diff --git a/apct-tests/perftests/core/src/android/libcore/regression/AnnotatedElementPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/AnnotatedElementPerfTest.java
new file mode 100644
index 0000000..d38d519
--- /dev/null
+++ b/apct-tests/perftests/core/src/android/libcore/regression/AnnotatedElementPerfTest.java
@@ -0,0 +1,331 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.libcore.regression;
+
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import androidx.test.runner.AndroidJUnit4;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+
+@RunWith(AndroidJUnit4.class)
+@LargeTest
+public class AnnotatedElementPerfTest {
+    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+    private Class<?> mType;
+    private Field mField;
+    private Method mMethod;
+
+    @Before
+    public void setUp() throws Exception {
+        mType = Type.class;
+        mField = Type.class.getField("field");
+        mMethod = Type.class.getMethod("method", String.class);
+    }
+
+    // get annotations by member type and method
+
+    @Test
+    public void timeGetTypeAnnotations() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            mType.getAnnotations();
+        }
+    }
+
+    @Test
+    public void timeGetFieldAnnotations() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            mField.getAnnotations();
+        }
+    }
+
+    @Test
+    public void timeGetMethodAnnotations() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            mMethod.getAnnotations();
+        }
+    }
+
+    @Test
+    public void timeGetParameterAnnotations() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            mMethod.getParameterAnnotations();
+        }
+    }
+
+    @Test
+    public void timeGetTypeAnnotation() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            mType.getAnnotation(Marker.class);
+        }
+    }
+
+    @Test
+    public void timeGetFieldAnnotation() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            mField.getAnnotation(Marker.class);
+        }
+    }
+
+    @Test
+    public void timeGetMethodAnnotation() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            mMethod.getAnnotation(Marker.class);
+        }
+    }
+
+    @Test
+    public void timeIsTypeAnnotationPresent() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            mType.isAnnotationPresent(Marker.class);
+        }
+    }
+
+    @Test
+    public void timeIsFieldAnnotationPresent() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            mField.isAnnotationPresent(Marker.class);
+        }
+    }
+
+    @Test
+    public void timeIsMethodAnnotationPresent() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            mMethod.isAnnotationPresent(Marker.class);
+        }
+    }
+
+    // get annotations by result size
+
+    @Test
+    public void timeGetAllReturnsLargeAnnotation() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            HasLargeAnnotation.class.getAnnotations();
+        }
+    }
+
+    @Test
+    public void timeGetAllReturnsSmallAnnotation() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            HasSmallAnnotation.class.getAnnotations();
+        }
+    }
+
+    @Test
+    public void timeGetAllReturnsMarkerAnnotation() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            HasMarkerAnnotation.class.getAnnotations();
+        }
+    }
+
+    @Test
+    public void timeGetAllReturnsNoAnnotation() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            HasNoAnnotations.class.getAnnotations();
+        }
+    }
+
+    @Test
+    public void timeGetAllReturnsThreeAnnotations() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            HasThreeAnnotations.class.getAnnotations();
+        }
+    }
+
+    // get annotations with inheritance
+
+    @Test
+    public void timeGetAnnotationsOnSubclass() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            ExtendsHasThreeAnnotations.class.getAnnotations();
+        }
+    }
+
+    @Test
+    public void timeGetDeclaredAnnotationsOnSubclass() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            ExtendsHasThreeAnnotations.class.getDeclaredAnnotations();
+        }
+    }
+
+    // get annotations with enclosing / inner classes
+
+    @Test
+    public void timeGetDeclaredClasses() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            AnnotatedElementPerfTest.class.getDeclaredClasses();
+        }
+    }
+
+    @Test
+    public void timeGetDeclaringClass() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            HasSmallAnnotation.class.getDeclaringClass();
+        }
+    }
+
+    @Test
+    public void timeGetEnclosingClass() {
+        Object anonymousClass = new Object() {};
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            anonymousClass.getClass().getEnclosingClass();
+        }
+    }
+
+    @Test
+    public void timeGetEnclosingConstructor() {
+        Object anonymousClass = new Object() {};
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            anonymousClass.getClass().getEnclosingConstructor();
+        }
+    }
+
+    @Test
+    public void timeGetEnclosingMethod() {
+        Object anonymousClass = new Object() {};
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            anonymousClass.getClass().getEnclosingMethod();
+        }
+    }
+
+    @Test
+    public void timeGetModifiers() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            HasSmallAnnotation.class.getModifiers();
+        }
+    }
+
+    @Test
+    public void timeGetSimpleName() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            HasSmallAnnotation.class.getSimpleName();
+        }
+    }
+
+    @Test
+    public void timeIsAnonymousClass() {
+        Object anonymousClass = new Object() {};
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            anonymousClass.getClass().isAnonymousClass();
+        }
+    }
+
+    @Test
+    public void timeIsLocalClass() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            HasSmallAnnotation.class.isLocalClass();
+        }
+    }
+
+    // the annotated elements
+
+    @Marker
+    public class Type {
+        @Marker public String field;
+
+        @Marker
+        public void method(@Marker String parameter) {}
+    }
+
+    @Large(
+            a = "on class",
+            b = {"A", "B", "C"},
+            c = @Small(e = "E1", f = 1695938256, g = 7264081114510713000L),
+            d = {@Small(e = "E2", f = 1695938256, g = 7264081114510713000L)})
+    public class HasLargeAnnotation {}
+
+    @Small(e = "E1", f = 1695938256, g = 7264081114510713000L)
+    public class HasSmallAnnotation {}
+
+    @Marker
+    public class HasMarkerAnnotation {}
+
+    public class HasNoAnnotations {}
+
+    @Large(
+            a = "on class",
+            b = {"A", "B", "C"},
+            c = @Small(e = "E1", f = 1695938256, g = 7264081114510713000L),
+            d = {@Small(e = "E2", f = 1695938256, g = 7264081114510713000L)})
+    @Small(e = "E1", f = 1695938256, g = 7264081114510713000L)
+    @Marker
+    public class HasThreeAnnotations {}
+
+    public class ExtendsHasThreeAnnotations extends HasThreeAnnotations {}
+
+    // the annotations
+
+    @Retention(RetentionPolicy.RUNTIME)
+    public @interface Marker {}
+
+    @Retention(RetentionPolicy.RUNTIME)
+    public @interface Large {
+        String a() default "";
+
+        String[] b() default {};
+
+        Small c() default @Small;
+
+        Small[] d() default {};
+    }
+
+    @Retention(RetentionPolicy.RUNTIME)
+    public @interface Small {
+        String e() default "";
+
+        int f() default 0;
+
+        long g() default 0L;
+    }
+}
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/BidiPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/BidiPerfTest.java
new file mode 100644
index 0000000..cc56868
--- /dev/null
+++ b/apct-tests/perftests/core/src/android/libcore/regression/BidiPerfTest.java
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.libcore.regression;
+
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import androidx.test.runner.AndroidJUnit4;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.math.BigDecimal;
+import java.text.AttributedCharacterIterator;
+import java.text.Bidi;
+import java.text.DecimalFormat;
+
+@RunWith(AndroidJUnit4.class)
+@LargeTest
+public class BidiPerfTest {
+    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+    private static final AttributedCharacterIterator CHAR_ITER =
+            DecimalFormat.getInstance().formatToCharacterIterator(new BigDecimal(Math.PI));
+
+    @Test
+    public void time_createBidiFromIter() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            Bidi bidi = new Bidi(CHAR_ITER);
+        }
+    }
+
+    @Test
+    public void time_createBidiFromCharArray() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            Bidi bd =
+                    new Bidi(
+                            new char[] {'s', 's', 's'},
+                            0,
+                            new byte[] {(byte) 1, (byte) 2, (byte) 3},
+                            0,
+                            3,
+                            Bidi.DIRECTION_RIGHT_TO_LEFT);
+        }
+    }
+
+    @Test
