0 c0 = new C0();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             callF0(c0);
             callF0(c0);
@@ -308,7 +309,7 @@
     @Test
     public void timeConflictDepth02() {
         C1 c1 = new C1();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             callF0(c1);
             callF19(c1);
@@ -336,7 +337,7 @@
     @Test
     public void timeConflictDepth03() {
         C2 c2 = new C2();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             callF0(c2);
             callF19(c2);
@@ -364,7 +365,7 @@
     @Test
     public void timeConflictDepth04() {
         C3 c3 = new C3();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             callF0(c3);
             callF19(c3);
@@ -392,7 +393,7 @@
     @Test
     public void timeConflictDepth05() {
         C4 c4 = new C4();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             callF0(c4);
             callF19(c4);
@@ -420,7 +421,7 @@
     @Test
     public void timeConflictDepth06() {
         C5 c5 = new C5();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             callF0(c5);
             callF19(c5);
@@ -448,7 +449,7 @@
     @Test
     public void timeConflictDepth07() {
         C6 c6 = new C6();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             callF0(c6);
             callF19(c6);
@@ -476,7 +477,7 @@
     @Test
     public void timeConflictDepth08() {
         C7 c7 = new C7();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             callF0(c7);
             callF19(c7);
@@ -504,7 +505,7 @@
     @Test
     public void timeConflictDepth09() {
         C8 c8 = new C8();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             callF0(c8);
             callF19(c8);
@@ -532,7 +533,7 @@
     @Test
     public void timeConflictDepth10() {
         C9 c9 = new C9();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             callF0(c9);
             callF19(c9);
@@ -560,7 +561,7 @@
     @Test
     public void timeConflictDepth11() {
         C10 c10 = new C10();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             callF0(c10);
             callF19(c10);
@@ -588,7 +589,7 @@
     @Test
     public void timeConflictDepth12() {
         C11 c11 = new C11();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             callF0(c11);
             callF19(c11);
@@ -616,7 +617,7 @@
     @Test
     public void timeConflictDepth13() {
         C12 c12 = new C12();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             callF0(c12);
             callF19(c12);
@@ -644,7 +645,7 @@
     @Test
     public void timeConflictDepth14() {
         C13 c13 = new C13();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             callF0(c13);
             callF19(c13);
@@ -672,7 +673,7 @@
     @Test
     public void timeConflictDepth15() {
         C14 c14 = new C14();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             callF0(c14);
             callF19(c14);
@@ -700,7 +701,7 @@
     @Test
     public void timeConflictDepth16() {
         C15 c15 = new C15();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             callF0(c15);
             callF19(c15);
@@ -728,7 +729,7 @@
     @Test
     public void timeConflictDepth17() {
         C16 c16 = new C16();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             callF0(c16);
             callF19(c16);
@@ -756,7 +757,7 @@
     @Test
     public void timeConflictDepth18() {
         C17 c17 = new C17();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             callF0(c17);
             callF19(c17);
@@ -784,7 +785,7 @@
     @Test
     public void timeConflictDepth19() {
         C18 c18 = new C18();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             callF0(c18);
             callF19(c18);
@@ -812,7 +813,7 @@
     @Test
     public void timeConflictDepth20() {
         C19 c19 = new C19();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             callF0(c19);
             callF19(c19);
diff --git a/apct-tests/perftests/core/src/android/libcore/MethodInvocationPerfTest.java b/apct-tests/perftests/core/src/android/libcore/MethodInvocationPerfTest.java
index 6d9d0c9..e1d0bf2 100644
--- a/apct-tests/perftests/core/src/android/libcore/MethodInvocationPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/MethodInvocationPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -30,7 +30,8 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class MethodInvocationPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     interface I {
         void emptyInterface();
@@ -65,12 +66,12 @@
     }
 
     public void timeInternalGetter() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         new C().timeInternalGetter(state);
     }
 
     public void timeInternalFieldAccess() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         new C().timeInternalFieldAccess(state);
     }
 
@@ -78,7 +79,7 @@
     @Test
     public void timeStringLength() {
         int result = 0;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = "hello, world!".length();
         }
@@ -87,7 +88,7 @@
     @Test
     public void timeEmptyStatic() {
         C c = new C();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             c.emptyStatic();
         }
@@ -96,7 +97,7 @@
     @Test
     public void timeEmptyVirtual() {
         C c = new C();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             c.emptyVirtual();
         }
@@ -105,7 +106,7 @@
     @Test
     public void timeEmptyInterface() {
         I c = new C();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             c.emptyInterface();
         }
@@ -138,7 +139,7 @@
     @Test
     public void timePrivateInnerPublicMethod() {
         Inner inner = new Inner();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             inner.publicMethod();
         }
@@ -147,7 +148,7 @@
     @Test
     public void timePrivateInnerProtectedMethod() {
         Inner inner = new Inner();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             inner.protectedMethod();
         }
@@ -156,7 +157,7 @@
     @Test
     public void timePrivateInnerPrivateMethod() {
         Inner inner = new Inner();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             inner.privateMethod();
         }
@@ -165,7 +166,7 @@
     @Test
     public void timePrivateInnerPackageMethod() {
         Inner inner = new Inner();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             inner.packageMethod();
         }
@@ -174,7 +175,7 @@
     @Test
     public void timePrivateInnerFinalPackageMethod() {
         Inner inner = new Inner();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             inner.finalPackageMethod();
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/MultiplicationPerfTest.java b/apct-tests/perftests/core/src/android/libcore/MultiplicationPerfTest.java
index 09b0977..c5e9d1e 100644
--- a/apct-tests/perftests/core/src/android/libcore/MultiplicationPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/MultiplicationPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -30,12 +30,13 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class MultiplicationPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeMultiplyIntByConstant10() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result *= 10;
         }
@@ -44,7 +45,7 @@
     @Test
     public void timeMultiplyIntByConstant8() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result *= 8;
         }
@@ -54,7 +55,7 @@
     public void timeMultiplyIntByVariable10() {
         int result = 1;
         int factor = 10;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result *= factor;
         }
@@ -64,7 +65,7 @@
     public void timeMultiplyIntByVariable8() {
         int result = 1;
         int factor = 8;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result *= factor;
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/ReferenceGetPerfTest.java b/apct-tests/perftests/core/src/android/libcore/ReferenceGetPerfTest.java
index ba21ed3..d073f91 100644
--- a/apct-tests/perftests/core/src/android/libcore/ReferenceGetPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/ReferenceGetPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -35,7 +35,8 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class ReferenceGetPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     boolean mIntrinsicDisabled;
 
@@ -51,7 +52,7 @@
     @Test
     public void timeSoftReferenceGet() throws Exception {
         Reference soft = new SoftReference(mObj);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Object o = soft.get();
         }
@@ -60,7 +61,7 @@
     @Test
     public void timeWeakReferenceGet() throws Exception {
         Reference weak = new WeakReference(mObj);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Object o = weak.get();
         }
@@ -71,7 +72,7 @@
         Reference weak = new WeakReference(mObj);
         mObj = null;
         Runtime.getRuntime().gc();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Object o = weak.get();
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/ReferencePerfTest.java b/apct-tests/perftests/core/src/android/libcore/ReferencePerfTest.java
index 293752e..af13773 100644
--- a/apct-tests/perftests/core/src/android/libcore/ReferencePerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/ReferencePerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -34,7 +34,8 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class ReferencePerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private Object mObject;
 
@@ -42,7 +43,7 @@
     @Test
     public void timeAlloc() {
         ReferenceQueue<Object> queue = new ReferenceQueue<Object>();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             new PhantomReference(mObject, queue);
         }
@@ -52,7 +53,7 @@
     @Test
     public void timeAllocAndEnqueue() {
         ReferenceQueue<Object> queue = new ReferenceQueue<Object>();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             (new PhantomReference<Object>(mObject, queue)).enqueue();
         }
@@ -62,7 +63,7 @@
     @Test
     public void timeAllocEnqueueAndPoll() {
         ReferenceQueue<Object> queue = new ReferenceQueue<Object>();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             (new PhantomReference<Object>(mObject, queue)).enqueue();
             queue.poll();
@@ -73,7 +74,7 @@
     @Test
     public void timeAllocEnqueueAndRemove() {
         ReferenceQueue<Object> queue = new ReferenceQueue<Object>();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             (new PhantomReference<Object>(mObject, queue)).enqueue();
             try {
@@ -102,7 +103,7 @@
         // Allocate a bunch of finalizable objects.
         int n = 0;
         AtomicInteger count = new AtomicInteger(0);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             n++;
             new FinalizableObject(count);
diff --git a/apct-tests/perftests/core/src/android/libcore/SmallBigIntegerPerfTest.java b/apct-tests/perftests/core/src/android/libcore/SmallBigIntegerPerfTest.java
index 528b751..cf573fa 100644
--- a/apct-tests/perftests/core/src/android/libcore/SmallBigIntegerPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/SmallBigIntegerPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -41,7 +41,9 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class SmallBigIntegerPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
+
     // We allocate about 2 1/3 BigIntegers per iteration.
     // Assuming 100 bytes/BigInteger, this gives us around 500MB total.
     static final BigInteger BIG_THREE = BigInteger.valueOf(3);
@@ -51,7 +53,7 @@
     public void testSmallBigInteger() {
         final Random r = new Random();
         BigInteger x = new BigInteger(20, r);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             // We know this converges, but the compiler doesn't.
             if (x.and(BigInteger.ONE).equals(BigInteger.ONE)) {
diff --git a/apct-tests/perftests/core/src/android/libcore/StringDexCachePerfTest.java b/apct-tests/perftests/core/src/android/libcore/StringDexCachePerfTest.java
index 1f301ac..d28154c 100644
--- a/apct-tests/perftests/core/src/android/libcore/StringDexCachePerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/StringDexCachePerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -30,13 +30,14 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class StringDexCachePerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeStringDexCacheAccess() {
         int v = 0;
         int count = 0;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             // Deliberately obscured to make optimizations less likely.
             String s = (count >= 0) ? "hello, world!" : null;
diff --git a/apct-tests/perftests/core/src/android/libcore/StringIterationPerfTest.java b/apct-tests/perftests/core/src/android/libcore/StringIterationPerfTest.java
index 4268325..40a8db0 100644
--- a/apct-tests/perftests/core/src/android/libcore/StringIterationPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/StringIterationPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -30,12 +30,13 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class StringIterationPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeStringIteration0() {
         String s = "hello, world!";
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             char ch;
             for (int i = 0; i < s.length(); ++i) {
@@ -47,7 +48,7 @@
     @Test
     public void timeStringIteration1() {
         String s = "hello, world!";
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             char ch;
             for (int i = 0, length = s.length(); i < length; ++i) {
@@ -59,7 +60,7 @@
     @Test
     public void timeStringIteration2() {
         String s = "hello, world!";
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             char ch;
             char[] chars = s.toCharArray();
@@ -72,7 +73,7 @@
     @Test
     public void timeStringToCharArray() {
         String s = "hello, world!";
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             char[] chars = s.toCharArray();
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/VirtualVersusInterfacePerfTest.java b/apct-tests/perftests/core/src/android/libcore/VirtualVersusInterfacePerfTest.java
index cb3d3ac..147ea50 100644
--- a/apct-tests/perftests/core/src/android/libcore/VirtualVersusInterfacePerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/VirtualVersusInterfacePerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -36,12 +36,13 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VirtualVersusInterfacePerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeMapPut() {
         Map<String, String> map = new HashMap<String, String>();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             map.put("hello", "world");
         }
@@ -50,7 +51,7 @@
     @Test
     public void timeHashMapPut() {
         HashMap<String, String> map = new HashMap<String, String>();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             map.put("hello", "world");
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/XmlSerializePerfTest.java b/apct-tests/perftests/core/src/android/libcore/XmlSerializePerfTest.java
index 5be8ee6..bb1c298 100644
--- a/apct-tests/perftests/core/src/android/libcore/XmlSerializePerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/XmlSerializePerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -36,7 +36,8 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class XmlSerializePerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private Object[] getParams() {
         return new Object[][] {
@@ -108,7 +109,7 @@
 
     private void internalTimeSerializer(Constructor<? extends XmlSerializer> ctor, int seed)
             throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             serializeRandomXml(ctor, seed);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/XmlSerializerPerfTest.java b/apct-tests/perftests/core/src/android/libcore/XmlSerializerPerfTest.java
index a37b89d..9360a25 100644
--- a/apct-tests/perftests/core/src/android/libcore/XmlSerializerPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/XmlSerializerPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 import android.util.Xml;
 
 import androidx.test.filters.LargeTest;
@@ -44,11 +44,11 @@
 public class XmlSerializerPerfTest {
 
     @Rule
-    public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeFastSerializer_nonIndent_depth100() throws IOException {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             XmlSerializer serializer = Xml.newFastSerializer();
             runTest(serializer, 100);
@@ -57,7 +57,7 @@
 
     @Test
     public void timeFastSerializer_indent_depth100() throws IOException {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             XmlSerializer serializer = Xml.newFastSerializer();
             serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true);
@@ -67,7 +67,7 @@
 
     @Test
     public void timeKXmlSerializer_nonIndent_depth100() throws IOException {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             XmlSerializer serializer = XmlObjectFactory.newXmlSerializer();
             runTest(serializer, 100);
@@ -76,7 +76,7 @@
 
     @Test
     public void timeKXmlSerializer_indent_depth100() throws IOException {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             XmlSerializer serializer = XmlObjectFactory.newXmlSerializer();
             serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true);
diff --git a/apct-tests/perftests/core/src/android/libcore/ZipFilePerfTest.java b/apct-tests/perftests/core/src/android/libcore/ZipFilePerfTest.java
index ed669be..03f183a 100644
--- a/apct-tests/perftests/core/src/android/libcore/ZipFilePerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/ZipFilePerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -42,7 +42,8 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class ZipFilePerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private File mFile;
 
@@ -65,7 +66,7 @@
     @Parameters(method = "getData")
     public void timeZipFileOpen(int numEntries) throws Exception {
         setUp(numEntries);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             ZipFile zf = new ZipFile(mFile);
             state.pauseTiming();
diff --git a/apct-tests/perftests/core/src/android/libcore/ZipFileReadPerfTest.java b/apct-tests/perftests/core/src/android/libcore/ZipFileReadPerfTest.java
index d239a05..3614061 100644
--- a/apct-tests/perftests/core/src/android/libcore/ZipFileReadPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/ZipFileReadPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -44,7 +44,8 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class ZipFileReadPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     public static Collection<Object[]> getData() {
         return Arrays.asList(new Object[][] {{1024}, {16384}, {65536}});
@@ -91,7 +92,7 @@
     @Parameters(method = "getData")
     public void timeZipFileRead(int readBufferSize) throws Exception {
         byte[] readBuffer = new byte[readBufferSize];
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             ZipFile zipFile = new ZipFile(mFile);
             for (Enumeration<? extends ZipEntry> e = zipFile.entries(); e.hasMoreElements(); ) {
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/AnnotatedElementPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/AnnotatedElementPerfTest.java
index 487295c..8890f51 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/AnnotatedElementPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/AnnotatedElementPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -35,7 +35,8 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class AnnotatedElementPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private Class<?> mType;
     private Field mField;
@@ -52,7 +53,7 @@
 
     @Test
     public void timeGetTypeAnnotations() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mType.getAnnotations();
         }
@@ -60,7 +61,7 @@
 
     @Test
     public void timeGetFieldAnnotations() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mField.getAnnotations();
         }
@@ -68,7 +69,7 @@
 
     @Test
     public void timeGetMethodAnnotations() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mMethod.getAnnotations();
         }
@@ -76,7 +77,7 @@
 
     @Test
     public void timeGetParameterAnnotations() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mMethod.getParameterAnnotations();
         }
@@ -84,7 +85,7 @@
 
     @Test
     public void timeGetTypeAnnotation() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mType.getAnnotation(Marker.class);
         }
@@ -92,7 +93,7 @@
 
     @Test
     public void timeGetFieldAnnotation() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mField.getAnnotation(Marker.class);
         }
@@ -100,7 +101,7 @@
 
     @Test
     public void timeGetMethodAnnotation() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mMethod.getAnnotation(Marker.class);
         }
@@ -108,7 +109,7 @@
 
     @Test
     public void timeIsTypeAnnotationPresent() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mType.isAnnotationPresent(Marker.class);
         }
@@ -116,7 +117,7 @@
 
     @Test
     public void timeIsFieldAnnotationPresent() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mField.isAnnotationPresent(Marker.class);
         }
@@ -124,7 +125,7 @@
 
     @Test
     public void timeIsMethodAnnotationPresent() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mMethod.isAnnotationPresent(Marker.class);
         }
@@ -134,7 +135,7 @@
 
     @Test
     public void timeGetAllReturnsLargeAnnotation() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             HasLargeAnnotation.class.getAnnotations();
         }
@@ -142,7 +143,7 @@
 
     @Test
     public void timeGetAllReturnsSmallAnnotation() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             HasSmallAnnotation.class.getAnnotations();
         }
@@ -150,7 +151,7 @@
 
     @Test
     public void timeGetAllReturnsMarkerAnnotation() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             HasMarkerAnnotation.class.getAnnotations();
         }
@@ -158,7 +159,7 @@
 
     @Test
     public void timeGetAllReturnsNoAnnotation() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             HasNoAnnotations.class.getAnnotations();
         }
@@ -166,7 +167,7 @@
 
     @Test
     public void timeGetAllReturnsThreeAnnotations() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             HasThreeAnnotations.class.getAnnotations();
         }
@@ -176,7 +177,7 @@
 
     @Test
     public void timeGetAnnotationsOnSubclass() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             ExtendsHasThreeAnnotations.class.getAnnotations();
         }
@@ -184,7 +185,7 @@
 
     @Test
     public void timeGetDeclaredAnnotationsOnSubclass() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             ExtendsHasThreeAnnotations.class.getDeclaredAnnotations();
         }
@@ -194,7 +195,7 @@
 
     @Test
     public void timeGetDeclaredClasses() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             AnnotatedElementPerfTest.class.getDeclaredClasses();
         }
@@ -202,7 +203,7 @@
 
     @Test
     public void timeGetDeclaringClass() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             HasSmallAnnotation.class.getDeclaringClass();
         }
@@ -211,7 +212,7 @@
     @Test
     public void timeGetEnclosingClass() {
         Object anonymousClass = new Object() {};
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             anonymousClass.getClass().getEnclosingClass();
         }
@@ -220,7 +221,7 @@
     @Test
     public void timeGetEnclosingConstructor() {
         Object anonymousClass = new Object() {};
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             anonymousClass.getClass().getEnclosingConstructor();
         }
@@ -229,7 +230,7 @@
     @Test
     public void timeGetEnclosingMethod() {
         Object anonymousClass = new Object() {};
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             anonymousClass.getClass().getEnclosingMethod();
         }
@@ -237,7 +238,7 @@
 
     @Test
     public void timeGetModifiers() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             HasSmallAnnotation.class.getModifiers();
         }
@@ -245,7 +246,7 @@
 
     @Test
     public void timeGetSimpleName() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             HasSmallAnnotation.class.getSimpleName();
         }
@@ -254,7 +255,7 @@
     @Test
     public void timeIsAnonymousClass() {
         Object anonymousClass = new Object() {};
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             anonymousClass.getClass().isAnonymousClass();
         }
@@ -262,7 +263,7 @@
 
     @Test
     public void timeIsLocalClass() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             HasSmallAnnotation.class.isLocalClass();
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/BidiPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/BidiPerfTest.java
index adc5d8c..baab860 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/BidiPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/BidiPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -34,14 +34,14 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class BidiPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private static final AttributedCharacterIterator CHAR_ITER =
             DecimalFormat.getInstance().formatToCharacterIterator(new BigDecimal(Math.PI));
 
     @Test
     public void time_createBidiFromIter() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Bidi bidi = new Bidi(CHAR_ITER);
         }
@@ -49,7 +49,7 @@
 
     @Test
     public void time_createBidiFromCharArray() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Bidi bd =
                     new Bidi(
@@ -64,7 +64,7 @@
 
     @Test
     public void time_createBidiFromString() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Bidi bidi = new Bidi("Hello", Bidi.DIRECTION_LEFT_TO_RIGHT);
         }
@@ -72,7 +72,7 @@
 
     @Test
     public void time_reorderVisually() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Bidi.reorderVisually(
                     new byte[] {2, 1, 3, 0, 4}, 0, new String[] {"H", "e", "l", "l", "o"}, 0, 5);
@@ -81,7 +81,7 @@
 
     @Test
     public void time_hebrewBidi() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Bidi bd =
                     new Bidi(
@@ -104,7 +104,7 @@
 
     @Test
     public void time_complicatedOverrideBidi() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Bidi bd =
                     new Bidi(
@@ -119,7 +119,7 @@
 