+    public void time_createBidiFromString() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            Bidi bidi = new Bidi("Hello", Bidi.DIRECTION_LEFT_TO_RIGHT);
+        }
+    }
+
+    @Test
+    public void time_reorderVisually() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            Bidi.reorderVisually(
+                    new byte[] {2, 1, 3, 0, 4}, 0, new String[] {"H", "e", "l", "l", "o"}, 0, 5);
+        }
+    }
+
+    @Test
+    public void time_hebrewBidi() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            Bidi bd =
+                    new Bidi(
+                            new char[] {'\u05D0', '\u05D0', '\u05D0'},
+                            0,
+                            new byte[] {(byte) -1, (byte) -2, (byte) -3},
+                            0,
+                            3,
+                            Bidi.DIRECTION_DEFAULT_RIGHT_TO_LEFT);
+            bd =
+                    new Bidi(
+                            new char[] {'\u05D0', '\u05D0', '\u05D0'},
+                            0,
+                            new byte[] {(byte) -1, (byte) -2, (byte) -3},
+                            0,
+                            3,
+                            Bidi.DIRECTION_LEFT_TO_RIGHT);
+        }
+    }
+
+    @Test
+    public void time_complicatedOverrideBidi() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            Bidi bd =
+                    new Bidi(
+                            "a\u05D0a\"a\u05D0\"\u05D0a".toCharArray(),
+                            0,
+                            new byte[] {0, 0, 0, -3, -3, 2, 2, 0, 3},
+                            0,
+                            9,
+                            Bidi.DIRECTION_RIGHT_TO_LEFT);
+        }
+    }
+
+    @Test
+    public void time_requiresBidi() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        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
new file mode 100644
index 0000000..662694b
--- /dev/null
+++ b/apct-tests/perftests/core/src/android/libcore/regression/BigIntegerPerfTest.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.libcore.regression;
+
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import androidx.test.runner.AndroidJUnit4;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.math.BigInteger;
+import java.util.Random;
+
+@RunWith(AndroidJUnit4.class)
+@LargeTest
+public class BigIntegerPerfTest {
+    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+    @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();
+        while (state.keepRunning()) {
+            x.divide(y);
+        }
+    }
+
+    @Test
+    public void timeRandomGcd() throws Exception {
+        Random r = new Random();
+        BigInteger x = new BigInteger(1024, r);
+        BigInteger y = new BigInteger(1024, r);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            x.gcd(y);
+        }
+    }
+
+    @Test
+    public void timeRandomMultiplication() throws Exception {
+        Random r = new Random();
+        BigInteger x = new BigInteger(1024, r);
+        BigInteger y = new BigInteger(1024, r);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        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
new file mode 100644
index 0000000..db5462c
--- /dev/null
+++ b/apct-tests/perftests/core/src/android/libcore/regression/BitSetPerfTest.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.libcore.regression;
+
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
+
+import java.util.Arrays;
+import java.util.BitSet;
+import java.util.Collection;
+
+@RunWith(Parameterized.class)
+@LargeTest
+public class BitSetPerfTest {
+    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+    @Parameters(name = "mSize={0}")
+    public static Collection<Object[]> data() {
+        return Arrays.asList(new Object[][] {{1000}, {10000}});
+    }
+
+    @Parameterized.Parameter(0)
+    public int mSize;
+
+    private BitSet mBitSet;
+
+    @Before
+    public void setUp() throws Exception {
+        mBitSet = new BitSet(mSize);
+    }
+
+    @Test
+    public void timeIsEmptyTrue() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            if (!mBitSet.isEmpty()) throw new RuntimeException();
+        }
+    }
+
+    @Test
+    public void timeIsEmptyFalse() {
+        mBitSet.set(mBitSet.size() - 1);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            if (mBitSet.isEmpty()) throw new RuntimeException();
+        }
+    }
+
+    @Test
+    public void timeGet() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        int i = 1;
+        while (state.keepRunning()) {
+            mBitSet.get(++i % mSize);
+        }
+    }
+
+    @Test
+    public void timeClear() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        int i = 1;
+        while (state.keepRunning()) {
+            mBitSet.clear(++i % mSize);
+        }
+    }
+
+    @Test
+    public void timeSet() {
+        int i = 1;
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            mBitSet.set(++i % mSize);
+        }
+    }
+
+    @Test
+    public void timeSetOn() {
+        int i = 1;
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            mBitSet.set(++i % mSize, true);
+        }
+    }
+
+    @Test
+    public void timeSetOff() {
+        int i = 1;
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            mBitSet.set(++i % mSize, 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
new file mode 100644
index 0000000..3952c12
--- /dev/null
+++ b/apct-tests/perftests/core/src/android/libcore/regression/BreakIteratorPerfTest.java
@@ -0,0 +1,193 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.libcore.regression;
+
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
+
+import java.text.BreakIterator;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Locale;
+
+@RunWith(Parameterized.class)
+@LargeTest
+public final class BreakIteratorPerfTest {
+    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+    public enum Text {
+        LIPSUM(
+                Locale.US,
+                "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi mollis consequat"
+                    + " nisl non pharetra. Praesent pretium vehicula odio sed ultrices. Aenean a"
+                    + " felis libero. Vivamus sed commodo nibh. Pellentesque turpis lectus, euismod"
+                    + " vel ante nec, cursus posuere orci. Suspendisse velit neque, fermentum"
+                    + " luctus ultrices in, ultrices vitae arcu. Duis tincidunt cursus lorem. Nam"
+                    + " ultricies accumsan quam vitae imperdiet. Pellentesque habitant morbi"
+                    + " tristique senectus et netus et malesuada fames ac turpis egestas. Quisque"
+                    + " aliquet pretium nisi, eget laoreet enim molestie sit amet. Class aptent"
+                    + " taciti sociosqu ad litora torquent per conubia nostra, per inceptos"
+                    + " himenaeos.\n"
+                    + "Nam dapibus aliquam lacus ac suscipit. Proin in nibh sit amet purus congue"
+                    + " laoreet eget quis nisl. Morbi gravida dignissim justo, a venenatis ante"
+                    + " pulvinar at. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin"
+                    + " ultrices vestibulum dui, vel aliquam lacus aliquam quis. Duis fringilla"
+                    + " sapien ac lacus egestas, vel adipiscing elit euismod. Donec non tellus"
+                    + " odio. Donec gravida eu massa ac feugiat. Aliquam erat volutpat. Praesent id"
+                    + " adipiscing metus, nec laoreet enim. Aliquam vitae posuere turpis. Mauris ac"
+                    + " pharetra sem. In at placerat tortor. Vivamus ac vehicula neque. Cras"
+                    + " volutpat ullamcorper massa et varius. Praesent sagittis neque vitae nulla"
+                    + " euismod pharetra.\n"
+                    + "Sed placerat sapien non molestie sollicitudin. Nullam sit amet dictum quam."
+                    + " Etiam tincidunt tortor vel pretium vehicula. Praesent fringilla ipsum vel"
+                    + " velit luctus dignissim. Nulla massa ligula, mattis in enim et, mattis"
+                    + " lacinia odio. Suspendisse tristique urna a orci commodo tempor. Duis"
+                    + " lacinia egestas arcu a sollicitudin.\n"
+                    + "In ac feugiat lacus. Nunc fermentum eu est at tristique. Pellentesque quis"
+                    + " ligula et orci placerat lacinia. Maecenas quis mauris diam. Etiam mi ipsum,"
+                    + " tempus in purus quis, euismod faucibus orci. Nulla facilisi. Praesent sit"
+                    + " amet sapien vel elit porta adipiscing. Phasellus sit amet volutpat diam.\n"
+                    + "Proin bibendum elit non lacus pharetra, quis eleifend tellus placerat. Nulla"
+                    + " facilisi. Maecenas ante diam, pellentesque mattis mattis in, porta ut"
+                    + " lorem. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices"
+                    + " posuere cubilia Curae; Nunc interdum tristique metus, in scelerisque odio"
+                    + " fermentum eget. Cras nec venenatis lacus. Aenean euismod eget metus quis"
+                    + " molestie. Cras tincidunt dolor ut massa ornare, in elementum lacus auctor."