     @Test
     public void time_requiresBidi() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Bidi.requiresBidi("\u05D0".toCharArray(), 1, 1); // false.
             Bidi.requiresBidi("\u05D0".toCharArray(), 0, 1); // true.
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/BigIntegerPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/BigIntegerPerfTest.java
index 286d703..8a539f8 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/BigIntegerPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/BigIntegerPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -32,14 +32,14 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class BigIntegerPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeRandomDivision() throws Exception {
         Random r = new Random();
         BigInteger x = new BigInteger(1024, r);
         BigInteger y = new BigInteger(1024, r);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x.divide(y);
         }
@@ -50,7 +50,7 @@
         Random r = new Random();
         BigInteger x = new BigInteger(1024, r);
         BigInteger y = new BigInteger(1024, r);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x.gcd(y);
         }
@@ -61,7 +61,7 @@
         Random r = new Random();
         BigInteger x = new BigInteger(1024, r);
         BigInteger y = new BigInteger(1024, r);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x.multiply(y);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/BitSetPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/BitSetPerfTest.java
index d646202..1b46ff4 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/BitSetPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/BitSetPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -35,7 +35,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class BitSetPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     public static Collection<Object[]> getData() {
         return Arrays.asList(new Object[][] {{1000}, {10000}});
@@ -45,7 +45,7 @@
     @Parameters(method = "getData")
     public void timeIsEmptyTrue(int size) {
         BitSet bitSet = new BitSet(size);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             if (!bitSet.isEmpty()) throw new RuntimeException();
         }
@@ -56,7 +56,7 @@
     public void timeIsEmptyFalse(int size) {
         BitSet bitSet = new BitSet(size);
         bitSet.set(bitSet.size() - 1);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             if (bitSet.isEmpty()) throw new RuntimeException();
         }
@@ -66,7 +66,7 @@
     @Parameters(method = "getData")
     public void timeGet(int size) {
         BitSet bitSet = new BitSet(size);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         int i = 1;
         while (state.keepRunning()) {
             bitSet.get(++i % size);
@@ -77,7 +77,7 @@
     @Parameters(method = "getData")
     public void timeClear(int size) {
         BitSet bitSet = new BitSet(size);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         int i = 1;
         while (state.keepRunning()) {
             bitSet.clear(++i % size);
@@ -89,7 +89,7 @@
     public void timeSet(int size) {
         BitSet bitSet = new BitSet(size);
         int i = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             bitSet.set(++i % size);
         }
@@ -100,7 +100,7 @@
     public void timeSetOn(int size) {
         BitSet bitSet = new BitSet(size);
         int i = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             bitSet.set(++i % size, true);
         }
@@ -111,7 +111,7 @@
     public void timeSetOff(int size) {
         BitSet bitSet = new BitSet(size);
         int i = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             bitSet.set(++i % size, false);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/BreakIteratorPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/BreakIteratorPerfTest.java
index b887f40..3c5e4fd 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/BreakIteratorPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/BreakIteratorPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -36,7 +36,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public final class BreakIteratorPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     public enum Text {
         LIPSUM(
@@ -165,7 +165,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeBreakIterator(Text text) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             BreakIterator it = BreakIterator.getLineInstance(text.mLocale);
             it.setText(text.mText);
@@ -179,7 +179,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeIcuBreakIterator(Text text) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             android.icu.text.BreakIterator it =
                     android.icu.text.BreakIterator.getLineInstance(text.mLocale);
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/BulkPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/BulkPerfTest.java
index e4eaf12..6df67bc 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/BulkPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/BulkPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -39,7 +39,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class BulkPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     public static Collection<Object[]> getData() {
         return Arrays.asList(
@@ -120,7 +120,7 @@
             throws Exception {
         ByteBuffer src = BulkPerfTest.newBuffer(align, sBuf, size);
         ByteBuffer data = BulkPerfTest.newBuffer(align, dBuf, size);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             src.position(align ? 0 : 1);
             data.position(align ? 0 : 1);
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/ByteBufferPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/ByteBufferPerfTest.java
index 42e3910a..f01ac02 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/ByteBufferPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/ByteBufferPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -46,7 +46,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class ByteBufferPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     public enum MyByteOrder {
         BIG(ByteOrder.BIG_ENDIAN),
@@ -121,7 +121,7 @@
     public void timeByteBuffer_getByte(
             MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws Exception {
         ByteBuffer src = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             src.position(aligned ? 0 : 1);
             for (int i = 0; i < 1024; ++i) {
@@ -136,7 +136,7 @@
             MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws Exception {
         ByteBuffer src = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType);
         byte[] dst = new byte[1024];
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < 1024; ++i) {
                 src.position(aligned ? 0 : 1);
@@ -150,7 +150,7 @@
     public void timeByteBuffer_getByte_indexed(
             MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws Exception {
         ByteBuffer src = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             src.position(aligned ? 0 : 1);
             for (int i = 0; i < 1024; ++i) {
@@ -164,7 +164,7 @@
     public void timeByteBuffer_getChar(
             MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws Exception {
         ByteBuffer src = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             src.position(aligned ? 0 : 1);
             for (int i = 0; i < 1024; ++i) {
@@ -180,7 +180,7 @@
         CharBuffer src =
                 ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType).asCharBuffer();
         char[] dst = new char[1024];
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < 1024; ++i) {
                 src.position(0);
@@ -194,7 +194,7 @@
     public void timeByteBuffer_getChar_indexed(
             MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws Exception {
         ByteBuffer src = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             src.position(aligned ? 0 : 1);
             for (int i = 0; i < 1024; ++i) {
@@ -208,7 +208,7 @@
     public void timeByteBuffer_getDouble(
             MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws Exception {
         ByteBuffer src = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             src.position(aligned ? 0 : 1);
             for (int i = 0; i < 1024; ++i) {
@@ -224,7 +224,7 @@
         DoubleBuffer src =
                 ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType).asDoubleBuffer();
         double[] dst = new double[1024];
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < 1024; ++i) {
                 src.position(0);
@@ -238,7 +238,7 @@
     public void timeByteBuffer_getFloat(
             MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws Exception {
         ByteBuffer src = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             src.position(aligned ? 0 : 1);
             for (int i = 0; i < 1024; ++i) {
@@ -254,7 +254,7 @@
         FloatBuffer src =
                 ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType).asFloatBuffer();
         float[] dst = new float[1024];
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < 1024; ++i) {
                 src.position(0);
@@ -268,7 +268,7 @@
     public void timeByteBuffer_getInt(
             MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws Exception {
         ByteBuffer src = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             src.position(aligned ? 0 : 1);
             for (int i = 0; i < 1024; ++i) {
@@ -283,7 +283,7 @@
             MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws Exception {
         IntBuffer src = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType).asIntBuffer();
         int[] dst = new int[1024];
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < 1024; ++i) {
                 src.position(0);
@@ -297,7 +297,7 @@
     public void timeByteBuffer_getLong(
             MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws Exception {
         ByteBuffer src = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             src.position(aligned ? 0 : 1);
             for (int i = 0; i < 1024; ++i) {
@@ -313,7 +313,7 @@
         LongBuffer src =
                 ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType).asLongBuffer();
         long[] dst = new long[1024];
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < 1024; ++i) {
                 src.position(0);
@@ -327,7 +327,7 @@
     public void timeByteBuffer_getShort(
             MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws Exception {
         ByteBuffer src = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             src.position(aligned ? 0 : 1);
             for (int i = 0; i < 1024; ++i) {
@@ -343,7 +343,7 @@
         ShortBuffer src =
                 ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType).asShortBuffer();
         short[] dst = new short[1024];
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < 1024; ++i) {
                 src.position(0);
@@ -361,7 +361,7 @@
     public void timeByteBuffer_putByte(
             MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws Exception {
         ByteBuffer src = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             src.position(0);
             for (int i = 0; i < 1024; ++i) {
@@ -376,7 +376,7 @@
             MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws Exception {
         ByteBuffer dst = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType);
         byte[] src = new byte[1024];
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < 1024; ++i) {
                 dst.position(aligned ? 0 : 1);
@@ -390,7 +390,7 @@
     public void timeByteBuffer_putChar(
             MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws Exception {
         ByteBuffer src = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             src.position(aligned ? 0 : 1);
             for (int i = 0; i < 1024; ++i) {
@@ -406,7 +406,7 @@
         CharBuffer dst =
                 ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType).asCharBuffer();
         char[] src = new char[1024];
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < 1024; ++i) {
                 dst.position(0);
@@ -420,7 +420,7 @@
     public void timeByteBuffer_putDouble(
             MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws Exception {
         ByteBuffer src = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             src.position(aligned ? 0 : 1);
             for (int i = 0; i < 1024; ++i) {
@@ -436,7 +436,7 @@
         DoubleBuffer dst =
                 ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType).asDoubleBuffer();
         double[] src = new double[1024];
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < 1024; ++i) {
                 dst.position(0);
@@ -450,7 +450,7 @@
     public void timeByteBuffer_putFloat(
             MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws Exception {
         ByteBuffer src = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             src.position(aligned ? 0 : 1);
             for (int i = 0; i < 1024; ++i) {
@@ -466,7 +466,7 @@
         FloatBuffer dst =
                 ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType).asFloatBuffer();
         float[] src = new float[1024];
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < 1024; ++i) {
                 dst.position(0);
@@ -480,7 +480,7 @@
     public void timeByteBuffer_putInt(
             MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws Exception {
         ByteBuffer src = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             src.position(aligned ? 0 : 1);
             for (int i = 0; i < 1024; ++i) {
@@ -495,7 +495,7 @@
             MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws Exception {
         IntBuffer dst = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType).asIntBuffer();
         int[] src = new int[1024];
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < 1024; ++i) {
                 dst.position(0);
@@ -509,7 +509,7 @@
     public void timeByteBuffer_putLong(
             MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws Exception {
         ByteBuffer src = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             src.position(aligned ? 0 : 1);
             for (int i = 0; i < 1024; ++i) {
@@ -525,7 +525,7 @@
         LongBuffer dst =
                 ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType).asLongBuffer();
         long[] src = new long[1024];
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < 1024; ++i) {
                 dst.position(0);
@@ -539,7 +539,7 @@
     public void timeByteBuffer_putShort(
             MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws Exception {
         ByteBuffer src = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             src.position(aligned ? 0 : 1);
             for (int i = 0; i < 1024; ++i) {
@@ -555,7 +555,7 @@
         ShortBuffer dst =
                 ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType).asShortBuffer();
         short[] src = new short[1024];
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < 1024; ++i) {
                 dst.position(0);
@@ -566,7 +566,7 @@
 
     @Test
     public void time_new_byteArray() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             byte[] bs = new byte[8192];
         }
@@ -574,7 +574,7 @@
 
     @Test
     public void time_ByteBuffer_allocate() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             ByteBuffer bs = ByteBuffer.allocate(8192);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/ByteBufferScalarVersusVectorPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/ByteBufferScalarVersusVectorPerfTest.java
index 9ee927c..8c318cd 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/ByteBufferScalarVersusVectorPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/ByteBufferScalarVersusVectorPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -35,7 +35,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class ByteBufferScalarVersusVectorPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     public static Collection<Object[]> getData() {
         return Arrays.asList(
@@ -112,7 +112,7 @@
             throws Exception {
         ByteBuffer src = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType);
         ByteBuffer dst = ByteBufferPerfTest.newBuffer(byteOrder, aligned, bufferType);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             src.position(0);
             dst.position(0);
@@ -127,7 +127,7 @@
     public void timeByteBufferBulkGet(boolean aligned) throws Exception {
         ByteBuffer src = ByteBuffer.allocate(aligned ? 8192 : 8192 + 1);
         byte[] dst = new byte[8192];
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             src.position(aligned ? 0 : 1);
             src.get(dst, 0, dst.length);
@@ -139,7 +139,7 @@
     public void timeDirectByteBufferBulkGet(boolean aligned) throws Exception {
         ByteBuffer src = ByteBuffer.allocateDirect(aligned ? 8192 : 8192 + 1);
         byte[] dst = new byte[8192];
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             src.position(aligned ? 0 : 1);
             src.get(dst, 0, dst.length);
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/CharacterPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/CharacterPerfTest.java
index e4a4db7..12c1f8c 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/CharacterPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/CharacterPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -38,7 +38,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class CharacterPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     public static Collection<Object[]> getData() {
         return Arrays.asList(
@@ -84,7 +84,7 @@
     public void timeIsSpace(CharacterSet characterSet, Overload overload) {
         setUp(characterSet);
         boolean fake = false;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         if (overload == Overload.CHAR) {
             while (state.keepRunning()) {
                 for (int ch = 0; ch < 65536; ++ch) {
@@ -104,7 +104,7 @@
     @Parameters(method = "getData")
     public void timeDigit(CharacterSet characterSet, Overload overload) {
         setUp(characterSet);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         if (overload == Overload.CHAR) {
             while (state.keepRunning()) {
                 for (int ch = 0; ch < 65536; ++ch) {
@@ -124,7 +124,7 @@
     @Parameters(method = "getData")
     public void timeGetNumericValue(CharacterSet characterSet, Overload overload) {
         setUp(characterSet);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         if (overload == Overload.CHAR) {
             while (state.keepRunning()) {
                 for (int ch = 0; ch < 65536; ++ch) {
@@ -144,7 +144,7 @@
     @Parameters(method = "getData")
     public void timeIsDigit(CharacterSet characterSet, Overload overload) {
         setUp(characterSet);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         if (overload == Overload.CHAR) {
             while (state.keepRunning()) {
                 for (int ch = 0; ch < 65536; ++ch) {
@@ -164,7 +164,7 @@
     @Parameters(method = "getData")
     public void timeIsIdentifierIgnorable(CharacterSet characterSet, Overload overload) {
         setUp(characterSet);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         if (overload == Overload.CHAR) {
             while (state.keepRunning()) {
                 for (int ch = 0; ch < 65536; ++ch) {
@@ -184,7 +184,7 @@
     @Parameters(method = "getData")
     public void timeIsJavaIdentifierPart(CharacterSet characterSet, Overload overload) {
         setUp(characterSet);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         if (overload == Overload.CHAR) {
             while (state.keepRunning()) {
                 for (int ch = 0; ch < 65536; ++ch) {
@@ -204,7 +204,7 @@
     @Parameters(method = "getData")
     public void timeIsJavaIdentifierStart(CharacterSet characterSet, Overload overload) {
         setUp(characterSet);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         if (overload == Overload.CHAR) {
             while (state.keepRunning()) {
                 for (int ch = 0; ch < 65536; ++ch) {
@@ -224,7 +224,7 @@
     @Parameters(method = "getData")
     public void timeIsLetter(CharacterSet characterSet, Overload overload) {
         setUp(characterSet);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         if (overload == Overload.CHAR) {
             while (state.keepRunning()) {
                 for (int ch = 0; ch < 65536; ++ch) {
@@ -244,7 +244,7 @@
     @Parameters(method = "getData")
     public void timeIsLetterOrDigit(CharacterSet characterSet, Overload overload) {
         setUp(characterSet);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         if (overload == Overload.CHAR) {
             while (state.keepRunning()) {
                 for (int ch = 0; ch < 65536; ++ch) {
@@ -264,7 +264,7 @@
     @Parameters(method = "getData")
     public void timeIsLowerCase(CharacterSet characterSet, Overload overload) {
         setUp(characterSet);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         if (overload == Overload.CHAR) {
             while (state.keepRunning()) {
                 for (int ch = 0; ch < 65536; ++ch) {
@@ -284,7 +284,7 @@
     @Parameters(method = "getData")
     public void timeIsSpaceChar(CharacterSet characterSet, Overload overload) {
         setUp(characterSet);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         if (overload == Overload.CHAR) {
             while (state.keepRunning()) {
                 for (int ch = 0; ch < 65536; ++ch) {
@@ -304,7 +304,7 @@
     @Parameters(method = "getData")
     public void timeIsUpperCase(CharacterSet characterSet, Overload overload) {
         setUp(characterSet);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         if (overload == Overload.CHAR) {
             while (state.keepRunning()) {
                 for (int ch = 0; ch < 65536; ++ch) {
@@ -324,7 +324,7 @@
     @Parameters(method = "getData")
     public void timeIsWhitespace(CharacterSet characterSet, Overload overload) {
         setUp(characterSet);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         if (overload == Overload.CHAR) {
             while (state.keepRunning()) {
                 for (int ch = 0; ch < 65536; ++ch) {
@@ -344,7 +344,7 @@
     @Parameters(method = "getData")
     public void timeToLowerCase(CharacterSet characterSet, Overload overload) {
         setUp(characterSet);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         if (overload == Overload.CHAR) {
             while (state.keepRunning()) {
                 for (int ch = 0; ch < 65536; ++ch) {
@@ -364,7 +364,7 @@
     @Parameters(method = "getData")
     public void timeToUpperCase(CharacterSet characterSet, Overload overload) {
         setUp(characterSet);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         if (overload == Overload.CHAR) {
             while (state.keepRunning()) {
                 for (int ch = 0; ch < 65536; ++ch) {
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/CharsetForNamePerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/CharsetForNamePerfTest.java
index 858c101..4dd890a 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/CharsetForNamePerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/CharsetForNamePerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -33,7 +33,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class CharsetForNamePerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     public static String[] charsetNames() {
         return new String[] {
@@ -52,7 +52,7 @@
     @Test
     @Parameters(method = "charsetNames")
     public void timeCharsetForName(String charsetName) throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Charset.forName(charsetName);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/CharsetPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/CharsetPerfTest.java
index a2fb7d7..3a71ce9 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/CharsetPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/CharsetPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -34,7 +34,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class CharsetPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     public static Collection<Object[]> getData() {
         return Arrays.asList(
@@ -91,7 +91,7 @@
     @Parameters(method = "getData")
     public void time_new_String_BString(int length, String name) throws Exception {
         byte[] bytes = makeBytes(makeString(length));
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             new String(bytes, name);
         }
@@ -101,7 +101,7 @@
     @Parameters(method = "getData")
     public void time_new_String_BII(int length, String name) throws Exception {
         byte[] bytes = makeBytes(makeString(length));
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             new String(bytes, 0, bytes.length);
         }
@@ -111,7 +111,7 @@
     @Parameters(method = "getData")
     public void time_new_String_BIIString(int length, String name) throws Exception {
         byte[] bytes = makeBytes(makeString(length));
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             new String(bytes, 0, bytes.length, name);
         }
@@ -121,7 +121,7 @@
     @Parameters(method = "getData")
     public void time_String_getBytes(int length, String name) throws Exception {
         String string = makeString(length);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             string.getBytes(name);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/CharsetUtf8PerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/CharsetUtf8PerfTest.java
index 2047444..6c30a16 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/CharsetUtf8PerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/CharsetUtf8PerfTest.java
@@ -16,8 +16,8 @@
 package android.libcore.regression;
 
 import android.icu.lang.UCharacter;
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -35,7 +35,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class CharsetUtf8PerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private void makeUnicodeRange(int startingCodePoint, int endingCodePoint) {
         StringBuilder builder = new StringBuilder();
@@ -46,7 +46,7 @@
         }
 
         String str = builder.toString();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StringBuilder builder2 = new StringBuilder();
             builder2.append(str);
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/ChecksumPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/ChecksumPerfTest.java
index 4ce8b41..dcdfd37 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/ChecksumPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/ChecksumPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -32,13 +32,13 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class ChecksumPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeAdler_block() throws Exception {
         byte[] bytes = new byte[10000];
         Adler32 adler = new Adler32();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             adler.update(bytes);
         }
@@ -47,7 +47,7 @@
     @Test
     public void timeAdler_byte() throws Exception {
         Adler32 adler = new Adler32();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             adler.update(1);
         }
@@ -57,7 +57,7 @@
     public void timeCrc_block() throws Exception {
         byte[] bytes = new byte[10000];
         CRC32 crc = new CRC32();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             crc.update(bytes);
         }
@@ -66,7 +66,7 @@
     @Test
     public void timeCrc_byte() throws Exception {
         CRC32 crc = new CRC32();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             crc.update(1);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/CipherInputStreamPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/CipherInputStreamPerfTest.java
index 6a7ec1a..6c175b1 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/CipherInputStreamPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/CipherInputStreamPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -41,7 +41,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class CipherInputStreamPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private static final int DATA_SIZE = 1024 * 1024;
     private static final byte[] DATA = new byte[DATA_SIZE];
@@ -80,7 +80,7 @@
 