+                    + " Cras sodales nisl lacus, id ultrices ligula varius at. Sed tristique sit"
+                    + " amet tellus vel mollis. Sed sed sollicitudin quam. Sed sed adipiscing"
+                    + " risus, et dictum orci. Cras tempor pellentesque turpis et tempus."),
+        LONGPARA(
+                Locale.US,
+                "During dinner, Mr. Bennet scarcely spoke at all; but when the servants were"
+                    + " withdrawn, he thought it time to have some conversation with his guest, and"
+                    + " therefore started a subject in which he expected him to shine, by observing"
+                    + " that he seemed very fortunate in his patroness. Lady Catherine de Bourgh's"
+                    + " attention to his wishes, and consideration for his comfort, appeared very"
+                    + " remarkable. Mr. Bennet could not have chosen better. Mr. Collins was"
+                    + " eloquent in her praise. The subject elevated him to more than usual"
+                    + " solemnity of manner, and with a most important aspect he protested that"
+                    + " \"he had never in his life witnessed such behaviour in a person of"
+                    + " rank--such affability and condescension, as he had himself experienced from"
+                    + " Lady Catherine. She had been graciously pleased to approve of both of the"
+                    + " discourses which he had already had the honour of preaching before her. She"
+                    + " had also asked him twice to dine at Rosings, and had sent for him only the"
+                    + " Saturday before, to make up her pool of quadrille in the evening. Lady"
+                    + " Catherine was reckoned proud by many people he knew, but _he_ had never"
+                    + " seen anything but affability in her. She had always spoken to him as she"
+                    + " would to any other gentleman; she made not the smallest objection to his"
+                    + " joining in the society of the neighbourhood nor to his leaving the parish"
+                    + " occasionally for a week or two, to visit his relations. She had even"
+                    + " condescended to advise him to marry as soon as he could, provided he chose"
+                    + " with discretion; and had once paid him a visit in his humble parsonage,"
+                    + " where she had perfectly approved all the alterations he had been making,"
+                    + " and had even vouchsafed to suggest some herself--some shelves in the closet"
+                    + " up stairs.\""),
+        GERMAN(
+                Locale.GERMANY,
+                "Aber dieser Freiheit setzte endlich der Winter ein Ziel. Draußen auf den Feldern"
+                    + " und den hohen Bergen lag der Schnee und Peter wäre in seinem dünnen"
+                    + " Leinwandjäckchen bald erfroren. Es war also seine einzige Freude, hinaus"
+                    + " vor die Hütte zu treten und den Sperlingen Brotkrümchen zu streuen, was er"
+                    + " sich jedesmal an seinem Frühstück absparte. Wenn nun die Vögel so lustig"
+                    + " zwitscherten und um ihn herumflogen, da klopfte ihm das Herz vor Lust, und"
+                    + " oft gab er ihnen sein ganzes Stück Schwarzbrot, ohne daran zu denken, daß"
+                    + " er dafür alsdann selbst hungern müsse."),
+        THAI(
+                Locale.forLanguageTag("th-TH"),
+                "เป็นสำเนียงทางการของภาษาไทย"
+                    + " เดิมทีเป็นการผสมผสานกันระหว่างสำเนียงอยุธยาและชาวไทยเชื้อสายจีนรุ่นหลังที่"
+                    + "พูดไทยแทนกลุ่มภาษาจีน"
+                    + " ลักษณะเด่นคือมีการออกเสียงที่ชัดเจนและแข็งกระด้างซึ่งได้รับอิทธิพลจากภาษาแต"
+                    + "้จิ๋ว"
+                    + " การออกเสียงพยัญชนะ สระ การผันวรรณยุกต์ที่ในภาษาไทยมาตรฐาน"
+                    + " มาจากสำเนียงถิ่นนี้ในขณะที่ภาษาไทยสำเนียงอื่นล้วนเหน่อทั้งสิ้น"
+                    + " คำศัพท์ที่ใช้ในสำเนียงกรุงเทพจำนวนมากได้รับมาจากกลุ่มภาษาจีนเช่นคำว่า โป๊,"
+                    + " เฮ็ง, อาหมวย, อาซิ่ม ซึ่งมาจากภาษาแต้จิ๋ว และจากภาษาจีนเช่น ถู(涂), ชิ่ว(去"
+                    + " อ่านว่า\"ชู่\") และคำว่า ทาย(猜 อ่านว่า \"ชาย\") เป็นต้น"
+                    + " เนื่องจากสำเนียงกรุงเทพได้รับอิทธิพลมาจากภาษาจีนดังนั้นตัวอักษร \"ร\""
+                    + " มักออกเสียงเหมารวมเป็น \"ล\" หรือคำควบกล่ำบางคำถูกละทิ้งไปด้วยเช่น รู้ เป็น"
+                    + " ลู้, เรื่อง เป็น เลื่อง หรือ ประเทศ เป็น ปะเทศ"
+                    + " เป็นต้นสร้างความลำบากให้แก่ต่างชาติที่ต้องการเรียนภาษาไทย"
+                    + " แต่อย่างไรก็ตามผู้ที่พูดสำเนียงถิ่นนี้ก็สามารถออกอักขระภาษาไทยตามมาตรฐานได"
+                    + "้อย่างถูกต้องเพียงแต่มักเผลอไม่ค่อยออกเสียง"),
+        THAI2(Locale.forLanguageTag("th-TH"), "this is the word browser in Thai: เบราว์เซอร์"),
+        TABS(Locale.US, "one\t\t\t\t\t\t\t\t\t\t\t\t\t\ttwo\n"),
+        ACCENT(Locale.US, "e\u0301\u00e9\nwhich is:\n\"e\\u0301\\u00e9\""),
+        EMOJI(Locale.US, ">>\ud83d\ude01<<\nwhich is:\n\">>\\ud83d\\ude01<<\""),
+        SPACES(Locale.US, "     leading spaces      and trailing ones too      "),
+        EMPTY(Locale.US, ""),
+        NEWLINE(Locale.US, "\\n:\n"),
+        BIDI(
+                Locale.forLanguageTag("he-IL"),
+                "Sarah שרה is spelled sin ש resh ר heh ה from right to left.");
+
+        final Locale mLocale;
+        final String mText;
+
+        Text(Locale locale, String text) {
+            this.mText = text;
+            this.mLocale = locale;
+        }
+    }
+
+    @Parameters(name = "mText={0}")
+    public static Collection<Object[]> data() {
+        return Arrays.asList(
+                new Object[][] {
+                    {Text.ACCENT}, {Text.BIDI}, {Text.EMOJI}, {Text.EMPTY}, {Text.GERMAN},
+                    {Text.LIPSUM}, {Text.LONGPARA}, {Text.NEWLINE}, {Text.SPACES}, {Text.TABS},
+                    {Text.THAI}, {Text.THAI2}
+                });
+    }
+
+    @Parameterized.Parameter(0)
+    public Text mText;
+
+    @Test
+    public void timeBreakIterator() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            BreakIterator it = BreakIterator.getLineInstance(mText.mLocale);
+            it.setText(mText.mText);
+
+            while (it.next() != BreakIterator.DONE) {
+                // Keep iterating
+            }
+        }
+    }
+
+    @Test
+    public void timeIcuBreakIterator() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            android.icu.text.BreakIterator it =
+                    android.icu.text.BreakIterator.getLineInstance(mText.mLocale);
+            it.setText(mText.mText);
+
+            while (it.next() != android.icu.text.BreakIterator.DONE) {
+                // Keep iterating
+            }
+        }
+    }
+}
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/ByteBufferBulkPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/ByteBufferBulkPerfTest.java
new file mode 100644
index 0000000..8e57b28
--- /dev/null
+++ b/apct-tests/perftests/core/src/android/libcore/regression/ByteBufferBulkPerfTest.java
@@ -0,0 +1,139 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.libcore.regression;
+
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.RandomAccessFile;
+import java.nio.ByteBuffer;
+import java.nio.channels.FileChannel;
+import java.util.Arrays;
+import java.util.Collection;
+
+@RunWith(Parameterized.class)
+@LargeTest
+public class ByteBufferBulkPerfTest {
+    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+    @Parameters(name = "mAligned({0}), mSrcBufferType({1}), mDataBufferType({2}), mBufferSize({3})")
+    public static Collection<Object[]> data() {
+        return Arrays.asList(
+                new Object[][] {
+                    {true, MyBufferType.DIRECT, MyBufferType.DIRECT, 4096},
+                    {false, MyBufferType.DIRECT, MyBufferType.DIRECT, 4096},
+                    {true, MyBufferType.HEAP, MyBufferType.DIRECT, 4096},
+                    {false, MyBufferType.HEAP, MyBufferType.DIRECT, 4096},
+                    {true, MyBufferType.MAPPED, MyBufferType.DIRECT, 4096},
+                    {false, MyBufferType.MAPPED, MyBufferType.DIRECT, 4096},
+                    {true, MyBufferType.DIRECT, MyBufferType.HEAP, 4096},
+                    {false, MyBufferType.DIRECT, MyBufferType.HEAP, 4096},
+                    {true, MyBufferType.HEAP, MyBufferType.HEAP, 4096},
+                    {false, MyBufferType.HEAP, MyBufferType.HEAP, 4096},
+                    {true, MyBufferType.MAPPED, MyBufferType.HEAP, 4096},
+                    {false, MyBufferType.MAPPED, MyBufferType.HEAP, 4096},
+                    {true, MyBufferType.DIRECT, MyBufferType.MAPPED, 4096},
+                    {false, MyBufferType.DIRECT, MyBufferType.MAPPED, 4096},
+                    {true, MyBufferType.HEAP, MyBufferType.MAPPED, 4096},
+                    {false, MyBufferType.HEAP, MyBufferType.MAPPED, 4096},
+                    {true, MyBufferType.MAPPED, MyBufferType.MAPPED, 4096},
+                    {false, MyBufferType.MAPPED, MyBufferType.MAPPED, 4096},
+                    {true, MyBufferType.DIRECT, MyBufferType.DIRECT, 1232896},
+                    {false, MyBufferType.DIRECT, MyBufferType.DIRECT, 1232896},
+                    {true, MyBufferType.HEAP, MyBufferType.DIRECT, 1232896},
+                    {false, MyBufferType.HEAP, MyBufferType.DIRECT, 1232896},
+                    {true, MyBufferType.MAPPED, MyBufferType.DIRECT, 1232896},
+                    {false, MyBufferType.MAPPED, MyBufferType.DIRECT, 1232896},
+                    {true, MyBufferType.DIRECT, MyBufferType.HEAP, 1232896},
+                    {false, MyBufferType.DIRECT, MyBufferType.HEAP, 1232896},
+                    {true, MyBufferType.HEAP, MyBufferType.HEAP, 1232896},
+                    {false, MyBufferType.HEAP, MyBufferType.HEAP, 1232896},
+                    {true, MyBufferType.MAPPED, MyBufferType.HEAP, 1232896},
+                    {false, MyBufferType.MAPPED, MyBufferType.HEAP, 1232896},
+                    {true, MyBufferType.DIRECT, MyBufferType.MAPPED, 1232896},
+                    {false, MyBufferType.DIRECT, MyBufferType.MAPPED, 1232896},
+                    {true, MyBufferType.HEAP, MyBufferType.MAPPED, 1232896},
+                    {false, MyBufferType.HEAP, MyBufferType.MAPPED, 1232896},
+                    {true, MyBufferType.MAPPED, MyBufferType.MAPPED, 1232896},
+                    {false, MyBufferType.MAPPED, MyBufferType.MAPPED, 1232896},
+                });
+    }
+
+    @Parameterized.Parameter(0)
+    public boolean mAligned;
+
+    enum MyBufferType {
+        DIRECT,
+        HEAP,
+        MAPPED
+    }
+
+    @Parameterized.Parameter(1)
+    public MyBufferType mSrcBufferType;
+
+    @Parameterized.Parameter(2)
+    public MyBufferType mDataBufferType;
+
+    @Parameterized.Parameter(3)
+    public int mBufferSize;
+
+    public static ByteBuffer newBuffer(boolean aligned, MyBufferType bufferType, int bsize)
+            throws IOException {
+        int size = aligned ? bsize : bsize + 8 + 1;
+        ByteBuffer result = null;
+        switch (bufferType) {
+            case DIRECT:
+                result = ByteBuffer.allocateDirect(size);
+                break;
+            case HEAP:
+                result = ByteBuffer.allocate(size);
+                break;
+            case MAPPED:
+                File tmpFile = File.createTempFile("MappedByteBufferTest", ".tmp");
+                tmpFile.createNewFile();
+                tmpFile.deleteOnExit();
+                RandomAccessFile raf = new RandomAccessFile(tmpFile, "rw");
+                raf.setLength(size);
+                FileChannel fc = raf.getChannel();
+                result = fc.map(FileChannel.MapMode.READ_WRITE, 0, fc.size());
+                break;
+        }
+        result.position(aligned ? 0 : 1);
+        return result;
+    }
+
+    @Test
+    public void timeByteBuffer_putByteBuffer() throws Exception {
+        ByteBuffer src = ByteBufferBulkPerfTest.newBuffer(mAligned, mSrcBufferType, mBufferSize);
+        ByteBuffer data = ByteBufferBulkPerfTest.newBuffer(mAligned, mDataBufferType, mBufferSize);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            src.position(mAligned ? 0 : 1);
+            data.position(mAligned ? 0 : 1);
+            src.put(data);
+        }
+    }
+}
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/ByteBufferPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/ByteBufferPerfTest.java
new file mode 100644
index 0000000..4bd7c4e
--- /dev/null
+++ b/apct-tests/perftests/core/src/android/libcore/regression/ByteBufferPerfTest.java
@@ -0,0 +1,532 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.libcore.regression;
+
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.RandomAccessFile;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.nio.CharBuffer;
+import java.nio.DoubleBuffer;
+import java.nio.FloatBuffer;
+import java.nio.IntBuffer;
+import java.nio.LongBuffer;
+import java.nio.ShortBuffer;
+import java.nio.channels.FileChannel;
+import java.util.Arrays;
+import java.util.Collection;
+
+@RunWith(Parameterized.class)
+@LargeTest
+public class ByteBufferPerfTest {
+    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+    public enum MyByteOrder {
+        BIG(ByteOrder.BIG_ENDIAN),
+        LITTLE(ByteOrder.LITTLE_ENDIAN);
+        final ByteOrder mByteOrder;
+
+        MyByteOrder(ByteOrder mByteOrder) {
+            this.mByteOrder = mByteOrder;
+        }
+    }
+
+    @Parameters(name = "mByteOrder={0}, mAligned={1}, mBufferType={2}")
+    public static Collection<Object[]> data() {
+        return Arrays.asList(
+                new Object[][] {
+                    {MyByteOrder.BIG, true, MyBufferType.DIRECT},
+                    {MyByteOrder.LITTLE, true, MyBufferType.DIRECT},
+                    {MyByteOrder.BIG, false, MyBufferType.DIRECT},
+                    {MyByteOrder.LITTLE, false, MyBufferType.DIRECT},
+                    {MyByteOrder.BIG, true, MyBufferType.HEAP},
+                    {MyByteOrder.LITTLE, true, MyBufferType.HEAP},
+                    {MyByteOrder.BIG, false, MyBufferType.HEAP},
+                    {MyByteOrder.LITTLE, false, MyBufferType.HEAP},
+                    {MyByteOrder.BIG, true, MyBufferType.MAPPED},
+                    {MyByteOrder.LITTLE, true, MyBufferType.MAPPED},
+                    {MyByteOrder.BIG, false, MyBufferType.MAPPED},
+                    {MyByteOrder.LITTLE, false, MyBufferType.MAPPED}
+                });
+    }
+
+    @Parameterized.Parameter(0)
+    public MyByteOrder mByteOrder;
+
+    @Parameterized.Parameter(1)
+    public boolean mAligned;
+
+    enum MyBufferType {
+        DIRECT,
+        HEAP,
+        MAPPED;
+    }
+
+    @Parameterized.Parameter(2)
+    public MyBufferType mBufferType;
+
+    public static ByteBuffer newBuffer(
+            MyByteOrder byteOrder, boolean aligned, MyBufferType bufferType) throws IOException {
+        int size = aligned ? 8192 : 8192 + 8 + 1;
+        ByteBuffer result = null;
+        switch (bufferType) {
+            case DIRECT:
+                result = ByteBuffer.allocateDirect(size);
+                break;
+            case HEAP:
+                result = ByteBuffer.allocate(size);
+                break;
+            case MAPPED:
+                File tmpFile = new File("/sdcard/bm.tmp");
+                if (new File("/tmp").isDirectory()) {
+                    // We're running on the desktop.