     @Test
     public void timeEncrypt() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mCipherEncrypt.init(Cipher.ENCRYPT_MODE, mKey, mSpec);
             InputStream is = new CipherInputStream(new ByteArrayInputStream(DATA), mCipherEncrypt);
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/CipherPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/CipherPerfTest.java
index 238c028..136822e 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/CipherPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/CipherPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -47,7 +47,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class CipherPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     public static Collection getCases() {
         int[] keySizes = new int[] {128, 192, 256};
@@ -180,7 +180,7 @@
             Mode mode, Padding padding, int keySize, int inputSize, Implementation implementation)
             throws Exception {
         setUp(mode, padding, keySize, implementation);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mCipherEncrypt.doFinal(DATA, 0, inputSize, mOutput);
         }
@@ -192,7 +192,7 @@
             Mode mode, Padding padding, int keySize, int inputSize, Implementation implementation)
             throws Exception {
         setUp(mode, padding, keySize, implementation);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mCipherDecrypt.doFinal(DATA, 0, inputSize, mOutput);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/CollatorPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/CollatorPerfTest.java
index 7e55660..9efb7ce 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/CollatorPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/CollatorPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -33,7 +33,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class CollatorPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private static final RuleBasedCollator COLLATOR =
             (RuleBasedCollator) Collator.getInstance(Locale.US);
@@ -41,7 +41,7 @@
     @Test
     public void timeCollatorPrimary() {
         COLLATOR.setStrength(Collator.PRIMARY);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             COLLATOR.compare("abcde", "abcdf");
             COLLATOR.compare("abcde", "abcde");
@@ -52,7 +52,7 @@
     @Test
     public void timeCollatorSecondary() {
         COLLATOR.setStrength(Collator.SECONDARY);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             COLLATOR.compare("abcdÂ", "abcdÄ");
             COLLATOR.compare("abcdÂ", "abcdÂ");
@@ -63,7 +63,7 @@
     @Test
     public void timeCollatorTertiary() {
         COLLATOR.setStrength(Collator.TERTIARY);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             COLLATOR.compare("abcdE", "abcde");
             COLLATOR.compare("abcde", "abcde");
@@ -74,7 +74,7 @@
     @Test
     public void timeCollatorIdentical() {
         COLLATOR.setStrength(Collator.IDENTICAL);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             COLLATOR.compare("abcdȪ", "abcdȫ");
             COLLATOR.compare("abcdȪ", "abcdȪ");
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/CollectionsPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/CollectionsPerfTest.java
index 100798a..4e5ceaf 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/CollectionsPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/CollectionsPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -40,7 +40,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class CollectionsPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     public static Collection<Object[]> getData() {
         return Arrays.asList(new Object[][] {{4}, {16}, {64}, {256}, {1024}});
@@ -60,7 +60,7 @@
     @Parameters(method = "getData")
     public void timeSort_arrayList(int arrayListLength) throws Exception {
         List<Integer> input = buildList(arrayListLength, ArrayList.class);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Collections.sort(input);
         }
@@ -70,7 +70,7 @@
     @Parameters(method = "getData")
     public void timeSortWithComparator_arrayList(int arrayListLength) throws Exception {
         List<Integer> input = buildList(arrayListLength, ArrayList.class);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Collections.sort(input, REVERSE);
         }
@@ -80,7 +80,7 @@
     @Parameters(method = "getData")
     public void timeSort_vector(int arrayListLength) throws Exception {
         List<Integer> input = buildList(arrayListLength, Vector.class);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Collections.sort(input);
         }
@@ -90,7 +90,7 @@
     @Parameters(method = "getData")
     public void timeSortWithComparator_vector(int arrayListLength) throws Exception {
         List<Integer> input = buildList(arrayListLength, Vector.class);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Collections.sort(input, REVERSE);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/DateFormatPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/DateFormatPerfTest.java
index b6784a8..b0ccd99 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/DateFormatPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/DateFormatPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -33,7 +33,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public final class DateFormatPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private Locale mLocale1;
     private Locale mLocale2;
@@ -50,7 +50,7 @@
 
     @Test
     public void timeGetDateTimeInstance() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             DateFormat.getDateTimeInstance();
         }
@@ -58,7 +58,7 @@
 
     @Test
     public void timeGetDateTimeInstance_multiple() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT, mLocale1);
             DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT, mLocale2);
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/DecimalFormatPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/DecimalFormatPerfTest.java
index 52f9873..3a2f6fa 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/DecimalFormatPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/DecimalFormatPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -34,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class DecimalFormatPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private static final String EXP_PATTERN = "##E0";
 
@@ -58,7 +58,7 @@
     public void formatWithGrouping(Object obj) {
         DF.setGroupingSize(3);
         DF.setGroupingUsed(true);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             DF.format(obj);
         }
@@ -66,21 +66,21 @@
 
     public void format(String pattern, Object obj) {
         PATTERN_INSTANCE.applyPattern(pattern);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             PATTERN_INSTANCE.format(obj);
         }
     }
 
     public void format(Object obj) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             DF.format(obj);
         }
     }
 
     public void formatToCharacterIterator(Object obj) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             DF.formatToCharacterIterator(obj);
         }
@@ -88,14 +88,14 @@
 
 
     public void formatCurrencyUS(Object obj) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             DF_CURRENCY_US.format(obj);
         }
     }
 
     public void formatCurrencyFR(Object obj) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             DF_CURRENCY_FR.format(obj);
         }
@@ -213,7 +213,7 @@
 
     @Test
     public void time_instantiation() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             new DecimalFormat();
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/DecimalFormatSymbolsPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/DecimalFormatSymbolsPerfTest.java
index 6105420..4bc550e 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/DecimalFormatSymbolsPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/DecimalFormatSymbolsPerfTest.java
@@ -15,8 +15,8 @@
  */
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -31,13 +31,13 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class DecimalFormatSymbolsPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private static Locale sLocale = Locale.getDefault(Locale.Category.FORMAT);
 
     @Test
     public void time_instantiation() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             new DecimalFormatSymbols(sLocale);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/DefaultCharsetPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/DefaultCharsetPerfTest.java
index fae74a5..597447b 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/DefaultCharsetPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/DefaultCharsetPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -31,11 +31,11 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class DefaultCharsetPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void time_defaultCharset() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Charset.defaultCharset();
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/DnsPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/DnsPerfTest.java
index 2915363..b17d0f4 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/DnsPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/DnsPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -32,7 +32,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class DnsPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeDns() throws Exception {
@@ -53,7 +53,7 @@
                 "www.cnn.com",
                 "bad.host.mtv.corp.google.com",
         };
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         int i = 0;
         while (state.keepRunning()) {
             try {
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/DoPrivilegedPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/DoPrivilegedPerfTest.java
index dd7e5cc..4c8a8ea 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/DoPrivilegedPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/DoPrivilegedPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -32,11 +32,11 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class DoPrivilegedPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeDirect() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             String lineSeparator = System.getProperty("line.separator");
         }
@@ -44,7 +44,7 @@
 
     @Test
     public void timeFastAndSlow() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             String lineSeparator;
             if (System.getSecurityManager() == null) {
@@ -61,7 +61,7 @@
 
     @Test
     public void timeNewAction() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             String lineSeparator = AccessController.doPrivileged(new PrivilegedAction<String>() {
                 public String run() {
@@ -74,7 +74,7 @@
     @Test
     public void timeReusedAction() throws Exception {
         final PrivilegedAction<String> action = new ReusableAction("line.separator");
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             String lineSeparator = AccessController.doPrivileged(action);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/DoublePerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/DoublePerfTest.java
index e034a47..4ff65b1 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/DoublePerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/DoublePerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -29,7 +29,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class DoublePerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private double mD = 1.2;
     private long mL = 4608083138725491507L;
@@ -37,7 +37,7 @@
     @Test
     public void timeDoubleToLongBits() {
         long result = 123;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Double.doubleToLongBits(mD);
         }
@@ -49,7 +49,7 @@
     @Test
     public void timeDoubleToRawLongBits() {
         long result = 123;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Double.doubleToRawLongBits(mD);
         }
@@ -61,7 +61,7 @@
     @Test
     public void timeLongBitsToDouble() {
         double result = 123.0;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Double.longBitsToDouble(mL);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/EqualsHashCodePerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/EqualsHashCodePerfTest.java
index fe1b599..aacdcee1 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/EqualsHashCodePerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/EqualsHashCodePerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -37,7 +37,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public final class EqualsHashCodePerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private enum Type {
         URI() {
@@ -82,7 +82,7 @@
         mA2 = type.newInstance("https://mail.google.com/mail/u/0/?shva=1#inbox");
         mB1 = type.newInstance("http://developer.android.com/reference/java/net/URI.html");
         mB2 = type.newInstance("http://developer.android.com/reference/java/net/URI.html");
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mA1.equals(mB1);
             mA1.equals(mA2);
@@ -95,7 +95,7 @@
     public void timeHashCode(Type type) throws Exception {
         mA1 = type.newInstance("https://mail.google.com/mail/u/0/?shva=1#inbox");
         mB1 = type.newInstance("http://developer.android.com/reference/java/net/URI.html");
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mA1.hashCode();
             mB1.hashCode();
@@ -112,7 +112,7 @@
                         "http://developer.android.com/query?q="
                                 + QUERY.substring(0, QUERY.length() - 3)
                                 + "%AF");
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mC1.equals(mC2);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/ExpensiveObjectsPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/ExpensiveObjectsPerfTest.java
index ecbfc71..9a6864e 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/ExpensiveObjectsPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/ExpensiveObjectsPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -41,11 +41,11 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class ExpensiveObjectsPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeNewDateFormatTimeInstance() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             DateFormat df = DateFormat.getTimeInstance(DateFormat.SHORT);
             df.format(System.currentTimeMillis());
@@ -55,7 +55,7 @@
     @Test(timeout = 900000)
     public void timeClonedDateFormatTimeInstance() {
         DateFormat df = DateFormat.getTimeInstance(DateFormat.SHORT);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             ((DateFormat) df.clone()).format(System.currentTimeMillis());
         }
@@ -64,7 +64,7 @@
     @Test
     public void timeReusedDateFormatTimeInstance() {
         DateFormat df = DateFormat.getTimeInstance(DateFormat.SHORT);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             synchronized (df) {
                 df.format(System.currentTimeMillis());
@@ -74,7 +74,7 @@
 
     @Test(timeout = 900000)
     public void timeNewCollator() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Collator.getInstance(Locale.US);
         }
@@ -83,7 +83,7 @@
     @Test
     public void timeClonedCollator() {
         Collator c = Collator.getInstance(Locale.US);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             c.clone();
         }
@@ -91,7 +91,7 @@
 
     @Test
     public void timeNewDateFormatSymbols() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             new DateFormatSymbols(Locale.US);
         }
@@ -100,7 +100,7 @@
     @Test
     public void timeClonedDateFormatSymbols() {
         DateFormatSymbols dfs = new DateFormatSymbols(Locale.US);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             dfs.clone();
         }
@@ -108,7 +108,7 @@
 
     @Test
     public void timeNewDecimalFormatSymbols() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             new DecimalFormatSymbols(Locale.US);
         }
@@ -117,7 +117,7 @@
     @Test
     public void timeClonedDecimalFormatSymbols() {
         DecimalFormatSymbols dfs = new DecimalFormatSymbols(Locale.US);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             dfs.clone();
         }
@@ -125,7 +125,7 @@
 
     @Test
     public void timeNewNumberFormat() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             NumberFormat.getInstance(Locale.US);
         }
@@ -134,7 +134,7 @@
     @Test
     public void timeClonedNumberFormat() {
         NumberFormat nf = NumberFormat.getInstance(Locale.US);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             nf.clone();
         }
@@ -142,7 +142,7 @@
 
     @Test
     public void timeLongToString() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Long.toString(1024L);
         }
@@ -151,7 +151,7 @@
     @Test
     public void timeNumberFormatTrivialFormatDouble() {
         NumberFormat nf = NumberFormat.getInstance(Locale.US);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             nf.format(1024.0);
         }
@@ -159,7 +159,7 @@
 
     @Test
     public void timeNewSimpleDateFormat() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             new SimpleDateFormat();
         }
@@ -167,7 +167,7 @@
 
     @Test
     public void timeNewGregorianCalendar() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             new GregorianCalendar();
         }
@@ -176,7 +176,7 @@
     @Test
     public void timeClonedGregorianCalendar() {
         GregorianCalendar gc = new GregorianCalendar();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             gc.clone();
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/FilePerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/FilePerfTest.java
index 0c14d64..cef7e8c7 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/FilePerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/FilePerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -31,11 +31,11 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public final class FilePerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeFileCreationWithEmptyChild() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             new File("/foo", "/");
         }
@@ -43,7 +43,7 @@
 
     @Test
     public void timeFileCreationWithNormalizationNecessary() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             new File("/foo//bar//baz//bag", "/baz/");
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/FloatPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/FloatPerfTest.java
index 7d7d83b..645c023 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/FloatPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/FloatPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -29,7 +29,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class FloatPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private float mFloat = 1.2f;
     private int mInt = 1067030938;
@@ -37,7 +37,7 @@
     @Test
     public void timeFloatToIntBits() {
         int result = 123;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Float.floatToIntBits(mFloat);
         }
@@ -49,7 +49,7 @@
     @Test
     public void timeFloatToRawIntBits() {
         int result = 123;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Float.floatToRawIntBits(mFloat);
         }
@@ -61,7 +61,7 @@
     @Test
     public void timeIntBitsToFloat() {
         float result = 123.0f;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Float.intBitsToFloat(mInt);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/FormatterPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/FormatterPerfTest.java
index 08dda53..cf76137 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/FormatterPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/FormatterPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -35,11 +35,11 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class FormatterPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeFormatter_NoFormatting() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Formatter f = new Formatter();
             f.format("this is a reasonably short string that doesn't actually need any formatting");
@@ -48,7 +48,7 @@
 
     @Test
     public void timeStringBuilder_NoFormatting() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StringBuilder sb = new StringBuilder();
             sb.append("this is a reasonably short string that doesn't actually need formatting");
@@ -58,7 +58,7 @@
     @Test
     public void timeFormatter_OneInt() {
         Integer value = Integer.valueOf(1024); // We're not trying to benchmark boxing here.
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Formatter f = new Formatter();
             f.format("this is a reasonably short string that has an int %d in it", value);
@@ -69,7 +69,7 @@
     public void timeFormatter_OneIntArabic() {
         Locale arabic = new Locale("ar");
         Integer value = Integer.valueOf(1024); // We're not trying to benchmark boxing here.
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Formatter f = new Formatter();
             f.format(arabic, "this is a reasonably short string that has an int %d in it", value);
@@ -78,7 +78,7 @@
 
     @Test
     public void timeStringBuilder_OneInt() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StringBuilder sb = new StringBuilder();
             sb.append("this is a reasonably short string that has an int ");
@@ -90,7 +90,7 @@
     @Test
     public void timeFormatter_OneHexInt() {
         Integer value = Integer.valueOf(1024); // We're not trying to benchmark boxing here.
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Formatter f = new Formatter();
             f.format("this is a reasonably short string that has an int %x in it", value);
@@ -99,7 +99,7 @@
 
     @Test
     public void timeStringBuilder_OneHexInt() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StringBuilder sb = new StringBuilder();
             sb.append("this is a reasonably short string that has an int ");
@@ -111,7 +111,7 @@
     @Test
     public void timeFormatter_OneFloat() {
         Float value = Float.valueOf(10.24f); // We're not trying to benchmark boxing here.
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Formatter f = new Formatter();
             f.format("this is a reasonably short string that has a float %f in it", value);
@@ -121,7 +121,7 @@
     @Test
     public void timeFormatter_OneFloat_dot2f() {
         Float value = Float.valueOf(10.24f); // We're not trying to benchmark boxing here.
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Formatter f = new Formatter();
             f.format("this is a reasonably short string that has a float %.2f in it", value);
@@ -131,7 +131,7 @@
     @Test
     public void timeFormatter_TwoFloats() {
         Float value = Float.valueOf(10.24f); // We're not trying to benchmark boxing here.
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Formatter f = new Formatter();
             f.format("this is a short string that has two floats %f and %f in it", value, value);
@@ -140,7 +140,7 @@
 
     @Test
     public void timeStringBuilder_OneFloat() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StringBuilder sb = new StringBuilder();
             sb.append("this is a reasonably short string that has a float ");
@@ -151,7 +151,7 @@
 
     @Test
     public void timeFormatter_OneString() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Formatter f = new Formatter();
             f.format("this is a reasonably short string that has a string %s in it", "hello");
@@ -160,7 +160,7 @@
 
     @Test
     public void timeStringBuilder_OneString() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StringBuilder sb = new StringBuilder();
             sb.append("this is a reasonably short string that has a string ");
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/IdnPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/IdnPerfTest.java
index a09ad80..833575a 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/IdnPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/IdnPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -31,11 +31,11 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class IdnPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeToUnicode() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             IDN.toASCII("fass.de");
             IDN.toASCII("faß.de");
@@ -51,7 +51,7 @@
 
     @Test
     public void timeToAscii() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             IDN.toUnicode("xn--fss-qla.de");
             IDN.toUnicode("xn--n00d.com");
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/IntConstantDivisionPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/IntConstantDivisionPerfTest.java
index be22814..1c901c8 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/IntConstantDivisionPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/IntConstantDivisionPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -29,12 +29,12 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class IntConstantDivisionPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeDivideIntByConstant2() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result /= 2;
         }
@@ -43,7 +43,7 @@
     @Test
     public void timeDivideIntByConstant8() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result /= 8;
         }
@@ -52,7 +52,7 @@
     @Test
     public void timeDivideIntByConstant10() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result /= 10;
         }
@@ -61,7 +61,7 @@
     @Test
     public void timeDivideIntByConstant100() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result /= 100;
         }
@@ -70,7 +70,7 @@
     @Test
     public void timeDivideIntByConstant100_HandOptimized() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = (int) ((0x51eb851fL * result) >>> 37);
         }
@@ -79,7 +79,7 @@
     @Test
     public void timeDivideIntByConstant2048() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result /= 2048;
         }
@@ -89,7 +89,7 @@
     public void timeDivideIntByVariable2() {
         int result = 1;
         int factor = 2;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result /= factor;
         }
@@ -99,7 +99,7 @@
     public void timeDivideIntByVariable10() {
         int result = 1;
         int factor = 10;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result /= factor;
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/IntConstantMultiplicationPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/IntConstantMultiplicationPerfTest.java
index 4337c90..3d3af4c 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/IntConstantMultiplicationPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/IntConstantMultiplicationPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -29,12 +29,12 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class IntConstantMultiplicationPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeMultiplyIntByConstant6() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result *= 6;
         }
@@ -43,7 +43,7 @@
     @Test
     public void timeMultiplyIntByConstant7() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result *= 7;
         }
@@ -52,7 +52,7 @@
     @Test
     public void timeMultiplyIntByConstant8() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result *= 8;
         }
@@ -61,7 +61,7 @@
     @Test
     public void timeMultiplyIntByConstant8_Shift() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result <<= 3;
         }
@@ -70,7 +70,7 @@
     @Test
     public void timeMultiplyIntByConstant10() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result *= 10;
         }
@@ -79,7 +79,7 @@
     @Test
     public void timeMultiplyIntByConstant10_Shift() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = (result + (result << 2)) << 1;
         }
@@ -88,7 +88,7 @@
     @Test
     public void timeMultiplyIntByConstant2047() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result *= 2047;
         }
@@ -97,7 +97,7 @@
     @Test
     public void timeMultiplyIntByConstant2048() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result *= 2048;
         }
@@ -106,7 +106,7 @@
     @Test
     public void timeMultiplyIntByConstant2049() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result *= 2049;
         }
@@ -116,7 +116,7 @@
     public void timeMultiplyIntByVariable10() {
         int result = 1;
         int factor = 10;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result *= factor;
         }
@@ -126,7 +126,7 @@
     public void timeMultiplyIntByVariable8() {
         int result = 1;
         int factor = 8;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result *= factor;
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/IntConstantRemainderPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/IntConstantRemainderPerfTest.java
index 1b6c502..7c86633 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/IntConstantRemainderPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/IntConstantRemainderPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -29,12 +29,12 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class IntConstantRemainderPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeRemainderIntByConstant2() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result %= 2;
         }
@@ -43,7 +43,7 @@
     @Test
     public void timeRemainderIntByConstant8() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result %= 8;
         }
@@ -52,7 +52,7 @@
     @Test
     public void timeRemainderIntByConstant10() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result %= 10;
         }
@@ -61,7 +61,7 @@
     @Test
     public void timeRemainderIntByConstant100() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result %= 100;
         }
@@ -70,7 +70,7 @@
     @Test
     public void timeRemainderIntByConstant2048() {
         int result = 1;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result %= 2048;
         }
@@ -80,7 +80,7 @@
     public void timeRemainderIntByVariable2() {
         int result = 1;
         int factor = 2;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result %= factor;
         }
@@ -90,7 +90,7 @@
     public void timeRemainderIntByVariable10() {
         int result = 1;
         int factor = 10;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result %= factor;
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/IntegerPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/IntegerPerfTest.java
index 170bb58..e2a9dcc 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/IntegerPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/IntegerPerfTest.java
@@ -16,20 +16,20 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import org.junit.Rule;
 import org.junit.Test;
 
 public class IntegerPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeLongSignumBranch() {
         int t = 0;
         int i = 0;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             t += signum1(-(++i));
             t += signum1(0);
@@ -41,7 +41,7 @@
     public void timeLongSignumBranchFree() {
         int t = 0;
         int i = 0;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             t += signum2(-(++i));
             t += signum2(0);
@@ -61,7 +61,7 @@
     public void timeLongBitCount_BitSet() {
         int t = 0;
         int i = 0;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             t += pop((long) ++i);
         }
@@ -89,7 +89,7 @@
     public void timeLongBitCount_2Int() {
         int t = 0;
         int i = 0;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             t += pop2((long) ++i);
         }
@@ -105,7 +105,7 @@
     public void timeLongBitCount_Long() {
         int t = 0;
         int i = 0;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             t += Long.bitCount((long) ++i);
         }
@@ -140,7 +140,7 @@
     public void timeNumberOfTrailingZerosHD() {
         int t = 0;
         int i = 0;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             t += numberOfTrailingZerosHD(++i);
         }
@@ -150,7 +150,7 @@
     public void timeNumberOfTrailingZerosOL() {
         int t = 0;
         int i = 0;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             t += numberOfTrailingZerosOL(++i);
         }
@@ -163,7 +163,7 @@
                     "0", "1", "12", "123", "1234", "12345", "123456", "1234567", "12345678"
                 };
         int t = 0;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int j = 0; j < intStrings.length; ++j) {
                 t += Integer.valueOf(intStrings[j]);
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/IntegralToStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/IntegralToStringPerfTest.java
index 0aa854e..669bfbf 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/IntegralToStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/IntegralToStringPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -29,7 +29,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class IntegralToStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private static final int SMALL = 12;
     private static final int MEDIUM = 12345;
@@ -37,7 +37,7 @@
 
     @Test
     public void time_IntegerToString_small() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Integer.toString(SMALL);
         }
@@ -45,7 +45,7 @@
 
     @Test
     public void time_IntegerToString_medium() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Integer.toString(MEDIUM);
         }
@@ -53,7 +53,7 @@
 
     @Test
     public void time_IntegerToString_large() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Integer.toString(LARGE);
         }
@@ -61,7 +61,7 @@
 
     @Test
     public void time_IntegerToString2_small() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Integer.toString(SMALL, 2);
         }
@@ -69,7 +69,7 @@
 
     @Test
     public void time_IntegerToString2_medium() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Integer.toString(MEDIUM, 2);
         }
@@ -77,7 +77,7 @@
 
     @Test
     public void time_IntegerToString2_large() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Integer.toString(LARGE, 2);
         }
@@ -85,7 +85,7 @@
 
     @Test
     public void time_IntegerToString10_small() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Integer.toString(SMALL, 10);
         }
@@ -93,7 +93,7 @@
 
     @Test
     public void time_IntegerToString10_medium() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Integer.toString(MEDIUM, 10);
         }
@@ -101,7 +101,7 @@
 
     @Test
     public void time_IntegerToString10_large() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Integer.toString(LARGE, 10);
         }
@@ -109,7 +109,7 @@
 
     @Test
     public void time_IntegerToString16_small() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Integer.toString(SMALL, 16);
         }
@@ -117,7 +117,7 @@
 
     @Test
     public void time_IntegerToString16_medium() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Integer.toString(MEDIUM, 16);
         }
@@ -125,7 +125,7 @@
 
     @Test
     public void time_IntegerToString16_large() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Integer.toString(LARGE, 16);
         }
@@ -133,7 +133,7 @@
 
     @Test
     public void time_IntegerToBinaryString_small() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Integer.toBinaryString(SMALL);
         }
@@ -141,7 +141,7 @@
 
     @Test
     public void time_IntegerToBinaryString_medium() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Integer.toBinaryString(MEDIUM);
         }
@@ -149,7 +149,7 @@
 
     @Test
     public void time_IntegerToBinaryString_large() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Integer.toBinaryString(LARGE);
         }
@@ -157,7 +157,7 @@
 
     @Test
     public void time_IntegerToHexString_small() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Integer.toHexString(SMALL);
         }
@@ -165,7 +165,7 @@
 
     @Test
     public void time_IntegerToHexString_medium() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Integer.toHexString(MEDIUM);
         }
@@ -173,7 +173,7 @@
 
     @Test
     public void time_IntegerToHexString_large() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Integer.toHexString(LARGE);
         }
@@ -181,7 +181,7 @@
 
     @Test
     public void time_StringBuilder_small() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             new StringBuilder().append(SMALL);
         }
@@ -189,7 +189,7 @@
 
     @Test
     public void time_StringBuilder_medium() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             new StringBuilder().append(MEDIUM);
         }
@@ -197,7 +197,7 @@
 
     @Test
     public void time_StringBuilder_large() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             new StringBuilder().append(LARGE);
         }
@@ -205,7 +205,7 @@
 
     @Test
     public void time_Formatter_small() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             String.format("%d", SMALL);
         }
@@ -213,7 +213,7 @@
 
     @Test
     public void time_Formatter_medium() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             String.format("%d", MEDIUM);
         }
@@ -221,7 +221,7 @@
 
     @Test
     public void time_Formatter_large() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             String.format("%d", LARGE);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/KeyPairGeneratorPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/KeyPairGeneratorPerfTest.java
index 9b3d7a0..cda8512 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/KeyPairGeneratorPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/KeyPairGeneratorPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -36,7 +36,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class KeyPairGeneratorPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     public static Collection<Object[]> getData() {
         return Arrays.asList(
@@ -78,7 +78,7 @@
     @Parameters(method = "getData")
     public void time(Algorithm algorithm, Implementation implementation) throws Exception {
         setUp(algorithm, implementation);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             KeyPair keyPair = mGenerator.generateKeyPair();
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/LoopingBackwardsPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/LoopingBackwardsPerfTest.java
index 1a9e19a..8b062d3 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/LoopingBackwardsPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/LoopingBackwardsPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -39,7 +39,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class LoopingBackwardsPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     public static Collection<Object[]> getData() {
         return Arrays.asList(new Object[][] {{2}, {20}, {2000}, {20000000}});
@@ -49,7 +49,7 @@
     @Parameters(method = "getData")
     public void timeForwards(int max) {
         int fake = 0;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int j = 0; j < max; j++) {
                 fake += j;
@@ -61,7 +61,7 @@
     @Parameters(method = "getData")
     public void timeBackwards(int max) {
         int fake = 0;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int j = max - 1; j >= 0; j--) {
                 fake += j;
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/MathPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/MathPerfTest.java
index a8a704c..bcf556c 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/MathPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/MathPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -33,7 +33,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class MathPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private final double mDouble = 1.2;
     private final float mFloat = 1.2f;
@@ -48,7 +48,7 @@
     @Test
     public void timeAbsD() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.abs(mDouble);
         }
@@ -57,7 +57,7 @@
     @Test
     public void timeAbsF() {
         float result = mFloat;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.abs(mFloat);
         }
@@ -66,7 +66,7 @@
     @Test
     public void timeAbsI() {
         int result = mInt;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.abs(mInt);
         }
@@ -75,7 +75,7 @@
     @Test
     public void timeAbsL() {
         long result = mLong;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.abs(mLong);
         }
@@ -84,7 +84,7 @@
     @Test
     public void timeAcos() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.acos(mDouble);
         }
@@ -93,7 +93,7 @@
     @Test
     public void timeAsin() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.asin(mDouble);
         }
@@ -102,7 +102,7 @@
     @Test
     public void timeAtan() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.atan(mDouble);
         }
@@ -111,7 +111,7 @@
     @Test
     public void timeAtan2() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.atan2(3, 4);
         }
@@ -120,7 +120,7 @@
     @Test
     public void timeCbrt() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.cbrt(mDouble);
         }
@@ -129,7 +129,7 @@
     @Test
     public void timeCeil() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.ceil(mDouble);
         }
@@ -138,7 +138,7 @@
     @Test
     public void timeCopySignD() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.copySign(mDouble, mDouble);
         }
@@ -147,7 +147,7 @@
     @Test
     public void timeCopySignF() {
         float result = mFloat;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.copySign(mFloat, mFloat);
         }
@@ -156,7 +156,7 @@
     @Test
     public void timeCopySignD_strict() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = StrictMath.copySign(mDouble, mDouble);
         }
@@ -165,7 +165,7 @@
     @Test
     public void timeCopySignF_strict() {
         float result = mFloat;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = StrictMath.copySign(mFloat, mFloat);
         }
@@ -174,7 +174,7 @@
     @Test
     public void timeCos() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.cos(mDouble);
         }
@@ -183,7 +183,7 @@
     @Test
     public void timeCosh() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.cosh(mDouble);
         }
@@ -192,7 +192,7 @@
     @Test
     public void timeExp() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.exp(mDouble);
         }
@@ -201,7 +201,7 @@
     @Test
     public void timeExpm1() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.expm1(mDouble);
         }
@@ -210,7 +210,7 @@
     @Test
     public void timeFloor() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.floor(mDouble);
         }
@@ -219,7 +219,7 @@
     @Test
     public void timeGetExponentD() {
         int result = mInt;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.getExponent(mDouble);
         }
@@ -228,7 +228,7 @@
     @Test
     public void timeGetExponentF() {
         int result = mInt;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.getExponent(mFloat);
         }
@@ -237,7 +237,7 @@
     @Test
     public void timeHypot() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.hypot(mDouble, mDouble);
         }
@@ -246,7 +246,7 @@
     @Test
     public void timeIEEEremainder() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.IEEEremainder(mDouble, mDouble);
         }
@@ -255,7 +255,7 @@
     @Test
     public void timeLog() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.log(mDouble);
         }
@@ -264,7 +264,7 @@
     @Test
     public void timeLog10() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.log10(mDouble);
         }
@@ -273,7 +273,7 @@
     @Test
     public void timeLog1p() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.log1p(mDouble);
         }
@@ -282,7 +282,7 @@
     @Test
     public void timeMaxD() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.max(mDouble, mDouble);
         }
@@ -291,7 +291,7 @@
     @Test
     public void timeMaxF() {
         float result = mFloat;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.max(mFloat, mFloat);
         }
@@ -300,7 +300,7 @@
     @Test
     public void timeMaxI() {
         int result = mInt;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.max(mInt, mInt);
         }
@@ -309,7 +309,7 @@
     @Test
     public void timeMaxL() {
         long result = mLong;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.max(mLong, mLong);
         }
@@ -318,7 +318,7 @@
     @Test
     public void timeMinD() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.min(mDouble, mDouble);
         }
@@ -327,7 +327,7 @@
     @Test
     public void timeMinF() {
         float result = mFloat;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.min(mFloat, mFloat);
         }
@@ -336,7 +336,7 @@
     @Test
     public void timeMinI() {
         int result = mInt;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.min(mInt, mInt);
         }
@@ -345,7 +345,7 @@
     @Test
     public void timeMinL() {
         long result = mLong;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.min(mLong, mLong);
         }
@@ -354,7 +354,7 @@
     @Test
     public void timeNextAfterD() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.nextAfter(mDouble, mDouble);
         }
@@ -363,7 +363,7 @@
     @Test
     public void timeNextAfterF() {
         float result = mFloat;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.nextAfter(mFloat, mFloat);
         }
@@ -372,7 +372,7 @@
     @Test
     public void timeNextUpD() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.nextUp(mDouble);
         }
@@ -381,7 +381,7 @@
     @Test
     public void timeNextUpF() {
         float result = mFloat;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.nextUp(mFloat);
         }
@@ -390,7 +390,7 @@
     @Test
     public void timePow() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.pow(mDouble, mDouble);
         }
@@ -399,7 +399,7 @@
     @Test
     public void timeRandom() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.random();
         }
@@ -408,7 +408,7 @@
     @Test
     public void timeRint() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.rint(mDouble);
         }
@@ -417,7 +417,7 @@
     @Test
     public void timeRoundD() {
         long result = mLong;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.round(mDouble);
         }
@@ -426,7 +426,7 @@
     @Test
     public void timeRoundF() {
         int result = mInt;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.round(mFloat);
         }
@@ -435,7 +435,7 @@
     @Test
     public void timeScalbD() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.scalb(mDouble, 5);
         }
@@ -444,7 +444,7 @@
     @Test
     public void timeScalbF() {
         float result = mFloat;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.scalb(mFloat, 5);
         }
@@ -453,7 +453,7 @@
     @Test
     public void timeSignumD() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.signum(mDouble);
         }
@@ -462,7 +462,7 @@
     @Test
     public void timeSignumF() {
         float result = mFloat;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.signum(mFloat);
         }
@@ -471,7 +471,7 @@
     @Test
     public void timeSin() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.sin(mDouble);
         }
@@ -480,7 +480,7 @@
     @Test
     public void timeSinh() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.sinh(mDouble);
         }
@@ -489,7 +489,7 @@
     @Test
     public void timeSqrt() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.sqrt(mDouble);
         }
@@ -498,7 +498,7 @@
     @Test
     public void timeTan() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.tan(mDouble);
         }
@@ -507,7 +507,7 @@
     @Test
     public void timeTanh() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.tanh(mDouble);
         }
@@ -516,7 +516,7 @@
     @Test
     public void timeToDegrees() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.toDegrees(mDouble);
         }
@@ -525,7 +525,7 @@
     @Test
     public void timeToRadians() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.toRadians(mDouble);
         }
@@ -534,7 +534,7 @@
     @Test
     public void timeUlpD() {
         double result = mDouble;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.ulp(mDouble);
         }
@@ -543,7 +543,7 @@
     @Test
     public void timeUlpF() {
         float result = mFloat;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result = Math.ulp(mFloat);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/MessageDigestPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/MessageDigestPerfTest.java
index 6da9666..8325dae 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/MessageDigestPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/MessageDigestPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -36,7 +36,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class MessageDigestPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     public static Collection<Object[]> getData() {
         return Arrays.asList(
@@ -97,7 +97,7 @@
     @Test
     @Parameters(method = "getData")
     public void time(Algorithm algorithm) throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             MessageDigest digest = MessageDigest.getInstance(algorithm.toString(), mProvider);
             digest.update(DATA, 0, DATA_SIZE);
@@ -108,7 +108,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeLargeArray(Algorithm algorithm) throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             MessageDigest digest = MessageDigest.getInstance(algorithm.toString(), mProvider);
             digest.update(LARGE_DATA, 0, LARGE_DATA_SIZE);
@@ -119,7 +119,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeSmallChunkOfLargeArray(Algorithm algorithm) throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             MessageDigest digest = MessageDigest.getInstance(algorithm.toString(), mProvider);
             digest.update(LARGE_DATA, LARGE_DATA_SIZE / 2, DATA_SIZE);
@@ -130,7 +130,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeSmallByteBuffer(Algorithm algorithm) throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             MessageDigest digest = MessageDigest.getInstance(algorithm.toString(), mProvider);
             SMALL_BUFFER.position(0);
@@ -143,7 +143,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeSmallDirectByteBuffer(Algorithm algorithm) throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             MessageDigest digest = MessageDigest.getInstance(algorithm.toString(), mProvider);
             SMALL_DIRECT_BUFFER.position(0);
@@ -156,7 +156,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeLargeByteBuffer(Algorithm algorithm) throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             MessageDigest digest = MessageDigest.getInstance(algorithm.toString(), mProvider);
             LARGE_BUFFER.position(0);
@@ -169,7 +169,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeLargeDirectByteBuffer(Algorithm algorithm) throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             MessageDigest digest = MessageDigest.getInstance(algorithm.toString(), mProvider);
             LARGE_DIRECT_BUFFER.position(0);
@@ -182,7 +182,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeSmallChunkOfLargeByteBuffer(Algorithm algorithm) throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             MessageDigest digest = MessageDigest.getInstance(algorithm.toString(), mProvider);
             LARGE_BUFFER.position(LARGE_BUFFER.capacity() / 2);
@@ -195,7 +195,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeSmallChunkOfLargeDirectByteBuffer(Algorithm algorithm) throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             MessageDigest digest = MessageDigest.getInstance(algorithm.toString(), mProvider);
             LARGE_DIRECT_BUFFER.position(LARGE_DIRECT_BUFFER.capacity() / 2);
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/MutableIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/MutableIntPerfTest.java
index 060d18f..266d42c 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/MutableIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/MutableIntPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -35,7 +35,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public final class MutableIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     enum Kind {
         ARRAY() {
@@ -105,21 +105,21 @@
     @Test
     @Parameters(method = "getData")
     public void timeCreate(Kind kind) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         kind.timeCreate(state);
     }
 
     @Test
     @Parameters(method = "getData")
     public void timeIncrement(Kind kind) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         kind.timeIncrement(state);
     }
 
     @Test
     @Parameters(method = "getData")
     public void timeGet(Kind kind) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         kind.timeGet(state);
     }
 }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/NumberFormatPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/NumberFormatPerfTest.java
index 7cb3b22..c2f84fb 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/NumberFormatPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/NumberFormatPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -32,13 +32,13 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class NumberFormatPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private static Locale sLocale = Locale.getDefault(Locale.Category.FORMAT);
 
     @Test
     public void time_instantiation() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             NumberFormat.getInstance(sLocale);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/NumberFormatTrivialFormatLongPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/NumberFormatTrivialFormatLongPerfTest.java
index 272b45a..cdf0911 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/NumberFormatTrivialFormatLongPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/NumberFormatTrivialFormatLongPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -36,12 +36,12 @@
 @LargeTest
 public class NumberFormatTrivialFormatLongPerfTest {
     @Rule
-    public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeNumberFormatTrivialFormatLong() {
         NumberFormat nf = NumberFormat.getInstance(Locale.US);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             nf.format(1024L);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/PriorityQueuePerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/PriorityQueuePerfTest.java
index c3a0966..51f47bb 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/PriorityQueuePerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/PriorityQueuePerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -39,7 +39,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class PriorityQueuePerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     public static Collection<Object[]> getData() {
         return Arrays.asList(
@@ -108,7 +108,7 @@
         // At most allow the queue to empty 10%.
         int resizingThreshold = queueSize / 10;
         int i = 0;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             // Reset queue every so often. This will be called more often for smaller
             // queueSizes, but since a copy is linear, it will also cost proportionally
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/PropertyAccessPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/PropertyAccessPerfTest.java
index 2ac56be..1f20cae 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/PropertyAccessPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/PropertyAccessPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -33,7 +33,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public final class PropertyAccessPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private View mView = new View();
     private Method mSetX;
@@ -50,7 +50,7 @@
 
     @Test
     public void timeDirectSetter() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mView.mSetX(0.1f);
         }
@@ -58,7 +58,7 @@
 
     @Test
     public void timeDirectFieldSet() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mView.mX = 0.1f;
         }
@@ -66,7 +66,7 @@
 
     @Test
     public void timeDirectSetterAndBomXing() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Float value = 0.1f;
             mView.mSetX(value);
@@ -75,7 +75,7 @@
 
     @Test
     public void timeDirectFieldSetAndBomXing() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Float value = 0.1f;
             mView.mX = value;
@@ -84,7 +84,7 @@
 
     @Test
     public void timeReflectionSetterAndTwoBomXes() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mSetX.invoke(mView, 0.1f);
         }
@@ -92,7 +92,7 @@
 
     @Test
     public void timeReflectionSetterAndOneBomX() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mArgsBomX[0] = 0.1f;
             mSetX.invoke(mView, mArgsBomX);
@@ -101,7 +101,7 @@
 
     @Test
     public void timeReflectionFieldSet() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mX.setFloat(mView, 0.1f);
         }
@@ -109,7 +109,7 @@
 
     @Test
     public void timeGeneratedSetter() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mGeneratedSetter.setFloat(mView, 0.1f);
         }
@@ -117,7 +117,7 @@
 
     @Test
     public void timeGeneratedFieldSet() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mGeneratedField.setFloat(mView, 0.1f);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/ProviderPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/ProviderPerfTest.java
index 7ad0141..0c16265 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/ProviderPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/ProviderPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -34,11 +34,11 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class ProviderPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeStableProviders() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Cipher c = Cipher.getInstance("RSA");
         }
@@ -46,7 +46,7 @@
 
     @Test
     public void timeWithNewProvider() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Security.addProvider(new MockProvider());
             try {
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/RandomPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/RandomPerfTest.java
index c7b6cb5..5f1bfc2 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/RandomPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/RandomPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -32,11 +32,11 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class RandomPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeNewRandom() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Random rng = new Random();
             rng.nextInt();
@@ -46,7 +46,7 @@
     @Test
     public void timeReusedRandom() throws Exception {
         Random rng = new Random();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             rng.nextInt();
         }
@@ -55,7 +55,7 @@
     @Test
     public void timeReusedSecureRandom() throws Exception {
         SecureRandom rng = new SecureRandom();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             rng.nextInt();
         }
@@ -63,7 +63,7 @@
 
     @Test
     public void timeNewSecureRandom() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             SecureRandom rng = new SecureRandom();
             rng.nextInt();
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/RealToStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/RealToStringPerfTest.java
index 44e5f22..008c94c 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/RealToStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/RealToStringPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -29,7 +29,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class RealToStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private static final float SMALL = -123.45f;
     private static final float MEDIUM = -123.45e8f;
@@ -37,7 +37,7 @@
 
     @Test
     public void timeFloat_toString_NaN() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Float.toString(Float.NaN);
         }
@@ -45,7 +45,7 @@
 