+                    tmpFile = File.createTempFile("MappedByteBufferTest", ".tmp");
+                }
+                tmpFile.createNewFile();
+                tmpFile.deleteOnExit();
+                RandomAccessFile raf = new RandomAccessFile(tmpFile, "rw");
+                raf.setLength(8192 * 8);
+                FileChannel fc = raf.getChannel();
+                result = fc.map(FileChannel.MapMode.READ_WRITE, 0, fc.size());
+                break;
+        }
+        result.order(byteOrder.mByteOrder);
+        result.position(aligned ? 0 : 1);
+        return result;
+    }
+
+    //
+    // peeking
+    //
+
+    @Test
+    public void timeByteBuffer_getByte() throws Exception {
+        ByteBuffer src = ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            src.position(mAligned ? 0 : 1);
+            for (int i = 0; i < 1024; ++i) {
+                src.get();
+            }
+        }
+    }
+
+    @Test
+    public void timeByteBuffer_getByteArray() throws Exception {
+        ByteBuffer src = ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType);
+        byte[] dst = new byte[1024];
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            for (int i = 0; i < 1024; ++i) {
+                src.position(mAligned ? 0 : 1);
+                src.get(dst);
+            }
+        }
+    }
+
+    @Test
+    public void timeByteBuffer_getByte_indexed() throws Exception {
+        ByteBuffer src = ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            src.position(mAligned ? 0 : 1);
+            for (int i = 0; i < 1024; ++i) {
+                src.get(i);
+            }
+        }
+    }
+
+    @Test
+    public void timeByteBuffer_getChar() throws Exception {
+        ByteBuffer src = ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            src.position(mAligned ? 0 : 1);
+            for (int i = 0; i < 1024; ++i) {
+                src.getChar();
+            }
+        }
+    }
+
+    @Test
+    public void timeCharBuffer_getCharArray() throws Exception {
+        CharBuffer src =
+                ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType).asCharBuffer();
+        char[] dst = new char[1024];
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            for (int i = 0; i < 1024; ++i) {
+                src.position(0);
+                src.get(dst);
+            }
+        }
+    }
+
+    @Test
+    public void timeByteBuffer_getChar_indexed() throws Exception {
+        ByteBuffer src = ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            src.position(mAligned ? 0 : 1);
+            for (int i = 0; i < 1024; ++i) {
+                src.getChar(i * 2);
+            }
+        }
+    }
+
+    @Test
+    public void timeByteBuffer_getDouble() throws Exception {
+        ByteBuffer src = ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            src.position(mAligned ? 0 : 1);
+            for (int i = 0; i < 1024; ++i) {
+                src.getDouble();
+            }
+        }
+    }
+
+    @Test
+    public void timeDoubleBuffer_getDoubleArray() throws Exception {
+        DoubleBuffer src =
+                ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType).asDoubleBuffer();
+        double[] dst = new double[1024];
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            for (int i = 0; i < 1024; ++i) {
+                src.position(0);
+                src.get(dst);
+            }
+        }
+    }
+
+    @Test
+    public void timeByteBuffer_getFloat() throws Exception {
+        ByteBuffer src = ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            src.position(mAligned ? 0 : 1);
+            for (int i = 0; i < 1024; ++i) {
+                src.getFloat();
+            }
+        }
+    }
+
+    @Test
+    public void timeFloatBuffer_getFloatArray() throws Exception {
+        FloatBuffer src =
+                ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType).asFloatBuffer();
+        float[] dst = new float[1024];
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            for (int i = 0; i < 1024; ++i) {
+                src.position(0);
+                src.get(dst);
+            }
+        }
+    }
+
+    @Test
+    public void timeByteBuffer_getInt() throws Exception {
+        ByteBuffer src = ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            src.position(mAligned ? 0 : 1);
+            for (int i = 0; i < 1024; ++i) {
+                src.getInt();
+            }
+        }
+    }
+
+    @Test
+    public void timeIntBuffer_getIntArray() throws Exception {
+        IntBuffer src =
+                ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType).asIntBuffer();
+        int[] dst = new int[1024];
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            for (int i = 0; i < 1024; ++i) {
+                src.position(0);
+                src.get(dst);
+            }
+        }
+    }
+
+    @Test
+    public void timeByteBuffer_getLong() throws Exception {
+        ByteBuffer src = ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            src.position(mAligned ? 0 : 1);
+            for (int i = 0; i < 1024; ++i) {
+                src.getLong();
+            }
+        }
+    }
+
+    @Test
+    public void timeLongBuffer_getLongArray() throws Exception {
+        LongBuffer src =
+                ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType).asLongBuffer();
+        long[] dst = new long[1024];
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            for (int i = 0; i < 1024; ++i) {
+                src.position(0);
+                src.get(dst);
+            }
+        }
+    }
+
+    @Test
+    public void timeByteBuffer_getShort() throws Exception {
+        ByteBuffer src = ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            src.position(mAligned ? 0 : 1);
+            for (int i = 0; i < 1024; ++i) {
+                src.getShort();
+            }
+        }
+    }
+
+    @Test
+    public void timeShortBuffer_getShortArray() throws Exception {
+        ShortBuffer src =
+                ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType).asShortBuffer();
+        short[] dst = new short[1024];
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            for (int i = 0; i < 1024; ++i) {
+                src.position(0);
+                src.get(dst);
+            }
+        }
+    }
+
+    //
+    // poking
+    //
+
+    @Test
+    public void timeByteBuffer_putByte() throws Exception {
+        ByteBuffer src = ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            src.position(0);
+            for (int i = 0; i < 1024; ++i) {
+                src.put((byte) 0);
+            }
+        }
+    }
+
+    @Test
+    public void timeByteBuffer_putByteArray() throws Exception {
+        ByteBuffer dst = ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType);
+        byte[] src = new byte[1024];
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            for (int i = 0; i < 1024; ++i) {
+                dst.position(mAligned ? 0 : 1);
+                dst.put(src);
+            }
+        }
+    }
+
+    @Test
+    public void timeByteBuffer_putChar() throws Exception {
+        ByteBuffer src = ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            src.position(mAligned ? 0 : 1);
+            for (int i = 0; i < 1024; ++i) {
+                src.putChar(' ');
+            }
+        }
+    }
+
+    @Test
+    public void timeCharBuffer_putCharArray() throws Exception {
+        CharBuffer dst =
+                ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType).asCharBuffer();
+        char[] src = new char[1024];
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            for (int i = 0; i < 1024; ++i) {
+                dst.position(0);
+                dst.put(src);
+            }
+        }
+    }
+
+    @Test
+    public void timeByteBuffer_putDouble() throws Exception {
+        ByteBuffer src = ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            src.position(mAligned ? 0 : 1);
+            for (int i = 0; i < 1024; ++i) {
+                src.putDouble(0.0);
+            }
+        }
+    }
+
+    @Test
+    public void timeDoubleBuffer_putDoubleArray() throws Exception {
+        DoubleBuffer dst =
+                ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType).asDoubleBuffer();
+        double[] src = new double[1024];
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            for (int i = 0; i < 1024; ++i) {