     @Test
     public void timeFloat_toString_NEGATIVE_INFINITY() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Float.toString(Float.NEGATIVE_INFINITY);
         }
@@ -53,7 +53,7 @@
 
     @Test
     public void timeFloat_toString_POSITIVE_INFINITY() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Float.toString(Float.POSITIVE_INFINITY);
         }
@@ -61,7 +61,7 @@
 
     @Test
     public void timeFloat_toString_zero() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Float.toString(0.0f);
         }
@@ -69,7 +69,7 @@
 
     @Test
     public void timeFloat_toString_minusZero() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Float.toString(-0.0f);
         }
@@ -77,7 +77,7 @@
 
     @Test
     public void timeFloat_toString_small() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Float.toString(SMALL);
         }
@@ -85,7 +85,7 @@
 
     @Test
     public void timeFloat_toString_medium() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Float.toString(MEDIUM);
         }
@@ -93,7 +93,7 @@
 
     @Test
     public void timeFloat_toString_large() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Float.toString(LARGE);
         }
@@ -101,7 +101,7 @@
 
     @Test
     public void timeStringBuilder_small() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             new StringBuilder().append(SMALL);
         }
@@ -109,7 +109,7 @@
 
     @Test
     public void timeStringBuilder_medium() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             new StringBuilder().append(MEDIUM);
         }
@@ -117,7 +117,7 @@
 
     @Test
     public void timeStringBuilder_large() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             new StringBuilder().append(LARGE);
         }
@@ -125,7 +125,7 @@
 
     @Test
     public void timeFormatter_small() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             String.format("%f", SMALL);
         }
@@ -133,7 +133,7 @@
 
     @Test
     public void timeFormatter_medium() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             String.format("%f", MEDIUM);
         }
@@ -141,7 +141,7 @@
 
     @Test
     public void timeFormatter_large() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             String.format("%f", LARGE);
         }
@@ -149,7 +149,7 @@
 
     @Test
     public void timeFormatter_dot2f_small() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             String.format("%.2f", SMALL);
         }
@@ -157,7 +157,7 @@
 
     @Test
     public void timeFormatter_dot2f_medium() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             String.format("%.2f", MEDIUM);
         }
@@ -165,7 +165,7 @@
 
     @Test
     public void timeFormatter_dot2f_large() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             String.format("%.2f", LARGE);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/ReflectionPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/ReflectionPerfTest.java
index 6e00b1083..45b623d 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/ReflectionPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/ReflectionPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -33,12 +33,12 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class ReflectionPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeObject_getClass() throws Exception {
         C c = new C();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             c.getClass();
         }
@@ -47,7 +47,7 @@
     @Test
     public void timeClass_getField() throws Exception {
         Class<?> klass = C.class;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             klass.getField("f");
         }
@@ -56,7 +56,7 @@
     @Test
     public void timeClass_getDeclaredField() throws Exception {
         Class<?> klass = C.class;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             klass.getDeclaredField("f");
         }
@@ -65,7 +65,7 @@
     @Test
     public void timeClass_getConstructor() throws Exception {
         Class<?> klass = C.class;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             klass.getConstructor();
         }
@@ -75,7 +75,7 @@
     public void timeClass_newInstance() throws Exception {
         Class<?> klass = C.class;
         Constructor constructor = klass.getConstructor();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             constructor.newInstance();
         }
@@ -84,7 +84,7 @@
     @Test
     public void timeClass_getMethod() throws Exception {
         Class<?> klass = C.class;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             klass.getMethod("m");
         }
@@ -93,7 +93,7 @@
     @Test
     public void timeClass_getDeclaredMethod() throws Exception {
         Class<?> klass = C.class;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             klass.getDeclaredMethod("m");
         }
@@ -104,7 +104,7 @@
         Class<?> klass = C.class;
         Field f = klass.getDeclaredField("f");
         C instance = new C();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             f.setInt(instance, 1);
         }
@@ -115,7 +115,7 @@
         Class<?> klass = C.class;
         Field f = klass.getDeclaredField("f");
         C instance = new C();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             f.getInt(instance);
         }
@@ -126,7 +126,7 @@
         Class<?> klass = C.class;
         Method m = klass.getDeclaredMethod("m");
         C instance = new C();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             m.invoke(instance);
         }
@@ -136,7 +136,7 @@
     public void timeMethod_invokeStaticV() throws Exception {
         Class<?> klass = C.class;
         Method m = klass.getDeclaredMethod("sm");
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             m.invoke(null);
         }
@@ -147,7 +147,7 @@
         Class<?> klass = C.class;
         Method m = klass.getDeclaredMethod("setField", int.class);
         C instance = new C();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             m.invoke(instance, 1);
         }
@@ -159,7 +159,7 @@
         Method m = klass.getDeclaredMethod("setField", int.class);
         C instance = new C();
         Integer one = Integer.valueOf(1);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             m.invoke(instance, one);
         }
@@ -169,7 +169,7 @@
     public void timeMethod_invokeStaticI() throws Exception {
         Class<?> klass = C.class;
         Method m = klass.getDeclaredMethod("setStaticField", int.class);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             m.invoke(null, 1);
         }
@@ -180,7 +180,7 @@
         Class<?> klass = C.class;
         Method m = klass.getDeclaredMethod("setStaticField", int.class);
         Integer one = Integer.valueOf(1);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             m.invoke(null, one);
         }
@@ -189,7 +189,7 @@
     @Test
     public void timeRegularMethodInvocation() throws Exception {
         C instance = new C();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             instance.setField(1);
         }
@@ -197,7 +197,7 @@
 
     @Test
     public void timeRegularConstructor() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             new C();
         }
@@ -206,7 +206,7 @@
     @Test
     public void timeClass_classNewInstance() throws Exception {
         Class<?> klass = C.class;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             klass.newInstance();
         }
@@ -216,7 +216,7 @@
     public void timeClass_isInstance() throws Exception {
         D d = new D();
         Class<?> klass = IC.class;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             klass.isInstance(d);
         }
@@ -224,7 +224,7 @@
 
     @Test
     public void timeGetInstanceField() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             // TODO: Write a test script that generates both the classes we're
             // reflecting on and the test case for each of its fields.
@@ -234,7 +234,7 @@
 
     @Test
     public void timeGetStaticField() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             R.class.getField("WEEK_NUMBER_COLOR");
         }
@@ -242,7 +242,7 @@
 
     @Test
     public void timeGetInterfaceStaticField() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             F.class.getField("SF");
         }
@@ -250,7 +250,7 @@
 
     @Test
     public void timeGetSuperClassField() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             G.class.getField("f");
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/SSLLoopbackPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/SSLLoopbackPerfTest.java
index 5a9b5c3..da69f9f 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/SSLLoopbackPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/SSLLoopbackPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -35,11 +35,11 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class SSLLoopbackPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void time() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             TestSSLContext context =
                     TestSSLContext.create(TestKeyStore.getClient(), TestKeyStore.getServer());
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/SSLSocketFactoryPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/SSLSocketFactoryPerfTest.java
index 6d48cf2..9f2c312 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/SSLSocketFactoryPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/SSLSocketFactoryPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -31,11 +31,11 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class SSLSocketFactoryPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void time() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             SSLSocketFactory.getDefault();
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/SchemePrefixPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/SchemePrefixPerfTest.java
index 8641629..7c60c05 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/SchemePrefixPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/SchemePrefixPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -37,7 +37,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public final class SchemePrefixPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     enum Strategy {
         JAVA() {
@@ -94,7 +94,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeSchemePrefix(Strategy strategy) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             strategy.execute("http://android.com");
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/SerializationPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/SerializationPerfTest.java
index afd1191..1812983 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/SerializationPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/SerializationPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -37,7 +37,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class SerializationPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private static byte[] bytes(Object o) throws Exception {
         ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
@@ -110,7 +110,7 @@
     public void timeWriteNoObjects() throws Exception {
         ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
         ObjectOutputStream out = new ObjectOutputStream(baos);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             out.reset();
             baos.reset();
@@ -121,7 +121,7 @@
     private void readSingleObject(Object object) throws Exception {
         byte[] bytes = bytes(object);
         ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             ObjectInputStream in = new ObjectInputStream(bais);
             in.readObject();
@@ -133,7 +133,7 @@
     private void writeSingleObject(Object o) throws Exception {
         ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
         ObjectOutputStream out = new ObjectOutputStream(baos);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             out.writeObject(o);
             out.reset();
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/SignaturePerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/SignaturePerfTest.java
index 6c26133..34e9bfb 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/SignaturePerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/SignaturePerfTest.java
@@ -15,8 +15,8 @@
  */
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -41,7 +41,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class SignaturePerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     public static Collection<Object[]> getData() {
         return Arrays.asList(
@@ -117,7 +117,7 @@
     @Parameters(method = "getData")
     public void timeSign(Algorithm algorithm, Implementation implementation) throws Exception {
         setUp(algorithm);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Signature signer;
             switch (implementation) {
@@ -140,7 +140,7 @@
     @Parameters(method = "getData")
     public void timeVerify(Algorithm algorithm, Implementation implementation) throws Exception {
         setUp(algorithm);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Signature verifier;
             switch (implementation) {
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/SimpleDateFormatPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/SimpleDateFormatPerfTest.java
index 274b51f..2fe6798 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/SimpleDateFormatPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/SimpleDateFormatPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -37,11 +37,11 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class SimpleDateFormatPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void time_createFormatWithTimeZone() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             SimpleDateFormat sdf = new SimpleDateFormat("yyyy.MM.dd z");
         }
@@ -50,7 +50,7 @@
     @Test
     public void time_parseWithTimeZoneShort() throws ParseException {
         SimpleDateFormat sdf = new SimpleDateFormat("yyyy.MM.dd z");
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             sdf.parse("2000.01.01 PST");
         }
@@ -59,7 +59,7 @@
     @Test
     public void time_parseWithTimeZoneLong() throws ParseException {
         SimpleDateFormat sdf = new SimpleDateFormat("yyyy.MM.dd zzzz");
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             sdf.parse("2000.01.01 Pacific Standard Time");
         }
@@ -68,7 +68,7 @@
     @Test
     public void time_parseWithoutTimeZone() throws ParseException {
         SimpleDateFormat sdf = new SimpleDateFormat("yyyy.MM.dd");
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             sdf.parse("2000.01.01");
         }
@@ -76,7 +76,7 @@
 
     @Test
     public void time_createAndParseWithTimeZoneShort() throws ParseException {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             SimpleDateFormat sdf = new SimpleDateFormat("yyyy.MM.dd z");
             sdf.parse("2000.01.01 PST");
@@ -85,7 +85,7 @@
 
     @Test
     public void time_createAndParseWithTimeZoneLong() throws ParseException {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             SimpleDateFormat sdf = new SimpleDateFormat("yyyy.MM.dd zzzz");
             sdf.parse("2000.01.01 Pacific Standard Time");
@@ -95,7 +95,7 @@
     @Test
     public void time_formatWithTimeZoneShort() {
         SimpleDateFormat sdf = new SimpleDateFormat("yyyy.MM.dd z");
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             sdf.format(new Date());
         }
@@ -104,7 +104,7 @@
     @Test
     public void time_formatWithTimeZoneLong() {
         SimpleDateFormat sdf = new SimpleDateFormat("yyyy.MM.dd zzzz");
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             sdf.format(new Date());
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/StrictMathPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/StrictMathPerfTest.java
index b4c427b..fbe3cef 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/StrictMathPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/StrictMathPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -33,7 +33,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class StrictMathPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private final double mDouble = 1.2;
     private final float mFloat = 1.2f;
@@ -74,7 +74,7 @@
 
     @Test
     public void timeAbsD() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.abs(mDouble);
         }
@@ -82,7 +82,7 @@
 
     @Test
     public void timeAbsF() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.abs(mFloat);
         }
@@ -90,7 +90,7 @@
 
     @Test
     public void timeAbsI() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.abs(mInt);
         }
@@ -98,7 +98,7 @@
 
     @Test
     public void timeAbsL() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.abs(mLong);
         }
@@ -106,7 +106,7 @@
 
     @Test
     public void timeAcos() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.acos(mDouble);
         }
@@ -114,7 +114,7 @@
 
     @Test
     public void timeAsin() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.asin(mDouble);
         }
@@ -122,7 +122,7 @@
 
     @Test
     public void timeAtan() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.atan(mDouble);
         }
@@ -130,7 +130,7 @@
 
     @Test
     public void timeAtan2() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.atan2(3, 4);
         }
@@ -138,7 +138,7 @@
 
     @Test
     public void timeCbrt() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.cbrt(mDouble);
         }
@@ -146,7 +146,7 @@
 
     @Test
     public void timeCeilOverInterestingValues() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < CEIL_DOUBLES.length; ++i) {
                 StrictMath.ceil(CEIL_DOUBLES[i]);
@@ -156,7 +156,7 @@
 
     @Test
     public void timeCopySignD() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.copySign(mDouble, mDouble);
         }
@@ -164,7 +164,7 @@
 
     @Test
     public void timeCopySignF() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.copySign(mFloat, mFloat);
         }
@@ -172,7 +172,7 @@
 
     @Test
     public void timeCos() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.cos(mDouble);
         }
@@ -180,7 +180,7 @@
 
     @Test
     public void timeCosh() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.cosh(mDouble);
         }
@@ -188,7 +188,7 @@
 
     @Test
     public void timeExp() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.exp(mDouble);
         }
@@ -196,7 +196,7 @@
 
     @Test
     public void timeExpm1() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.expm1(mDouble);
         }
@@ -204,7 +204,7 @@
 
     @Test
     public void timeFloorOverInterestingValues() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < FLOOR_DOUBLES.length; ++i) {
                 StrictMath.floor(FLOOR_DOUBLES[i]);
@@ -214,7 +214,7 @@
 
     @Test
     public void timeGetExponentD() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.getExponent(mDouble);
         }
@@ -222,7 +222,7 @@
 
     @Test
     public void timeGetExponentF() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.getExponent(mFloat);
         }
@@ -230,7 +230,7 @@
 
     @Test
     public void timeHypot() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.hypot(mDouble, mDouble);
         }
@@ -238,7 +238,7 @@
 
     @Test
     public void timeIEEEremainder() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.IEEEremainder(mDouble, mDouble);
         }
@@ -246,7 +246,7 @@
 
     @Test
     public void timeLog() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.log(mDouble);
         }
@@ -254,7 +254,7 @@
 
     @Test
     public void timeLog10() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.log10(mDouble);
         }
@@ -262,7 +262,7 @@
 
     @Test
     public void timeLog1p() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.log1p(mDouble);
         }
@@ -270,7 +270,7 @@
 
     @Test
     public void timeMaxD() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.max(mDouble, mDouble);
         }
@@ -278,7 +278,7 @@
 
     @Test
     public void timeMaxF() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.max(mFloat, mFloat);
         }
@@ -286,7 +286,7 @@
 
     @Test
     public void timeMaxI() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.max(mInt, mInt);
         }
@@ -294,7 +294,7 @@
 
     @Test
     public void timeMaxL() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.max(mLong, mLong);
         }
@@ -302,7 +302,7 @@
 
     @Test
     public void timeMinD() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.min(mDouble, mDouble);
         }
@@ -310,7 +310,7 @@
 
     @Test
     public void timeMinF() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.min(mFloat, mFloat);
         }
@@ -318,7 +318,7 @@
 
     @Test
     public void timeMinI() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.min(mInt, mInt);
         }
@@ -326,7 +326,7 @@
 
     @Test
     public void timeMinL() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.min(mLong, mLong);
         }
@@ -334,7 +334,7 @@
 
     @Test
     public void timeNextAfterD() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.nextAfter(mDouble, mDouble);
         }
@@ -342,7 +342,7 @@
 
     @Test
     public void timeNextAfterF() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.nextAfter(mFloat, mFloat);
         }
@@ -350,7 +350,7 @@
 
     @Test
     public void timeNextUpD() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.nextUp(mDouble);
         }
@@ -358,7 +358,7 @@
 
     @Test
     public void timeNextUpF() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.nextUp(mFloat);
         }
@@ -366,7 +366,7 @@
 
     @Test
     public void timePow() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.pow(mDouble, mDouble);
         }
@@ -374,7 +374,7 @@
 
     @Test
     public void timeRandom() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.random();
         }
@@ -382,7 +382,7 @@
 
     @Test
     public void timeRint() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.rint(mDouble);
         }
@@ -390,7 +390,7 @@
 
     @Test
     public void timeRoundD() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.round(mDouble);
         }
@@ -398,7 +398,7 @@
 
     @Test
     public void timeRoundF() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.round(mFloat);
         }
@@ -406,7 +406,7 @@
 
     @Test
     public void timeScalbD() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.scalb(mDouble, 5);
         }
@@ -414,7 +414,7 @@
 
     @Test
     public void timeScalbF() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.scalb(mFloat, 5);
         }
@@ -422,7 +422,7 @@
 
     @Test
     public void timeSignumD() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.signum(mDouble);
         }
@@ -430,7 +430,7 @@
 
     @Test
     public void timeSignumF() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.signum(mFloat);
         }
@@ -438,7 +438,7 @@
 
     @Test
     public void timeSin() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.sin(mDouble);
         }
@@ -446,7 +446,7 @@
 
     @Test
     public void timeSinh() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.sinh(mDouble);
         }
@@ -454,7 +454,7 @@
 
     @Test
     public void timeSqrt() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.sqrt(mDouble);
         }
@@ -462,7 +462,7 @@
 
     @Test
     public void timeTan() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.tan(mDouble);
         }
@@ -470,7 +470,7 @@
 
     @Test
     public void timeTanh() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.tanh(mDouble);
         }
@@ -478,7 +478,7 @@
 
     @Test
     public void timeToDegrees() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.toDegrees(mDouble);
         }
@@ -486,7 +486,7 @@
 
     @Test
     public void timeToRadians() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.toRadians(mDouble);
         }
@@ -494,7 +494,7 @@
 
     @Test
     public void timeUlpD() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.ulp(mDouble);
         }
@@ -502,7 +502,7 @@
 
     @Test
     public void timeUlpF() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StrictMath.ulp(mFloat);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/StringBuilderPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/StringBuilderPerfTest.java
index 2235cc5..0155154 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/StringBuilderPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/StringBuilderPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -30,13 +30,13 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class StringBuilderPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     public int mLength = 100;
 
     @Test
     public void timeAppendBoolean() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StringBuilder sb = new StringBuilder();
             for (int j = 0; j < mLength; ++j) {
@@ -47,7 +47,7 @@
 
     @Test
     public void timeAppendChar() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StringBuilder sb = new StringBuilder();
             for (int j = 0; j < mLength; ++j) {
@@ -59,7 +59,7 @@
     @Test
     public void timeAppendCharArray() {
         char[] chars = "chars".toCharArray();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StringBuilder sb = new StringBuilder();
             for (int j = 0; j < mLength; ++j) {
@@ -71,7 +71,7 @@
     @Test
     public void timeAppendCharSequence() {
         CharSequence cs = "chars";
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StringBuilder sb = new StringBuilder();
             for (int j = 0; j < mLength; ++j) {
@@ -83,7 +83,7 @@
     @Test
     public void timeAppendSubCharSequence() {
         CharSequence cs = "chars";
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StringBuilder sb = new StringBuilder();
             for (int j = 0; j < mLength; ++j) {
@@ -95,7 +95,7 @@
     @Test
     public void timeAppendDouble() {
         double d = 1.2;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StringBuilder sb = new StringBuilder();
             for (int j = 0; j < mLength; ++j) {
@@ -107,7 +107,7 @@
     @Test
     public void timeAppendFloat() {
         float f = 1.2f;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StringBuilder sb = new StringBuilder();
             for (int j = 0; j < mLength; ++j) {
@@ -119,7 +119,7 @@
     @Test
     public void timeAppendInt() {
         int n = 123;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StringBuilder sb = new StringBuilder();
             for (int j = 0; j < mLength; ++j) {
@@ -131,7 +131,7 @@
     @Test
     public void timeAppendLong() {
         long l = 123;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StringBuilder sb = new StringBuilder();
             for (int j = 0; j < mLength; ++j) {
@@ -150,7 +150,7 @@
                         return "constant";
                     }
                 };
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StringBuilder sb = new StringBuilder();
             for (int j = 0; j < mLength; ++j) {
@@ -162,7 +162,7 @@
     @Test
     public void timeAppendString() {
         String s = "chars";
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             StringBuilder sb = new StringBuilder();
             for (int j = 0; j < mLength; ++j) {
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/StringEqualsPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/StringEqualsPerfTest.java
index 9ab5000..5533745 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/StringEqualsPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/StringEqualsPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -38,7 +38,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class StringEqualsPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private final String mLong1 =
             "Ahead-of-time compilation is possible as the compiler may just convert an instruction"
@@ -226,7 +226,7 @@
     // Benchmark cases of String.equals(null)
     @Test
     public void timeEqualsNull() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < mMediumStrings.length; i++) {
                 mMediumStrings[i][0].equals(null);
@@ -237,7 +237,7 @@
     // Benchmark cases with very short (<5 character) Strings
     @Test
     public void timeEqualsShort() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < mShortStrings.length; i++) {
                 mShortStrings[i][0].equals(mShortStrings[i][1]);
@@ -248,7 +248,7 @@
     // Benchmark cases with medium length (10-15 character) Strings
     @Test
     public void timeEqualsMedium() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < mMediumStrings.length; i++) {
                 mMediumStrings[i][0].equals(mMediumStrings[i][1]);
@@ -259,7 +259,7 @@
     // Benchmark cases with long (>100 character) Strings
     @Test
     public void timeEqualsLong() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < mLongStrings.length; i++) {
                 mLongStrings[i][0].equals(mLongStrings[i][1]);
@@ -270,7 +270,7 @@
     // Benchmark cases with very long (>1000 character) Strings
     @Test
     public void timeEqualsVeryLong() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < mVeryLongStrings.length; i++) {
                 mVeryLongStrings[i][0].equals(mVeryLongStrings[i][1]);
@@ -281,7 +281,7 @@
     // Benchmark cases with non-word aligned Strings
     @Test
     public void timeEqualsNonWordAligned() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < mNonalignedStrings.length; i++) {
                 mNonalignedStrings[i][0].equals(mNonalignedStrings[i][1]);
@@ -292,7 +292,7 @@
     // Benchmark cases with slight differences in the endings
     @Test
     public void timeEqualsEnd() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < mEndStrings.length; i++) {
                 mEndStrings[i][0].equals(mEndStrings[i][1]);
@@ -303,7 +303,7 @@
     // Benchmark cases of comparing a string to a non-string object
     @Test
     public void timeEqualsNonString() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             for (int i = 0; i < mMediumStrings.length; i++) {
                 mMediumStrings[i][0].equals(mObjects[i]);
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/StringIsEmptyPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/StringIsEmptyPerfTest.java
index b1e749c..a5662b0 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/StringIsEmptyPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/StringIsEmptyPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -29,12 +29,12 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class StringIsEmptyPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeIsEmpty_NonEmpty() {
         boolean result = true;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result &= !("xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx".isEmpty());
         }
@@ -44,7 +44,7 @@
     @Test
     public void timeIsEmpty_Empty() {
         boolean result = true;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result &= ("".isEmpty());
         }
@@ -54,7 +54,7 @@
     @Test
     public void timeLengthEqualsZero() {
         boolean result = true;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result &= !("xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx".length() == 0);
         }
@@ -64,7 +64,7 @@
     @Test
     public void timeEqualsEmpty() {
         boolean result = true;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             result &= !"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx".equals("");
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/StringLengthPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/StringLengthPerfTest.java
index 9e57591..41e64f2 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/StringLengthPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/StringLengthPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -29,12 +29,12 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class StringLengthPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeLength() {
         int length = 0;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             length = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx".length();
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/StringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/StringPerfTest.java
index a80514c..2cd2a09 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/StringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/StringPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -34,7 +34,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class StringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     enum StringLengths {
         EMPTY(""),
@@ -69,7 +69,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeHashCode(StringLengths stringLengths) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             stringLengths.mValue.hashCode();
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/StringReplaceAllPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/StringReplaceAllPerfTest.java
index 78ae395..219dccf 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/StringReplaceAllPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/StringReplaceAllPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -34,7 +34,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class StringReplaceAllPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     // NOTE: These estimates of MOVEABLE / NON_MOVEABLE are based on a knowledge of
     // ART implementation details. They make a difference here because JNI calls related
@@ -86,7 +86,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeReplaceAllTrivialPatternNonExistent(StringLengths stringLengths) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             stringLengths.mValue.replaceAll("fish", "0");
         }
@@ -95,7 +95,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeReplaceTrivialPatternAllRepeated(StringLengths stringLengths) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             stringLengths.mValue.replaceAll("jklm", "0");
         }
@@ -104,7 +104,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeReplaceAllTrivialPatternSingleOccurrence(StringLengths stringLengths) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             stringLengths.mValue.replaceAll("qrst", "0");
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/StringReplacePerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/StringReplacePerfTest.java
index 73911c7..d6fef5e 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/StringReplacePerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/StringReplacePerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -34,7 +34,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class StringReplacePerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     enum StringLengths {
         EMPTY(""),
@@ -80,7 +80,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeReplaceCharNonExistent(StringLengths stringLengths) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             stringLengths.mValue.replace('z', '0');
         }
@@ -89,7 +89,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeReplaceCharRepeated(StringLengths stringLengths) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             stringLengths.mValue.replace('a', '0');
         }
@@ -98,7 +98,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeReplaceSingleChar(StringLengths stringLengths) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             stringLengths.mValue.replace('q', '0');
         }
@@ -107,7 +107,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeReplaceSequenceNonExistent(StringLengths stringLengths) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             stringLengths.mValue.replace("fish", "0");
         }
@@ -116,7 +116,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeReplaceSequenceRepeated(StringLengths stringLengths) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             stringLengths.mValue.replace("jklm", "0");
         }
@@ -125,7 +125,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeReplaceSingleSequence(StringLengths stringLengths) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             stringLengths.mValue.replace("qrst", "0");
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/StringSplitPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/StringSplitPerfTest.java
index 1539271..9d0ec2f 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/StringSplitPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/StringSplitPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -31,11 +31,11 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class StringSplitPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeStringSplitComma() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             "this,is,a,simple,example".split(",");
         }
@@ -43,7 +43,7 @@
 
     @Test
     public void timeStringSplitLiteralDot() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             "this.is.a.simple.example".split("\\.");
         }
@@ -51,7 +51,7 @@
 
     @Test
     public void timeStringSplitNewline() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             "this\nis\na\nsimple\nexample\n".split("\n");
         }
@@ -60,7 +60,7 @@
     @Test
     public void timePatternSplitComma() {
         Pattern p = Pattern.compile(",");
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             p.split("this,is,a,simple,example");
         }
@@ -69,7 +69,7 @@
     @Test
     public void timePatternSplitLiteralDot() {
         Pattern p = Pattern.compile("\\.");
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             p.split("this.is.a.simple.example");
         }
@@ -77,7 +77,7 @@
 
     @Test
     public void timeStringSplitHard() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             "this,is,a,harder,example".split("[,]");
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/StringToBytesPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/StringToBytesPerfTest.java
index 0d5e62b..11950b7 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/StringToBytesPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/StringToBytesPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -35,7 +35,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class StringToBytesPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     enum StringLengths {
         EMPTY(""),
@@ -89,7 +89,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeGetBytesUtf8(StringLengths stringLengths) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             stringLengths.mValue.getBytes(StandardCharsets.UTF_8);
         }
@@ -98,7 +98,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeGetBytesIso88591(StringLengths stringLengths) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             stringLengths.mValue.getBytes(StandardCharsets.ISO_8859_1);
         }
@@ -107,7 +107,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeGetBytesAscii(StringLengths stringLengths) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             stringLengths.mValue.getBytes(StandardCharsets.US_ASCII);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/StringToRealPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/StringToRealPerfTest.java
index ecdf809..4b27a16 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/StringToRealPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/StringToRealPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -34,7 +34,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public class StringToRealPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     public static Collection<Object[]> getData() {
         return Arrays.asList(
@@ -53,7 +53,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeFloat_parseFloat(String string) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Float.parseFloat(string);
         }
@@ -62,7 +62,7 @@
     @Test
     @Parameters(method = "getData")
     public void timeDouble_parseDouble(String string) {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             Double.parseDouble(string);
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/ThreadLocalPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/ThreadLocalPerfTest.java
index 2b2a6b5..0ab012d 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/ThreadLocalPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/ThreadLocalPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -29,7 +29,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class ThreadLocalPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     private static final ThreadLocal<char[]> BUFFER =
             new ThreadLocal<char[]>() {
@@ -41,7 +41,7 @@
 
     @Test
     public void timeThreadLocal_get() {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             BUFFER.get();
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/TimeZonePerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/TimeZonePerfTest.java
index 6eb8fcc..ddf410e 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/TimeZonePerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/TimeZonePerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -31,11 +31,11 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class TimeZonePerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     @Test
     public void timeTimeZone_getDefault() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             TimeZone.getDefault();
         }
@@ -43,7 +43,7 @@
 
     @Test
     public void timeTimeZone_getTimeZoneUTC() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             TimeZone.getTimeZone("UTC");
         }
@@ -52,7 +52,7 @@
     @Test
     public void timeTimeZone_getTimeZone_default() throws Exception {
         String defaultId = TimeZone.getDefault().getID();
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             TimeZone.getTimeZone(defaultId);
         }
@@ -61,7 +61,7 @@
     // A time zone with relatively few transitions.
     @Test
     public void timeTimeZone_getTimeZone_America_Caracas() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             TimeZone.getTimeZone("America/Caracas");
         }
@@ -70,7 +70,7 @@
     // A time zone with a lot of transitions.
     @Test
     public void timeTimeZone_getTimeZone_America_Santiago() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             TimeZone.getTimeZone("America/Santiago");
         }
@@ -78,7 +78,7 @@
 
     @Test
     public void timeTimeZone_getTimeZone_GMT_plus_10() throws Exception {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             TimeZone.getTimeZone("GMT+10");
         }
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/XMLEntitiesPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/XMLEntitiesPerfTest.java
index 288c646..a38763b 100644
--- a/apct-tests/perftests/core/src/android/libcore/regression/XMLEntitiesPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/regression/XMLEntitiesPerfTest.java
@@ -16,8 +16,8 @@
 
 package android.libcore.regression;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 
@@ -42,7 +42,7 @@
 @RunWith(JUnitParamsRunner.class)
 @LargeTest
 public final class XMLEntitiesPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
 
     public static Collection<Object[]> getData() {
         return Arrays.asList(
@@ -85,7 +85,7 @@
     @Parameters(method = "getData")
     public void timeXmlParser(int length, float entityFraction) throws Exception {
         setUp(length, entityFraction);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             XmlPullParser parser = mXmlPullParserFactory.newPullParser();
             parser.setInput(new StringReader(mXml));
@@ -99,7 +99,7 @@
     @Parameters(method = "getData")
     public void timeDocumentBuilder(int length, float entityFraction) throws Exception {
         setUp(length, entityFraction);
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             DocumentBuilder documentBuilder = mDocumentBuilderFactory.newDocumentBuilder();
             documentBuilder.parse(new InputSource(new StringReader(mXml)));
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectGetFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectGetFieldLittleEndianIntPerfTest.java
index 003c957..4076c9d 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectGetFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectGetFieldLittleEndianIntPerfTest.java
@@ -13,25 +13,30 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.VarHandle;
+
 import java.lang.reflect.Field;
 
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class ReflectGetFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     Field mField;
     int mValue;
 
@@ -42,7 +47,7 @@
     @Test
     public void run() throws Throwable {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mField.getInt(this);
             x = (int) mField.getInt(this);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectGetFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectGetFieldLittleEndianStringPerfTest.java
index 4f21618..2c65dd4 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectGetFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectGetFieldLittleEndianStringPerfTest.java
@@ -13,25 +13,30 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.VarHandle;
+
 import java.lang.reflect.Field;
 
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class ReflectGetFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     Field mField;
     String mValue;
 
@@ -42,7 +47,7 @@
     @Test
     public void run() throws Throwable {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mField.get(this);
             x = (String) mField.get(this);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectGetStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectGetStaticFieldLittleEndianIntPerfTest.java
index 210014a..dcd25db 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectGetStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectGetStaticFieldLittleEndianIntPerfTest.java
@@ -13,25 +13,30 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.VarHandle;
+
 import java.lang.reflect.Field;
 
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class ReflectGetStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     Field mField;
     static int sValue;
 
@@ -42,7 +47,7 @@
     @Test
     public void run() throws Throwable {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mField.getInt(null);
             x = (int) mField.getInt(null);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectGetStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectGetStaticFieldLittleEndianStringPerfTest.java
index 22c6827..c938a4c 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectGetStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectGetStaticFieldLittleEndianStringPerfTest.java
@@ -13,25 +13,30 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.VarHandle;
+
 import java.lang.reflect.Field;
 
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class ReflectGetStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     Field mField;
     static String sValue;
 
@@ -42,7 +47,7 @@
     @Test
     public void run() throws Throwable {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mField.get(null);
             x = (String) mField.get(null);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectSetFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectSetFieldLittleEndianIntPerfTest.java
index 5b39109..618e1b5 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectSetFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectSetFieldLittleEndianIntPerfTest.java
@@ -13,25 +13,30 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.VarHandle;
+
 import java.lang.reflect.Field;
 
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class ReflectSetFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     Field mField;
     int mValue;
 
@@ -41,7 +46,7 @@
 
     @Test
     public void run() throws Throwable {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mField.setInt(this, 42);
             mField.setInt(this, 42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectSetFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectSetFieldLittleEndianStringPerfTest.java
index 883e8a7..8c2e3ca 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectSetFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectSetFieldLittleEndianStringPerfTest.java
@@ -13,25 +13,30 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.VarHandle;
+
 import java.lang.reflect.Field;
 
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class ReflectSetFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     Field mField;
     String mValue;
 
@@ -41,7 +46,7 @@
 
     @Test
     public void run() throws Throwable {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mField.set(this, "qwerty");
             mField.set(this, "qwerty");
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectSetStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectSetStaticFieldLittleEndianIntPerfTest.java
index 50bc85c..e888cc68 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectSetStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectSetStaticFieldLittleEndianIntPerfTest.java
@@ -13,25 +13,30 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.VarHandle;
+
 import java.lang.reflect.Field;
 
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class ReflectSetStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     Field mField;
     static int sValue;
 
@@ -41,7 +46,7 @@
 
     @Test
     public void run() throws Throwable {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mField.setInt(null, 42);
             mField.setInt(null, 42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectSetStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectSetStaticFieldLittleEndianStringPerfTest.java
index 13fa2bf..7016611 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectSetStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/ReflectSetStaticFieldLittleEndianStringPerfTest.java
@@ -13,25 +13,30 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.VarHandle;
+
 import java.lang.reflect.Field;
 
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class ReflectSetStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     Field mField;
     static String sValue;
 
@@ -41,7 +46,7 @@
 
     @Test
     public void run() throws Throwable {
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mField.set(null, "qwerty");
             mField.set(null, "qwerty");
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeAcquireFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeAcquireFieldLittleEndianIntPerfTest.java
index 85c9bae9..65c82cc 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeAcquireFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeAcquireFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleCompareandexchangeAcquireFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.compareAndExchangeAcquire(this, mField, ~42);
             x = (int) mVh.compareAndExchangeAcquire(this, mField, 42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeAcquireFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeAcquireFieldLittleEndianStringPerfTest.java
index 2b8f430..a350b61 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeAcquireFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeAcquireFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleCompareandexchangeAcquireFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     String mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.compareAndExchangeAcquire(this, mField, null);
             x = (String) mVh.compareAndExchangeAcquire(this, mField, "qwerty");
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeAcquireStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeAcquireStaticFieldLittleEndianIntPerfTest.java
index 246fa43..34f596e 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeAcquireStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeAcquireStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleCompareandexchangeAcquireStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.compareAndExchangeAcquire(sField, ~42);
             x = (int) mVh.compareAndExchangeAcquire(sField, 42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeAcquireStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeAcquireStaticFieldLittleEndianStringPerfTest.java
index d12ffae..2216d7b 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeAcquireStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeAcquireStaticFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,20 +34,19 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleCompareandexchangeAcquireStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     static String sField = FIELD_VALUE;
     VarHandle mVh;
 
-    public VarHandleCompareandexchangeAcquireStaticFieldLittleEndianStringPerfTest()
-            throws Throwable {
+    public VarHandleCompareandexchangeAcquireStaticFieldLittleEndianStringPerfTest() throws Throwable {
         mVh = MethodHandles.lookup().findStaticVarHandle(this.getClass(), "sField", String.class);
     }
 
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.compareAndExchangeAcquire(sField, null);
             x = (String) mVh.compareAndExchangeAcquire(sField, "qwerty");
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeFieldLittleEndianIntPerfTest.java
index 5ced115..bda551f 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleCompareandexchangeFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.compareAndExchange(this, mField, ~42);
             x = (int) mVh.compareAndExchange(this, mField, 42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeFieldLittleEndianStringPerfTest.java
index b955d50..f4d7893 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleCompareandexchangeFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     String mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.compareAndExchange(this, mField, null);
             x = (String) mVh.compareAndExchange(this, mField, "qwerty");
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeReleaseFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeReleaseFieldLittleEndianIntPerfTest.java
index 601ff34..f438087 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeReleaseFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeReleaseFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleCompareandexchangeReleaseFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.compareAndExchangeRelease(this, mField, ~42);
             x = (int) mVh.compareAndExchangeRelease(this, mField, 42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeReleaseFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeReleaseFieldLittleEndianStringPerfTest.java
index 0e567f9..78df5c0 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeReleaseFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeReleaseFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleCompareandexchangeReleaseFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     String mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.compareAndExchangeRelease(this, mField, null);
             x = (String) mVh.compareAndExchangeRelease(this, mField, "qwerty");
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeReleaseStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeReleaseStaticFieldLittleEndianIntPerfTest.java
index 6be2870..f45cc62 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeReleaseStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeReleaseStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleCompareandexchangeReleaseStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.compareAndExchangeRelease(sField, ~42);
             x = (int) mVh.compareAndExchangeRelease(sField, 42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeReleaseStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeReleaseStaticFieldLittleEndianStringPerfTest.java
index 84c186b..08aa7e2 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeReleaseStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeReleaseStaticFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,20 +34,19 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleCompareandexchangeReleaseStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     static String sField = FIELD_VALUE;
     VarHandle mVh;
 
-    public VarHandleCompareandexchangeReleaseStaticFieldLittleEndianStringPerfTest()
-            throws Throwable {
+    public VarHandleCompareandexchangeReleaseStaticFieldLittleEndianStringPerfTest() throws Throwable {
         mVh = MethodHandles.lookup().findStaticVarHandle(this.getClass(), "sField", String.class);
     }
 
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.compareAndExchangeRelease(sField, null);
             x = (String) mVh.compareAndExchangeRelease(sField, "qwerty");
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeStaticFieldLittleEndianIntPerfTest.java
index b093234..5d4b2e0 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleCompareandexchangeStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.compareAndExchange(sField, ~42);
             x = (int) mVh.compareAndExchange(sField, 42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeStaticFieldLittleEndianStringPerfTest.java
index 0d2037b4..ba4f2c8 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandexchangeStaticFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleCompareandexchangeStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     static String sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.compareAndExchange(sField, null);
             x = (String) mVh.compareAndExchange(sField, "qwerty");
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandsetFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandsetFieldLittleEndianIntPerfTest.java
index ee31973..7fca450 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandsetFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandsetFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleCompareandsetFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         boolean success;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             success = mVh.compareAndSet(this, mField, ~42);
             success = mVh.compareAndSet(this, mField, 42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandsetFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandsetFieldLittleEndianStringPerfTest.java
index 0571fef..7eb7ac0 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandsetFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandsetFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleCompareandsetFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     String mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         boolean success;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             success = mVh.compareAndSet(this, mField, null);
             success = mVh.compareAndSet(this, mField, "qwerty");
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandsetStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandsetStaticFieldLittleEndianIntPerfTest.java
index f619dab..ddfd407 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandsetStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandsetStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleCompareandsetStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         boolean success;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             success = mVh.compareAndSet(sField, ~42);
             success = mVh.compareAndSet(sField, 42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandsetStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandsetStaticFieldLittleEndianStringPerfTest.java
index fc443fa..f1f3968 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandsetStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleCompareandsetStaticFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleCompareandsetStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     static String sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         boolean success;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             success = mVh.compareAndSet(sField, null);
             success = mVh.compareAndSet(sField, "qwerty");
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetAcquireFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetAcquireFieldLittleEndianIntPerfTest.java
index bf3d58b..09127c4 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetAcquireFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetAcquireFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetAcquireFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -53,7 +54,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAcquire(this);
             x = (int) mVh.getAcquire(this);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetAcquireFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetAcquireFieldLittleEndianStringPerfTest.java
index 1f4bc31..87be4a6 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetAcquireFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetAcquireFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetAcquireFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     String mField = FIELD_VALUE;
     VarHandle mVh;
@@ -53,7 +54,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.getAcquire(this);
             x = (String) mVh.getAcquire(this);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetAcquireStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetAcquireStaticFieldLittleEndianIntPerfTest.java
index 2085552..5d5fc11 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetAcquireStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetAcquireStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetAcquireStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -53,7 +54,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAcquire();
             x = (int) mVh.getAcquire();
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetAcquireStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetAcquireStaticFieldLittleEndianStringPerfTest.java
index d9c7d7b..c7034b8 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetAcquireStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetAcquireStaticFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetAcquireStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     static String sField = FIELD_VALUE;
     VarHandle mVh;
@@ -53,7 +54,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.getAcquire();
             x = (String) mVh.getAcquire();
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetArrayLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetArrayLittleEndianIntPerfTest.java
index acd2533..f22865b 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetArrayLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetArrayLittleEndianIntPerfTest.java
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -33,9 +34,9 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetArrayLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int ELEMENT_VALUE = 42;
-    int[] mArray = {ELEMENT_VALUE};
+    int[] mArray = { ELEMENT_VALUE };
     VarHandle mVh;
 
     public VarHandleGetArrayLittleEndianIntPerfTest() throws Throwable {
@@ -54,7 +55,7 @@
     public void run() {
         int[] a = mArray;
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.get(a, 0);
             x = (int) mVh.get(a, 0);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetArrayLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetArrayLittleEndianStringPerfTest.java
index de9944a..fdb9e84 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetArrayLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetArrayLittleEndianStringPerfTest.java
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -33,9 +34,9 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetArrayLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String ELEMENT_VALUE = "qwerty";
-    String[] mArray = {ELEMENT_VALUE};
+    String[] mArray = { ELEMENT_VALUE };
     VarHandle mVh;
 
     public VarHandleGetArrayLittleEndianStringPerfTest() throws Throwable {
@@ -54,7 +55,7 @@
     public void run() {
         String[] a = mArray;
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.get(a, 0);
             x = (String) mVh.get(a, 0);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetByteArrayViewBigEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetByteArrayViewBigEndianIntPerfTest.java
index a863929..347b0cf 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetByteArrayViewBigEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetByteArrayViewBigEndianIntPerfTest.java
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -29,22 +30,22 @@
 
 import java.lang.invoke.MethodHandles;
 import java.lang.invoke.VarHandle;
+
+import java.util.Arrays;
 import java.nio.ByteOrder;
 