+                dst.position(0);
+                dst.put(src);
+            }
+        }
+    }
+
+    @Test
+    public void timeByteBuffer_putFloat() throws Exception {
+        ByteBuffer src = ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            src.position(mAligned ? 0 : 1);
+            for (int i = 0; i < 1024; ++i) {
+                src.putFloat(0.0f);
+            }
+        }
+    }
+
+    @Test
+    public void timeFloatBuffer_putFloatArray() throws Exception {
+        FloatBuffer dst =
+                ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType).asFloatBuffer();
+        float[] src = new float[1024];
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            for (int i = 0; i < 1024; ++i) {
+                dst.position(0);
+                dst.put(src);
+            }
+        }
+    }
+
+    @Test
+    public void timeByteBuffer_putInt() throws Exception {
+        ByteBuffer src = ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            src.position(mAligned ? 0 : 1);
+            for (int i = 0; i < 1024; ++i) {
+                src.putInt(0);
+            }
+        }
+    }
+
+    @Test
+    public void timeIntBuffer_putIntArray() throws Exception {
+        IntBuffer dst =
+                ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType).asIntBuffer();
+        int[] src = new int[1024];
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            for (int i = 0; i < 1024; ++i) {
+                dst.position(0);
+                dst.put(src);
+            }
+        }
+    }
+
+    @Test
+    public void timeByteBuffer_putLong() throws Exception {
+        ByteBuffer src = ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            src.position(mAligned ? 0 : 1);
+            for (int i = 0; i < 1024; ++i) {
+                src.putLong(0L);
+            }
+        }
+    }
+
+    @Test
+    public void timeLongBuffer_putLongArray() throws Exception {
+        LongBuffer dst =
+                ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType).asLongBuffer();
+        long[] src = new long[1024];
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            for (int i = 0; i < 1024; ++i) {
+                dst.position(0);
+                dst.put(src);
+            }
+        }
+    }
+
+    @Test
+    public void timeByteBuffer_putShort() throws Exception {
+        ByteBuffer src = ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            src.position(mAligned ? 0 : 1);
+            for (int i = 0; i < 1024; ++i) {
+                src.putShort((short) 0);
+            }
+        }
+    }
+
+    @Test
+    public void timeShortBuffer_putShortArray() throws Exception {
+        ShortBuffer dst =
+                ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType).asShortBuffer();
+        short[] src = new short[1024];
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            for (int i = 0; i < 1024; ++i) {
+                dst.position(0);
+                dst.put(src);
+            }
+        }
+    }
+
+    @Test
+    public void time_new_byteArray() throws Exception {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            byte[] bs = new byte[8192];
+        }
+    }
+
+    @Test
+    public void time_ByteBuffer_allocate() throws Exception {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        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
new file mode 100644
index 0000000..81f9e59
--- /dev/null
+++ b/apct-tests/perftests/core/src/android/libcore/regression/ByteBufferScalarVersusVectorPerfTest.java
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.libcore.regression;
+
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
+
+import java.nio.ByteBuffer;
+import java.util.Arrays;
+import java.util.Collection;
+
+@RunWith(Parameterized.class)
+@LargeTest
+public class ByteBufferScalarVersusVectorPerfTest {
+    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+    @Parameters(name = "mByteOrder={0}, mAligned={1}, mBufferType={2}")
+    public static Collection<Object[]> data() {
+        return Arrays.asList(
+                new Object[][] {
+                    {
+                        ByteBufferPerfTest.MyByteOrder.BIG,
+                        true,
+                        ByteBufferPerfTest.MyBufferType.DIRECT
+                    },
+                    {
+                        ByteBufferPerfTest.MyByteOrder.LITTLE,
+                        true,
+                        ByteBufferPerfTest.MyBufferType.DIRECT
+                    },
+                    {
+                        ByteBufferPerfTest.MyByteOrder.BIG,
+                        false,
+                        ByteBufferPerfTest.MyBufferType.DIRECT
+                    },
+                    {
+                        ByteBufferPerfTest.MyByteOrder.LITTLE,
+                        false,
+                        ByteBufferPerfTest.MyBufferType.DIRECT
+                    },
+                    {
+                        ByteBufferPerfTest.MyByteOrder.BIG,
+                        true,
+                        ByteBufferPerfTest.MyBufferType.HEAP
+                    },
+                    {
+                        ByteBufferPerfTest.MyByteOrder.LITTLE,
+                        true,
+                        ByteBufferPerfTest.MyBufferType.HEAP
+                    },
+                    {
+                        ByteBufferPerfTest.MyByteOrder.BIG,
+                        false,
+                        ByteBufferPerfTest.MyBufferType.HEAP
+                    },
+                    {
+                        ByteBufferPerfTest.MyByteOrder.LITTLE,
+                        false,
+                        ByteBufferPerfTest.MyBufferType.HEAP
+                    },
+                    {
+                        ByteBufferPerfTest.MyByteOrder.BIG,
+                        true,
+                        ByteBufferPerfTest.MyBufferType.MAPPED
+                    },
+                    {
+                        ByteBufferPerfTest.MyByteOrder.LITTLE,
+                        true,
+                        ByteBufferPerfTest.MyBufferType.MAPPED
+                    },
+                    {
+                        ByteBufferPerfTest.MyByteOrder.BIG,
+                        false,
+                        ByteBufferPerfTest.MyBufferType.MAPPED
+                    },
+                    {
+                        ByteBufferPerfTest.MyByteOrder.LITTLE,
+                        false,
+                        ByteBufferPerfTest.MyBufferType.MAPPED
+                    }
+                });
+    }
+
+    @Parameterized.Parameter(0)
+    public ByteBufferPerfTest.MyByteOrder mByteOrder;
+
+    @Parameterized.Parameter(1)
+    public boolean mAligned;
+
+    @Parameterized.Parameter(2)
+    public ByteBufferPerfTest.MyBufferType mBufferType;
+
+    @Test
+    public void timeManualByteBufferCopy() throws Exception {
+        ByteBuffer src = ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType);
+        ByteBuffer dst = ByteBufferPerfTest.newBuffer(mByteOrder, mAligned, mBufferType);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            src.position(0);
+            dst.position(0);
+            for (int i = 0; i < 8192; ++i) {
+                dst.put(src.get());
+            }
+        }
+    }
+
+    @Test
+    public void timeByteBufferBulkGet() throws Exception {
+        ByteBuffer src = ByteBuffer.allocate(mAligned ? 8192 : 8192 + 1);
+        byte[] dst = new byte[8192];
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            src.position(mAligned ? 0 : 1);
+            src.get(dst, 0, dst.length);
+        }
+    }
+
+    @Test
+    public void timeDirectByteBufferBulkGet() throws Exception {
+        ByteBuffer src = ByteBuffer.allocateDirect(mAligned ? 8192 : 8192 + 1);
+        byte[] dst = new byte[8192];
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            src.position(mAligned ? 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
new file mode 100644
index 0000000..28ec6de
--- /dev/null
+++ b/apct-tests/perftests/core/src/android/libcore/regression/CharacterPerfTest.java
@@ -0,0 +1,359 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.libcore.regression;
+
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
+
+import java.util.Arrays;
+import java.util.Collection;
+
+/**
+ * Tests various Character methods, intended for testing multiple implementations against each
+ * other.
+ */
+@RunWith(Parameterized.class)
+@LargeTest
+public class CharacterPerfTest {
+    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+    @Parameters(name = "mCharacterSet({0}), mOverload({1})")
+    public static Collection<Object[]> data() {
+        return Arrays.asList(
+                new Object[][] {
+                    {CharacterSet.ASCII, Overload.CHAR},
+                    {CharacterSet.ASCII, Overload.INT},
+                    {CharacterSet.UNICODE, Overload.CHAR},
+                    {CharacterSet.UNICODE, Overload.INT}
+                });
+    }
+
+    @Parameterized.Parameter(0)
+    public CharacterSet mCharacterSet;
+
+    @Parameterized.Parameter(1)
+    public Overload mOverload;
+
+    private char[] mChars;
+
+    @Before
+    public void setUp() throws Exception {
+        this.mChars = mCharacterSet.mChars;
+    }
+
+    public enum Overload {
+        CHAR,
+        INT
+    }
+
+    public double nanosToUnits(double nanos) {
+        return nanos / 65536;
+    }
+
+    public enum CharacterSet {
+        ASCII(128),
+        UNICODE(65536);
+        final char[] mChars;
+
+        CharacterSet(int size) {
+            this.mChars = new char[65536];
+            for (int i = 0; i < 65536; ++i) {
+                mChars[i] = (char) (i % size);
+            }
+        }
+    }
+
+    // A fake benchmark to give us a baseline.
+    @Test
+    public void timeIsSpace() {
+        boolean fake = false;
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        if (mOverload == Overload.CHAR) {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    fake ^= ((char) ch == ' ');
+                }
+            }
+        } else {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    fake ^= (ch == ' ');
+                }
+            }
+        }
+    }
+
+    @Test
+    public void timeDigit() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        if (mOverload == Overload.CHAR) {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.digit(mChars[ch], 10);
+                }
+            }
+        } else {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.digit((int) mChars[ch], 10);
+                }
+            }
+        }
+    }
+
+    @Test
+    public void timeGetNumericValue() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        if (mOverload == Overload.CHAR) {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.getNumericValue(mChars[ch]);
+                }
+            }
+        } else {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.getNumericValue((int) mChars[ch]);
+                }
+            }
+        }
+    }
+
+    @Test
+    public void timeIsDigit() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        if (mOverload == Overload.CHAR) {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.isDigit(mChars[ch]);
+                }
+            }
+        } else {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.isDigit((int) mChars[ch]);
+                }
+            }
+        }
+    }
+
+    @Test
+    public void timeIsIdentifierIgnorable() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        if (mOverload == Overload.CHAR) {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.isIdentifierIgnorable(mChars[ch]);
+                }
+            }
+        } else {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.isIdentifierIgnorable((int) mChars[ch]);
+                }
+            }
+        }
+    }
+
+    @Test
+    public void timeIsJavaIdentifierPart() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        if (mOverload == Overload.CHAR) {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.isJavaIdentifierPart(mChars[ch]);
+                }
+            }
+        } else {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.isJavaIdentifierPart((int) mChars[ch]);
+                }
+            }
+        }
+    }
+
+    @Test
+    public void timeIsJavaIdentifierStart() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        if (mOverload == Overload.CHAR) {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.isJavaIdentifierStart(mChars[ch]);
+                }
+            }
+        } else {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.isJavaIdentifierStart((int) mChars[ch]);
+                }
+            }
+        }
+    }
+
+    @Test
+    public void timeIsLetter() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        if (mOverload == Overload.CHAR) {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.isLetter(mChars[ch]);
+                }
+            }
+        } else {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.isLetter((int) mChars[ch]);
+                }
+            }
+        }
+    }
+
+    @Test
+    public void timeIsLetterOrDigit() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        if (mOverload == Overload.CHAR) {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.isLetterOrDigit(mChars[ch]);
+                }
+            }
+        } else {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.isLetterOrDigit((int) mChars[ch]);
+                }
+            }
+        }
+    }
+
+    @Test
+    public void timeIsLowerCase() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        if (mOverload == Overload.CHAR) {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.isLowerCase(mChars[ch]);
+                }
+            }
+        } else {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.isLowerCase((int) mChars[ch]);
+                }
+            }
+        }
+    }
+
+    @Test
+    public void timeIsSpaceChar() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        if (mOverload == Overload.CHAR) {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.isSpaceChar(mChars[ch]);
+                }
+            }
+        } else {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.isSpaceChar((int) mChars[ch]);
+                }
+            }
+        }
+    }
+
+    @Test
+    public void timeIsUpperCase() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        if (mOverload == Overload.CHAR) {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.isUpperCase(mChars[ch]);
+                }
+            }
+        } else {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.isUpperCase((int) mChars[ch]);
+                }
+            }
+        }
+    }
+
+    @Test
+    public void timeIsWhitespace() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        if (mOverload == Overload.CHAR) {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.isWhitespace(mChars[ch]);
+                }
+            }
+        } else {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.isWhitespace((int) mChars[ch]);
+                }
+            }
+        }
+    }
+
+    @Test
+    public void timeToLowerCase() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        if (mOverload == Overload.CHAR) {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.toLowerCase(mChars[ch]);
+                }
+            }
+        } else {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.toLowerCase((int) mChars[ch]);
+                }
+            }
+        }
+    }
+
+    @Test
+    public void timeToUpperCase() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        if (mOverload == Overload.CHAR) {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.toUpperCase(mChars[ch]);
+                }
+            }
+        } else {
+            while (state.keepRunning()) {
+                for (int ch = 0; ch < 65536; ++ch) {
+                    Character.toUpperCase((int) mChars[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
new file mode 100644
index 0000000..603b182
--- /dev/null
+++ b/apct-tests/perftests/core/src/android/libcore/regression/CharsetForNamePerfTest.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.libcore.regression;
+
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+
+import java.nio.charset.Charset;
+import java.util.Arrays;
+import java.util.Collection;
+
+@RunWith(Parameterized.class)
+@LargeTest
+public class CharsetForNamePerfTest {
+    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+    @Parameterized.Parameters(name = "mCharsetName({0})")
+    public static Collection<Object[]> data() {
+        return Arrays.asList(
+                new Object[][] {
+                    {"UTF-16"},
+                    {"UTF-8"},
+                    {"UTF8"},
+                    {"ISO-8859-1"},
+                    {"8859_1"},
+                    {"ISO-8859-2"},
+                    {"8859_2"},
+                    {"US-ASCII"},
+                    {"ASCII"},
+                });
+    }
+
+    @Parameterized.Parameter(0)
+    public String mCharsetName;
+
+    @Test
+    public void timeCharsetForName() throws Exception {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            Charset.forName(mCharsetName);