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetByteArrayViewBigEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int VALUE = 42;
-    byte[] mArray1 = {
-        (byte) (VALUE >> 24), (byte) (VALUE >> 16), (byte) (VALUE >> 8), (byte) VALUE
-    };
-    byte[] mArray2 = {(byte) (-1 >> 24), (byte) (-1 >> 16), (byte) (-1 >> 8), (byte) VALUE};
+    byte[] mArray1 = { (byte) (VALUE >> 24), (byte) (VALUE >> 16), (byte) (VALUE >> 8), (byte) VALUE };
+    byte[] mArray2 = { (byte) (-1 >> 24), (byte) (-1 >> 16), (byte) (-1 >> 8), (byte) VALUE };
     VarHandle mVh;
 
     public VarHandleGetByteArrayViewBigEndianIntPerfTest() throws Throwable {
         mVh = MethodHandles.byteArrayViewVarHandle(int[].class, ByteOrder.BIG_ENDIAN);
-    }
+  }
 
     @Before
     public void setup() {
@@ -58,7 +59,7 @@
     public void run() {
         byte[] a = mArray1;
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.get(a, 0);
             x = (int) mVh.get(a, 0);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetByteArrayViewLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetByteArrayViewLittleEndianIntPerfTest.java
index 4999b9b..dedc94f 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetByteArrayViewLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetByteArrayViewLittleEndianIntPerfTest.java
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -29,22 +30,22 @@
 
 import java.lang.invoke.MethodHandles;
 import java.lang.invoke.VarHandle;
+
+import java.util.Arrays;
 import java.nio.ByteOrder;
 
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetByteArrayViewLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int VALUE = 42;
-    byte[] mArray1 = {
-        (byte) VALUE, (byte) (VALUE >> 8), (byte) (VALUE >> 16), (byte) (VALUE >> 24)
-    };
-    byte[] mArray2 = {(byte) VALUE, (byte) (-1 >> 8), (byte) (-1 >> 16), (byte) (-1 >> 24)};
+    byte[] mArray1 = { (byte) VALUE, (byte) (VALUE >> 8), (byte) (VALUE >> 16), (byte) (VALUE >> 24) };
+    byte[] mArray2 = { (byte) VALUE, (byte) (-1 >> 8), (byte) (-1 >> 16), (byte) (-1 >> 24) };
     VarHandle mVh;
 
     public VarHandleGetByteArrayViewLittleEndianIntPerfTest() throws Throwable {
         mVh = MethodHandles.byteArrayViewVarHandle(int[].class, ByteOrder.LITTLE_ENDIAN);
-    }
+  }
 
     @Before
     public void setup() {
@@ -58,7 +59,7 @@
     public void run() {
         byte[] a = mArray1;
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.get(a, 0);
             x = (int) mVh.get(a, 0);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetFieldLittleEndianIntPerfTest.java
index ee80a6f..3f0f624 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -53,7 +54,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.get(this);
             x = (int) mVh.get(this);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetFieldLittleEndianStringPerfTest.java
index ec29f7a..9db6328 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     String mField = FIELD_VALUE;
     VarHandle mVh;
@@ -53,7 +54,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.get(this);
             x = (String) mVh.get(this);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetOpaqueFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetOpaqueFieldLittleEndianIntPerfTest.java
index ee6a669..17b74a8 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetOpaqueFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetOpaqueFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetOpaqueFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -53,7 +54,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getOpaque(this);
             x = (int) mVh.getOpaque(this);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetOpaqueFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetOpaqueFieldLittleEndianStringPerfTest.java
index 1702b84..5df1380 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetOpaqueFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetOpaqueFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetOpaqueFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     String mField = FIELD_VALUE;
     VarHandle mVh;
@@ -53,7 +54,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.getOpaque(this);
             x = (String) mVh.getOpaque(this);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetOpaqueStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetOpaqueStaticFieldLittleEndianIntPerfTest.java
index 514ddb9..f656ef2 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetOpaqueStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetOpaqueStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetOpaqueStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -53,7 +54,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getOpaque();
             x = (int) mVh.getOpaque();
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetOpaqueStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetOpaqueStaticFieldLittleEndianStringPerfTest.java
index fbcee69..1087df3 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetOpaqueStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetOpaqueStaticFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetOpaqueStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     static String sField = FIELD_VALUE;
     VarHandle mVh;
@@ -53,7 +54,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.getOpaque();
             x = (String) mVh.getOpaque();
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetStaticFieldLittleEndianIntPerfTest.java
index 2c56588..0043451 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -53,7 +54,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.get();
             x = (int) mVh.get();
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetStaticFieldLittleEndianStringPerfTest.java
index 8fce69e..0162637 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetStaticFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     static String sField = FIELD_VALUE;
     VarHandle mVh;
@@ -53,7 +54,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.get();
             x = (String) mVh.get();
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetVolatileFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetVolatileFieldLittleEndianIntPerfTest.java
index ef530607..b0c4631 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetVolatileFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetVolatileFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetVolatileFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -53,7 +54,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getVolatile(this);
             x = (int) mVh.getVolatile(this);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetVolatileFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetVolatileFieldLittleEndianStringPerfTest.java
index 64c0898..5cbbc08 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetVolatileFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetVolatileFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetVolatileFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     String mField = FIELD_VALUE;
     VarHandle mVh;
@@ -53,7 +54,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.getVolatile(this);
             x = (String) mVh.getVolatile(this);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetVolatileStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetVolatileStaticFieldLittleEndianIntPerfTest.java
index 939100c..368ae69 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetVolatileStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetVolatileStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetVolatileStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -53,7 +54,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getVolatile();
             x = (int) mVh.getVolatile();
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetVolatileStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetVolatileStaticFieldLittleEndianStringPerfTest.java
index 728b199..3387a8d 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetVolatileStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetVolatileStaticFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetVolatileStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     static String sField = FIELD_VALUE;
     VarHandle mVh;
@@ -53,7 +54,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.getVolatile();
             x = (String) mVh.getVolatile();
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddAcquireFieldLittleEndianFloatPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddAcquireFieldLittleEndianFloatPerfTest.java
index bf5ef99..781e04f 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddAcquireFieldLittleEndianFloatPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddAcquireFieldLittleEndianFloatPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandaddAcquireFieldLittleEndianFloatPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final float FIELD_VALUE = 3.14f;
     float mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         float x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (float) mVh.getAndAddAcquire(this, 2.17f);
             x = (float) mVh.getAndAddAcquire(this, 2.17f);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddAcquireFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddAcquireFieldLittleEndianIntPerfTest.java
index d15705e..97f29ba 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddAcquireFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddAcquireFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandaddAcquireFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndAddAcquire(this, ~42);
             x = (int) mVh.getAndAddAcquire(this, ~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddAcquireStaticFieldLittleEndianFloatPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddAcquireStaticFieldLittleEndianFloatPerfTest.java
index 222a60d..e108f7f 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddAcquireStaticFieldLittleEndianFloatPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddAcquireStaticFieldLittleEndianFloatPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandaddAcquireStaticFieldLittleEndianFloatPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final float FIELD_VALUE = 3.14f;
     static float sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         float x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (float) mVh.getAndAddAcquire(2.17f);
             x = (float) mVh.getAndAddAcquire(2.17f);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddAcquireStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddAcquireStaticFieldLittleEndianIntPerfTest.java
index 7436476..d0ae322 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddAcquireStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddAcquireStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandaddAcquireStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndAddAcquire(~42);
             x = (int) mVh.getAndAddAcquire(~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddFieldLittleEndianFloatPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddFieldLittleEndianFloatPerfTest.java
index cca97f4..1b80c40 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddFieldLittleEndianFloatPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddFieldLittleEndianFloatPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandaddFieldLittleEndianFloatPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final float FIELD_VALUE = 3.14f;
     float mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         float x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (float) mVh.getAndAdd(this, 2.17f);
             x = (float) mVh.getAndAdd(this, 2.17f);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddFieldLittleEndianIntPerfTest.java
index 170ee73..edacf181 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandaddFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndAdd(this, ~42);
             x = (int) mVh.getAndAdd(this, ~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddReleaseFieldLittleEndianFloatPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddReleaseFieldLittleEndianFloatPerfTest.java
index 184f796..0e86b0d 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddReleaseFieldLittleEndianFloatPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddReleaseFieldLittleEndianFloatPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandaddReleaseFieldLittleEndianFloatPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final float FIELD_VALUE = 3.14f;
     float mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         float x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (float) mVh.getAndAddRelease(this, 2.17f);
             x = (float) mVh.getAndAddRelease(this, 2.17f);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddReleaseFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddReleaseFieldLittleEndianIntPerfTest.java
index 7e75c44..83446ff 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddReleaseFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddReleaseFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandaddReleaseFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndAddRelease(this, ~42);
             x = (int) mVh.getAndAddRelease(this, ~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddReleaseStaticFieldLittleEndianFloatPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddReleaseStaticFieldLittleEndianFloatPerfTest.java
index 39c386b..c1f1e6f 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddReleaseStaticFieldLittleEndianFloatPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddReleaseStaticFieldLittleEndianFloatPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandaddReleaseStaticFieldLittleEndianFloatPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final float FIELD_VALUE = 3.14f;
     static float sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         float x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (float) mVh.getAndAddRelease(2.17f);
             x = (float) mVh.getAndAddRelease(2.17f);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddReleaseStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddReleaseStaticFieldLittleEndianIntPerfTest.java
index 04ab531..1b154a1 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddReleaseStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddReleaseStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandaddReleaseStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndAddRelease(~42);
             x = (int) mVh.getAndAddRelease(~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddStaticFieldLittleEndianFloatPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddStaticFieldLittleEndianFloatPerfTest.java
index b71351f..7de128d 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddStaticFieldLittleEndianFloatPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddStaticFieldLittleEndianFloatPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandaddStaticFieldLittleEndianFloatPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final float FIELD_VALUE = 3.14f;
     static float sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         float x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (float) mVh.getAndAdd(2.17f);
             x = (float) mVh.getAndAdd(2.17f);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddStaticFieldLittleEndianIntPerfTest.java
index e3955c0..c9a0926 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandaddStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandaddStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndAdd(~42);
             x = (int) mVh.getAndAdd(~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndAcquireFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndAcquireFieldLittleEndianIntPerfTest.java
index adf05a6..fd9d9b1 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndAcquireFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndAcquireFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandbitwiseAndAcquireFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndBitwiseAndAcquire(this, ~42);
             x = (int) mVh.getAndBitwiseAndAcquire(this, ~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndAcquireStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndAcquireStaticFieldLittleEndianIntPerfTest.java
index 4d657d9..c3c367f 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndAcquireStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndAcquireStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandbitwiseAndAcquireStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndBitwiseAndAcquire(~42);
             x = (int) mVh.getAndBitwiseAndAcquire(~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndFieldLittleEndianIntPerfTest.java
index dc64174..e073d28 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandbitwiseAndFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndBitwiseAnd(this, ~42);
             x = (int) mVh.getAndBitwiseAnd(this, ~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndReleaseFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndReleaseFieldLittleEndianIntPerfTest.java
index 25d5631..ca78f5a 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndReleaseFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndReleaseFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandbitwiseAndReleaseFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndBitwiseAndRelease(this, ~42);
             x = (int) mVh.getAndBitwiseAndRelease(this, ~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndReleaseStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndReleaseStaticFieldLittleEndianIntPerfTest.java
index de2d548..599f186 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndReleaseStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndReleaseStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandbitwiseAndReleaseStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndBitwiseAndRelease(~42);
             x = (int) mVh.getAndBitwiseAndRelease(~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndStaticFieldLittleEndianIntPerfTest.java
index 36544c6..71fc0ae 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseAndStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandbitwiseAndStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndBitwiseAnd(~42);
             x = (int) mVh.getAndBitwiseAnd(~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrAcquireFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrAcquireFieldLittleEndianIntPerfTest.java
index fb36d0c..8fc4eab 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrAcquireFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrAcquireFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandbitwiseOrAcquireFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndBitwiseOrAcquire(this, ~42);
             x = (int) mVh.getAndBitwiseOrAcquire(this, ~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrAcquireStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrAcquireStaticFieldLittleEndianIntPerfTest.java
index 4194b12..3368953 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrAcquireStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrAcquireStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandbitwiseOrAcquireStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndBitwiseOrAcquire(~42);
             x = (int) mVh.getAndBitwiseOrAcquire(~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrFieldLittleEndianIntPerfTest.java
index 355c6e8..583a3a0 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandbitwiseOrFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndBitwiseOr(this, ~42);
             x = (int) mVh.getAndBitwiseOr(this, ~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrReleaseFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrReleaseFieldLittleEndianIntPerfTest.java
index 401079d..1592fa6 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrReleaseFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrReleaseFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandbitwiseOrReleaseFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndBitwiseOrRelease(this, ~42);
             x = (int) mVh.getAndBitwiseOrRelease(this, ~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrReleaseStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrReleaseStaticFieldLittleEndianIntPerfTest.java
index 322dcbf..d496083 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrReleaseStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrReleaseStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandbitwiseOrReleaseStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndBitwiseOrRelease(~42);
             x = (int) mVh.getAndBitwiseOrRelease(~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrStaticFieldLittleEndianIntPerfTest.java
index c982814..87276a5 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseOrStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandbitwiseOrStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndBitwiseOr(~42);
             x = (int) mVh.getAndBitwiseOr(~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorAcquireFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorAcquireFieldLittleEndianIntPerfTest.java
index 0b1cb32..f7a372f 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorAcquireFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorAcquireFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandbitwiseXorAcquireFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndBitwiseXorAcquire(this, ~42);
             x = (int) mVh.getAndBitwiseXorAcquire(this, ~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorAcquireStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorAcquireStaticFieldLittleEndianIntPerfTest.java
index 4737072..22726fc 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorAcquireStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorAcquireStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandbitwiseXorAcquireStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndBitwiseXorAcquire(~42);
             x = (int) mVh.getAndBitwiseXorAcquire(~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorFieldLittleEndianIntPerfTest.java
index 204cd70..d071d6e 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandbitwiseXorFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndBitwiseXor(this, ~42);
             x = (int) mVh.getAndBitwiseXor(this, ~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorReleaseFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorReleaseFieldLittleEndianIntPerfTest.java
index b3ffed7..be2aa9c 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorReleaseFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorReleaseFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandbitwiseXorReleaseFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndBitwiseXorRelease(this, ~42);
             x = (int) mVh.getAndBitwiseXorRelease(this, ~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorReleaseStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorReleaseStaticFieldLittleEndianIntPerfTest.java
index d0ab8de..b0a7dcf 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorReleaseStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorReleaseStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandbitwiseXorReleaseStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndBitwiseXorRelease(~42);
             x = (int) mVh.getAndBitwiseXorRelease(~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorStaticFieldLittleEndianIntPerfTest.java
index b378b68..c5f99de 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandbitwiseXorStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandbitwiseXorStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndBitwiseXor(~42);
             x = (int) mVh.getAndBitwiseXor(~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetAcquireFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetAcquireFieldLittleEndianIntPerfTest.java
index c7c66fe..572e0c8 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetAcquireFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetAcquireFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandsetAcquireFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndSetAcquire(this, ~42);
             x = (int) mVh.getAndSetAcquire(this, ~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetAcquireFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetAcquireFieldLittleEndianStringPerfTest.java
index 98d6bd7..09be6d9 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetAcquireFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetAcquireFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandsetAcquireFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     String mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.getAndSetAcquire(this, null);
             x = (String) mVh.getAndSetAcquire(this, null);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetAcquireStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetAcquireStaticFieldLittleEndianIntPerfTest.java
index 206358f..4e0554a 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetAcquireStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetAcquireStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandsetAcquireStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndSetAcquire(~42);
             x = (int) mVh.getAndSetAcquire(~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetAcquireStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetAcquireStaticFieldLittleEndianStringPerfTest.java
index 0532e73..5491522 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetAcquireStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetAcquireStaticFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandsetAcquireStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     static String sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.getAndSetAcquire(null);
             x = (String) mVh.getAndSetAcquire(null);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetFieldLittleEndianIntPerfTest.java
index f192d71..a9303c6 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandsetFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndSet(this, ~42);
             x = (int) mVh.getAndSet(this, ~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetFieldLittleEndianStringPerfTest.java
index 0a8909c..bd4703f 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandsetFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     String mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.getAndSet(this, null);
             x = (String) mVh.getAndSet(this, null);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetReleaseFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetReleaseFieldLittleEndianIntPerfTest.java
index bfcb0f4..d9aee00 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetReleaseFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetReleaseFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandsetReleaseFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndSetRelease(this, ~42);
             x = (int) mVh.getAndSetRelease(this, ~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetReleaseFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetReleaseFieldLittleEndianStringPerfTest.java
index c6b0509..2c79ca2 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetReleaseFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetReleaseFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandsetReleaseFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     String mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.getAndSetRelease(this, null);
             x = (String) mVh.getAndSetRelease(this, null);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetReleaseStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetReleaseStaticFieldLittleEndianIntPerfTest.java
index 45a01ed..ceff8163 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetReleaseStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetReleaseStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandsetReleaseStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndSetRelease(~42);
             x = (int) mVh.getAndSetRelease(~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetReleaseStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetReleaseStaticFieldLittleEndianStringPerfTest.java
index 3047281..9b83504 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetReleaseStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetReleaseStaticFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandsetReleaseStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     static String sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.getAndSetRelease(null);
             x = (String) mVh.getAndSetRelease(null);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetStaticFieldLittleEndianIntPerfTest.java
index 6f1f1a0..638da6f 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandsetStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (int) mVh.getAndSet(~42);
             x = (int) mVh.getAndSet(~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetStaticFieldLittleEndianStringPerfTest.java
index c4d279f..25d41141 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleGetandsetStaticFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleGetandsetStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     static String sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             x = (String) mVh.getAndSet(null);
             x = (String) mVh.getAndSet(null);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetArrayLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetArrayLittleEndianIntPerfTest.java
index c4f6005..64ea9f3 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetArrayLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetArrayLittleEndianIntPerfTest.java
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -33,9 +34,9 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleSetArrayLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int ELEMENT_VALUE = 42;
-    int[] mArray = {ELEMENT_VALUE};
+    int[] mArray = { ELEMENT_VALUE };
     VarHandle mVh;
 
     public VarHandleSetArrayLittleEndianIntPerfTest() throws Throwable {
@@ -53,7 +54,7 @@
     public void run() {
         int[] a = mArray;
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mVh.set(a, 0, ~42);
             mVh.set(a, 0, ~42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetArrayLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetArrayLittleEndianStringPerfTest.java
index a6858c2..989d682 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetArrayLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetArrayLittleEndianStringPerfTest.java
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -33,9 +34,9 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleSetArrayLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String ELEMENT_VALUE = "qwerty";
-    String[] mArray = {ELEMENT_VALUE};
+    String[] mArray = { ELEMENT_VALUE };
     VarHandle mVh;
 
     public VarHandleSetArrayLittleEndianStringPerfTest() throws Throwable {
@@ -53,7 +54,7 @@
     public void run() {
         String[] a = mArray;
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mVh.set(a, 0, null);
             mVh.set(a, 0, null);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetByteArrayViewBigEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetByteArrayViewBigEndianIntPerfTest.java
index a994cbe..9d6d6b8 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetByteArrayViewBigEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetByteArrayViewBigEndianIntPerfTest.java
@@ -13,59 +13,52 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
 import java.lang.invoke.MethodHandles;
 import java.lang.invoke.VarHandle;
-import java.nio.ByteOrder;
+
 import java.util.Arrays;
+import java.nio.ByteOrder;
 
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleSetByteArrayViewBigEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int VALUE = 42;
-    byte[] mArray1 = {
-        (byte) (VALUE >> 24), (byte) (VALUE >> 16), (byte) (VALUE >> 8), (byte) VALUE
-    };
-    byte[] mArray2 = {(byte) (-1 >> 24), (byte) (-1 >> 16), (byte) (-1 >> 8), (byte) VALUE};
+    byte[] mArray1 = { (byte) (VALUE >> 24), (byte) (VALUE >> 16), (byte) (VALUE >> 8), (byte) VALUE };
+    byte[] mArray2 = { (byte) (-1 >> 24), (byte) (-1 >> 16), (byte) (-1 >> 8), (byte) VALUE };
     VarHandle mVh;
 
     public VarHandleSetByteArrayViewBigEndianIntPerfTest() throws Throwable {
         mVh = MethodHandles.byteArrayViewVarHandle(int[].class, ByteOrder.BIG_ENDIAN);
-    }
+  }
 
     @After
     public void teardown() {
         if (!Arrays.equals(mArray2, mArray1)) {
-            throw new RuntimeException(
-                    "array has unexpected values: "
-                            + mArray2[0]
-                            + " "
-                            + mArray2[1]
-                            + " "
-                            + mArray2[2]
-                            + " "
-                            + mArray2[3]);
+            throw new RuntimeException("array has unexpected values: " +
+                mArray2[0] + " " + mArray2[1] + " " + mArray2[2] + " " + mArray2[3]);
         }
     }
 
     @Test
     public void run() {
         byte[] a = mArray2;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mVh.set(a, 0, VALUE);
             mVh.set(a, 0, VALUE);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetByteArrayViewLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetByteArrayViewLittleEndianIntPerfTest.java
index 65412ec..e8c3fa3 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetByteArrayViewLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetByteArrayViewLittleEndianIntPerfTest.java
@@ -13,59 +13,52 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
 import java.lang.invoke.MethodHandles;
 import java.lang.invoke.VarHandle;
-import java.nio.ByteOrder;
+
 import java.util.Arrays;
+import java.nio.ByteOrder;
 
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleSetByteArrayViewLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int VALUE = 42;
-    byte[] mArray1 = {
-        (byte) VALUE, (byte) (VALUE >> 8), (byte) (VALUE >> 16), (byte) (VALUE >> 24)
-    };
-    byte[] mArray2 = {(byte) VALUE, (byte) (-1 >> 8), (byte) (-1 >> 16), (byte) (-1 >> 24)};
+    byte[] mArray1 = { (byte) VALUE, (byte) (VALUE >> 8), (byte) (VALUE >> 16), (byte) (VALUE >> 24) };
+    byte[] mArray2 = { (byte) VALUE, (byte) (-1 >> 8), (byte) (-1 >> 16), (byte) (-1 >> 24) };
     VarHandle mVh;
 
     public VarHandleSetByteArrayViewLittleEndianIntPerfTest() throws Throwable {
         mVh = MethodHandles.byteArrayViewVarHandle(int[].class, ByteOrder.LITTLE_ENDIAN);
-    }
+  }
 
     @After
     public void teardown() {
         if (!Arrays.equals(mArray2, mArray1)) {
-            throw new RuntimeException(
-                    "array has unexpected values: "
-                            + mArray2[0]
-                            + " "
-                            + mArray2[1]
-                            + " "
-                            + mArray2[2]
-                            + " "
-                            + mArray2[3]);
+            throw new RuntimeException("array has unexpected values: " +
+                mArray2[0] + " " + mArray2[1] + " " + mArray2[2] + " " + mArray2[3]);
         }
     }
 
     @Test
     public void run() {
         byte[] a = mArray2;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mVh.set(a, 0, VALUE);
             mVh.set(a, 0, VALUE);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetFieldLittleEndianIntPerfTest.java
index 573b0ff..08294c0 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetFieldLittleEndianIntPerfTest.java
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleSetFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -52,7 +53,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mVh.set(this, FIELD_VALUE);
             mVh.set(this, FIELD_VALUE);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetFieldLittleEndianStringPerfTest.java
index fe3c0fc..1e8a5bf 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetFieldLittleEndianStringPerfTest.java
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleSetFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     String mField = FIELD_VALUE;
     VarHandle mVh;
@@ -52,7 +53,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mVh.set(this, FIELD_VALUE);
             mVh.set(this, FIELD_VALUE);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetOpaqueFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetOpaqueFieldLittleEndianIntPerfTest.java
index f398899..2e5fb18 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetOpaqueFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetOpaqueFieldLittleEndianIntPerfTest.java
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleSetOpaqueFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -52,7 +53,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mVh.setOpaque(this, FIELD_VALUE);
             mVh.setOpaque(this, FIELD_VALUE);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetOpaqueFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetOpaqueFieldLittleEndianStringPerfTest.java
index 7493120..86a771f 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetOpaqueFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetOpaqueFieldLittleEndianStringPerfTest.java
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleSetOpaqueFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     String mField = FIELD_VALUE;
     VarHandle mVh;
@@ -52,7 +53,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mVh.setOpaque(this, FIELD_VALUE);
             mVh.setOpaque(this, FIELD_VALUE);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetOpaqueStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetOpaqueStaticFieldLittleEndianIntPerfTest.java
index 5e73269..903b310 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetOpaqueStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetOpaqueStaticFieldLittleEndianIntPerfTest.java
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleSetOpaqueStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -52,7 +53,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mVh.setOpaque(FIELD_VALUE);
             mVh.setOpaque(FIELD_VALUE);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetOpaqueStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetOpaqueStaticFieldLittleEndianStringPerfTest.java
index 9a217d1..63cf7d2 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetOpaqueStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetOpaqueStaticFieldLittleEndianStringPerfTest.java
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleSetOpaqueStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     static String sField = FIELD_VALUE;
     VarHandle mVh;
@@ -52,7 +53,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mVh.setOpaque(FIELD_VALUE);
             mVh.setOpaque(FIELD_VALUE);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetReleaseFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetReleaseFieldLittleEndianIntPerfTest.java
index 1ce2270..d1a358d 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetReleaseFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetReleaseFieldLittleEndianIntPerfTest.java
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleSetReleaseFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -52,7 +53,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mVh.setRelease(this, FIELD_VALUE);
             mVh.setRelease(this, FIELD_VALUE);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetReleaseFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetReleaseFieldLittleEndianStringPerfTest.java
index ed84528..b658324 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetReleaseFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetReleaseFieldLittleEndianStringPerfTest.java
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleSetReleaseFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     String mField = FIELD_VALUE;
     VarHandle mVh;
@@ -52,7 +53,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mVh.setRelease(this, FIELD_VALUE);
             mVh.setRelease(this, FIELD_VALUE);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetReleaseStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetReleaseStaticFieldLittleEndianIntPerfTest.java
index aeb9640..47cb779 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetReleaseStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetReleaseStaticFieldLittleEndianIntPerfTest.java
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleSetReleaseStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -52,7 +53,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mVh.setRelease(FIELD_VALUE);
             mVh.setRelease(FIELD_VALUE);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetReleaseStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetReleaseStaticFieldLittleEndianStringPerfTest.java
index 8959a0c..e48374e 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetReleaseStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetReleaseStaticFieldLittleEndianStringPerfTest.java
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleSetReleaseStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     static String sField = FIELD_VALUE;
     VarHandle mVh;
@@ -52,7 +53,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mVh.setRelease(FIELD_VALUE);
             mVh.setRelease(FIELD_VALUE);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetStaticFieldLittleEndianIntPerfTest.java
index 4007722..0470d67 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetStaticFieldLittleEndianIntPerfTest.java
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleSetStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -52,7 +53,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mVh.set(FIELD_VALUE);
             mVh.set(FIELD_VALUE);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetStaticFieldLittleEndianStringPerfTest.java
index 7323158..00abb0b 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetStaticFieldLittleEndianStringPerfTest.java
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleSetStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     static String sField = FIELD_VALUE;
     VarHandle mVh;
@@ -52,7 +53,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mVh.set(FIELD_VALUE);
             mVh.set(FIELD_VALUE);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetVolatileFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetVolatileFieldLittleEndianIntPerfTest.java
index f4119c2..c66b23b 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetVolatileFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetVolatileFieldLittleEndianIntPerfTest.java
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleSetVolatileFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -52,7 +53,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mVh.setVolatile(this, FIELD_VALUE);
             mVh.setVolatile(this, FIELD_VALUE);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetVolatileFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetVolatileFieldLittleEndianStringPerfTest.java
index 9b9c261..1b36450 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetVolatileFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetVolatileFieldLittleEndianStringPerfTest.java
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleSetVolatileFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     String mField = FIELD_VALUE;
     VarHandle mVh;
@@ -52,7 +53,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mVh.setVolatile(this, FIELD_VALUE);
             mVh.setVolatile(this, FIELD_VALUE);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetVolatileStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetVolatileStaticFieldLittleEndianIntPerfTest.java
index f125384..75f9274 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetVolatileStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetVolatileStaticFieldLittleEndianIntPerfTest.java
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleSetVolatileStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -52,7 +53,7 @@
     @Test
     public void run() {
         int x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mVh.setVolatile(FIELD_VALUE);
             mVh.setVolatile(FIELD_VALUE);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetVolatileStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetVolatileStaticFieldLittleEndianStringPerfTest.java
index 2ad605d..8289d4f 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetVolatileStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleSetVolatileStaticFieldLittleEndianStringPerfTest.java
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -33,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleSetVolatileStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     static String sField = FIELD_VALUE;
     VarHandle mVh;
@@ -52,7 +53,7 @@
     @Test
     public void run() {
         String x;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             mVh.setVolatile(FIELD_VALUE);
             mVh.setVolatile(FIELD_VALUE);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetAcquireFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetAcquireFieldLittleEndianIntPerfTest.java
index 5ef3bf0..9fac842 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetAcquireFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetAcquireFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleWeakcompareandsetAcquireFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         boolean success;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             success = mVh.weakCompareAndSetAcquire(this, mField, ~42);
             success = mVh.weakCompareAndSetAcquire(this, mField, 42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetAcquireFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetAcquireFieldLittleEndianStringPerfTest.java
index 0c4ed66..2f60127 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetAcquireFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetAcquireFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleWeakcompareandsetAcquireFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     String mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         boolean success;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             success = mVh.weakCompareAndSetAcquire(this, mField, null);
             success = mVh.weakCompareAndSetAcquire(this, mField, "qwerty");
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetAcquireStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetAcquireStaticFieldLittleEndianIntPerfTest.java
index db6bd24..4efbd3e 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetAcquireStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetAcquireStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleWeakcompareandsetAcquireStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         boolean success;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             success = mVh.weakCompareAndSetAcquire(sField, ~42);
             success = mVh.weakCompareAndSetAcquire(sField, 42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetAcquireStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetAcquireStaticFieldLittleEndianStringPerfTest.java
index d2b0bf7..099640c 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetAcquireStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetAcquireStaticFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,20 +34,19 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleWeakcompareandsetAcquireStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     static String sField = FIELD_VALUE;
     VarHandle mVh;
 
-    public VarHandleWeakcompareandsetAcquireStaticFieldLittleEndianStringPerfTest()
-            throws Throwable {
+    public VarHandleWeakcompareandsetAcquireStaticFieldLittleEndianStringPerfTest() throws Throwable {
         mVh = MethodHandles.lookup().findStaticVarHandle(this.getClass(), "sField", String.class);
     }
 
     @Test
     public void run() {
         boolean success;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             success = mVh.weakCompareAndSetAcquire(sField, null);
             success = mVh.weakCompareAndSetAcquire(sField, "qwerty");
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetFieldLittleEndianIntPerfTest.java
index 3cd5ae6..ce8f0f0 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleWeakcompareandsetFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         boolean success;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             success = mVh.weakCompareAndSet(this, mField, ~42);
             success = mVh.weakCompareAndSet(this, mField, 42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetFieldLittleEndianStringPerfTest.java
index 6ddfc25..c4119dc 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleWeakcompareandsetFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     String mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         boolean success;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             success = mVh.weakCompareAndSet(this, mField, null);
             success = mVh.weakCompareAndSet(this, mField, "qwerty");
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetPlainFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetPlainFieldLittleEndianIntPerfTest.java
index 375f0bc..abd981c 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetPlainFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetPlainFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleWeakcompareandsetPlainFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         boolean success;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             success = mVh.weakCompareAndSetPlain(this, mField, ~42);
             success = mVh.weakCompareAndSetPlain(this, mField, 42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetPlainFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetPlainFieldLittleEndianStringPerfTest.java
index 7e2492a..c71e65f 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetPlainFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetPlainFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleWeakcompareandsetPlainFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     String mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         boolean success;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             success = mVh.weakCompareAndSetPlain(this, mField, null);
             success = mVh.weakCompareAndSetPlain(this, mField, "qwerty");
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetPlainStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetPlainStaticFieldLittleEndianIntPerfTest.java
index 190118c..f3c8f3a 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetPlainStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetPlainStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleWeakcompareandsetPlainStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         boolean success;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             success = mVh.weakCompareAndSetPlain(sField, ~42);
             success = mVh.weakCompareAndSetPlain(sField, 42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetPlainStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetPlainStaticFieldLittleEndianStringPerfTest.java
index 484ba1b..5c943a4 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetPlainStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetPlainStaticFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleWeakcompareandsetPlainStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     static String sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         boolean success;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             success = mVh.weakCompareAndSetPlain(sField, null);
             success = mVh.weakCompareAndSetPlain(sField, "qwerty");
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetReleaseFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetReleaseFieldLittleEndianIntPerfTest.java
index 80e4e15..1755a15 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetReleaseFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetReleaseFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleWeakcompareandsetReleaseFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     int mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         boolean success;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             success = mVh.weakCompareAndSetRelease(this, mField, ~42);
             success = mVh.weakCompareAndSetRelease(this, mField, 42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetReleaseFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetReleaseFieldLittleEndianStringPerfTest.java
index fa26c59..77175b0 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetReleaseFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetReleaseFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleWeakcompareandsetReleaseFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     String mField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         boolean success;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             success = mVh.weakCompareAndSetRelease(this, mField, null);
             success = mVh.weakCompareAndSetRelease(this, mField, "qwerty");
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetReleaseStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetReleaseStaticFieldLittleEndianIntPerfTest.java
index 16bf2a20..985519e 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetReleaseStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetReleaseStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleWeakcompareandsetReleaseStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         boolean success;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             success = mVh.weakCompareAndSetRelease(sField, ~42);
             success = mVh.weakCompareAndSetRelease(sField, 42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetReleaseStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetReleaseStaticFieldLittleEndianStringPerfTest.java
index e1716de..69e6ca7 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetReleaseStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetReleaseStaticFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,20 +34,19 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleWeakcompareandsetReleaseStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     static String sField = FIELD_VALUE;
     VarHandle mVh;
 
-    public VarHandleWeakcompareandsetReleaseStaticFieldLittleEndianStringPerfTest()
-            throws Throwable {
+    public VarHandleWeakcompareandsetReleaseStaticFieldLittleEndianStringPerfTest() throws Throwable {
         mVh = MethodHandles.lookup().findStaticVarHandle(this.getClass(), "sField", String.class);
     }
 
     @Test
     public void run() {
         boolean success;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             success = mVh.weakCompareAndSetRelease(sField, null);
             success = mVh.weakCompareAndSetRelease(sField, "qwerty");
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetStaticFieldLittleEndianIntPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetStaticFieldLittleEndianIntPerfTest.java
index dc6f2ad..88df5ff 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetStaticFieldLittleEndianIntPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetStaticFieldLittleEndianIntPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleWeakcompareandsetStaticFieldLittleEndianIntPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final int FIELD_VALUE = 42;
     static int sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         boolean success;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             success = mVh.weakCompareAndSet(sField, ~42);
             success = mVh.weakCompareAndSet(sField, 42);
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetStaticFieldLittleEndianStringPerfTest.java b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetStaticFieldLittleEndianStringPerfTest.java
index d1096c6..c296f668 100644
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetStaticFieldLittleEndianStringPerfTest.java
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/VarHandleWeakcompareandsetStaticFieldLittleEndianStringPerfTest.java
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// This file is generated by generate_java.py do not directly modify!
+ // This file is generated by generate_java.py do not directly modify!
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -32,7 +34,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class VarHandleWeakcompareandsetStaticFieldLittleEndianStringPerfTest {
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final String FIELD_VALUE = "qwerty";
     static String sField = FIELD_VALUE;
     VarHandle mVh;
@@ -44,7 +46,7 @@
     @Test
     public void run() {
         boolean success;
-        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final BenchmarkState state = mBenchmarkRule.getState();
         while (state.keepRunning()) {
             success = mVh.weakCompareAndSet(sField, null);
             success = mVh.weakCompareAndSet(sField, "qwerty");
diff --git a/apct-tests/perftests/core/src/android/libcore/varhandles/generate_java.py b/apct-tests/perftests/core/src/android/libcore/varhandles/generate_java.py
index 4b4bc60..a43569a 100755
--- a/apct-tests/perftests/core/src/android/libcore/varhandles/generate_java.py
+++ b/apct-tests/perftests/core/src/android/libcore/varhandles/generate_java.py
@@ -42,7 +42,7 @@
     return ''.join(c for c in word.title() if not c == '_')
 
 
-LOOP ="BenchmarkState state = mPerfStatusReporter.getBenchmarkState();\n        while (state.keepRunning())"
+LOOP ="final BenchmarkState state = mBenchmarkRule.getState();\n        while (state.keepRunning())"
 
 class Benchmark:
     def __init__(self, code, static, vartype, flavour, klass, method, memloc,
@@ -158,10 +158,10 @@
 VH_IMPORTS = """
 package android.libcore.varhandles;
 
-import android.perftests.utils.BenchmarkState;
-import android.perftests.utils.PerfStatusReporter;
-import android.test.suitebuilder.annotation.LargeTest;
+import androidx.benchmark.BenchmarkState;
+import androidx.benchmark.junit4.BenchmarkRule;
 
+import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.After;
@@ -179,7 +179,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class {name} {{
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final {vartype} FIELD_VALUE = {value1};
     {static_kwd}{vartype} {static_prefix}Field = FIELD_VALUE;
     VarHandle mVh;
@@ -273,7 +273,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class {name} {{
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final {vartype} ELEMENT_VALUE = {value1};
     {vartype}[] mArray = {{ ELEMENT_VALUE }};
     VarHandle mVh;
@@ -324,7 +324,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class {name} {{
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     static final {vartype} VALUE = {value1};
     byte[] mArray1 = {value1_byte_array};
     byte[] mArray2 = {value2_byte_array};
@@ -375,7 +375,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class {name} {{
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     Field mField;
     {static_kwd}{vartype} {static_prefix}Value;
 
@@ -407,7 +407,7 @@
 @RunWith(AndroidJUnit4.class)
 @LargeTest
 public class {name} {{
-    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+    @Rule public BenchmarkRule mBenchmarkRule = new BenchmarkRule();
     long mOffset;
     public {static_kwd}{vartype} {static_prefix}Value = {value1};
 
diff --git a/services/tests/powerstatstests/Android.bp b/services/tests/powerstatstests/Android.bp
index 631f76a..cedf9db 100644
--- a/services/tests/powerstatstests/Android.bp
+++ b/services/tests/powerstatstests/Android.bp
@@ -65,7 +65,6 @@
         "androidx.annotation_annotation",
         "androidx.test.rules",
         "androidx.test.uiautomator_uiautomator",
-        "androidx.test.ext.junit",
         "modules-utils-binary-xml",
         "flag-junit",
     ],
diff --git a/services/tests/powerstatstests/TEST_MAPPING b/services/tests/powerstatstests/TEST_MAPPING
index d3d3cf6..4e209f4 100644
--- a/services/tests/powerstatstests/TEST_MAPPING
+++ b/services/tests/powerstatstests/TEST_MAPPING
@@ -9,7 +9,8 @@
       "name": "PowerStatsTestsRavenwood",
       "host": true,
       "options": [
-        {"include-filter": "com.android.server.power.stats"}
+        {"include-filter": "com.android.server.power.stats"},
+        {"exclude-annotation": "android.platform.test.annotations.DisabledOnRavenwood"}
       ]
     }
   ],