+        }
+    }
+}
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/CharsetPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/CharsetPerfTest.java
new file mode 100644
index 0000000..437d186
--- /dev/null
+++ b/apct-tests/perftests/core/src/android/libcore/regression/CharsetPerfTest.java
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.libcore.regression;
+
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
+
+import java.util.Arrays;
+import java.util.Collection;
+
+@RunWith(Parameterized.class)
+@LargeTest
+public class CharsetPerfTest {
+    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+    @Parameters(name = "mLength({0}), mName({1})")
+    public static Collection<Object[]> data() {
+        return Arrays.asList(
+                new Object[][] {
+                    {1, "UTF-16"},
+                    {1, "UTF-8"},
+                    {1, "UTF8"},
+                    {1, "ISO-8859-1"},
+                    {1, "8859_1"},
+                    {1, "ISO-8859-2"},
+                    {1, "8859_2"},
+                    {1, "US-ASCII"},
+                    {1, "ASCII"},
+                    {10, "UTF-16"},
+                    {10, "UTF-8"},
+                    {10, "UTF8"},
+                    {10, "ISO-8859-1"},
+                    {10, "8859_1"},
+                    {10, "ISO-8859-2"},
+                    {10, "8859_2"},
+                    {10, "US-ASCII"},
+                    {10, "ASCII"},
+                    {100, "UTF-16"},
+                    {100, "UTF-8"},
+                    {100, "UTF8"},
+                    {100, "ISO-8859-1"},
+                    {100, "8859_1"},
+                    {100, "ISO-8859-2"},
+                    {100, "8859_2"},
+                    {100, "US-ASCII"},
+                    {100, "ASCII"},
+                    {1000, "UTF-16"},
+                    {1000, "UTF-8"},
+                    {1000, "UTF8"},
+                    {1000, "ISO-8859-1"},
+                    {1000, "8859_1"},
+                    {1000, "ISO-8859-2"},
+                    {1000, "8859_2"},
+                    {1000, "US-ASCII"},
+                    {1000, "ASCII"},
+                    {10000, "UTF-16"},
+                    {10000, "UTF-8"},
+                    {10000, "UTF8"},
+                    {10000, "ISO-8859-1"},
+                    {10000, "8859_1"},
+                    {10000, "ISO-8859-2"},
+                    {10000, "8859_2"},
+                    {10000, "US-ASCII"},
+                    {10000, "ASCII"},
+                });
+    }
+
+    @Parameterized.Parameter(0)
+    public int mLength;
+
+    @Parameterized.Parameter(1)
+    public String mName;
+
+    @Test
+    public void time_new_String_BString() throws Exception {
+        byte[] bytes = makeBytes(makeString(mLength));
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            new String(bytes, mName);
+        }
+    }
+
+    @Test
+    public void time_new_String_BII() throws Exception {
+        byte[] bytes = makeBytes(makeString(mLength));
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            new String(bytes, 0, bytes.length);
+        }
+    }
+
+    @Test
+    public void time_new_String_BIIString() throws Exception {
+        byte[] bytes = makeBytes(makeString(mLength));
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            new String(bytes, 0, bytes.length, mName);
+        }
+    }
+
+    @Test
+    public void time_String_getBytes() throws Exception {
+        String string = makeString(mLength);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            string.getBytes(mName);
+        }
+    }
+
+    private static String makeString(int length) {
+        StringBuilder result = new StringBuilder(length);
+        for (int i = 0; i < length; ++i) {
+            result.append('A' + (i % 26));
+        }
+        return result.toString();
+    }
+
+    private static byte[] makeBytes(String s) {
+        try {
+            return s.getBytes("US-ASCII");
+        } catch (Exception ex) {
+            throw new RuntimeException(ex);
+        }
+    }
+}
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/CharsetUtf8PerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/CharsetUtf8PerfTest.java
new file mode 100644
index 0000000..f31e9c1
--- /dev/null
+++ b/apct-tests/perftests/core/src/android/libcore/regression/CharsetUtf8PerfTest.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.libcore.regression;
+
+import android.icu.lang.UCharacter;
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import androidx.test.runner.AndroidJUnit4;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.nio.charset.Charset;
+
+/**
+ * Decode the same size of ASCII, BMP, Supplementary character using fast-path UTF-8 decoder. The
+ * fast-path code is in {@link StringFactory#newStringFromBytes(byte[], int, int, Charset)}
+ */
+@RunWith(AndroidJUnit4.class)
+@LargeTest
+public class CharsetUtf8PerfTest {
+    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+    private final int mNoOfBytes = 0x100; // 4MB
+
+    private void makeUnicodeRange(int startingCodePoint, int endingCodePoint, int repeated) {
+        StringBuilder builder = new StringBuilder();
+        for (int codePoint = startingCodePoint; codePoint <= endingCodePoint; codePoint++) {
+            if (codePoint < Character.MIN_SURROGATE || codePoint > Character.MAX_SURROGATE) {
+                builder.append(UCharacter.toString(codePoint));
+            }
+        }
+
+        String str = builder.toString();
+        StringBuilder builder2 = new StringBuilder();
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            for (int i = 0; i < repeated; i++) {
+                builder2.append(str);
+            }
+        }
+    }
+
+    @Test
+    public void time_ascii() {
+        makeUnicodeRange(0, 0x7f, mNoOfBytes / 0x80);
+    }
+
+    @Test
+    public void time_bmp2() {
+        makeUnicodeRange(0x0080, 0x07ff, mNoOfBytes / 2 / 0x780);
+    }
+
+    @Test
+    public void time_bmp3() {
+        makeUnicodeRange(
+                0x0800,
+                0xffff,
+                mNoOfBytes / 3 / 0xf000 /* 0x10000 - 0x0800 - no of surrogate code points */);
+    }
+
+    @Test
+    public void time_supplementary() {
+        makeUnicodeRange(0x10000, 0x10ffff, mNoOfBytes / 4 / 0x100000);
+    }
+}
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/ChecksumPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/ChecksumPerfTest.java
new file mode 100644
index 0000000..1d33fcb
--- /dev/null
+++ b/apct-tests/perftests/core/src/android/libcore/regression/ChecksumPerfTest.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.libcore.regression;
+
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import androidx.test.runner.AndroidJUnit4;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.util.zip.Adler32;
+import java.util.zip.CRC32;
+
+@RunWith(AndroidJUnit4.class)
+@LargeTest
+public class ChecksumPerfTest {
+    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+    @Test
+    public void timeAdler_block() throws Exception {
+        byte[] bytes = new byte[10000];
+        Adler32 adler = new Adler32();
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            adler.update(bytes);
+        }
+    }
+
+    @Test
+    public void timeAdler_byte() throws Exception {
+        Adler32 adler = new Adler32();
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            adler.update(1);
+        }
+    }
+
+    @Test
+    public void timeCrc_block() throws Exception {
+        byte[] bytes = new byte[10000];
+        CRC32 crc = new CRC32();
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            crc.update(bytes);
+        }
+    }
+
+    @Test
+    public void timeCrc_byte() throws Exception {
+        CRC32 crc = new CRC32();
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        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
new file mode 100644
index 0000000..35730ec
--- /dev/null
+++ b/apct-tests/perftests/core/src/android/libcore/regression/CipherInputStreamPerfTest.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.libcore.regression;
+
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import androidx.test.runner.AndroidJUnit4;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.io.ByteArrayInputStream;
+import java.io.InputStream;
+import java.security.spec.AlgorithmParameterSpec;
+
+import javax.crypto.Cipher;
+import javax.crypto.CipherInputStream;
+import javax.crypto.KeyGenerator;
+import javax.crypto.SecretKey;
+import javax.crypto.spec.IvParameterSpec;
+
+/** CipherInputStream benchmark. */
+@RunWith(AndroidJUnit4.class)
+@LargeTest
+public class CipherInputStreamPerfTest {
+    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+    private static final int DATA_SIZE = 1024 * 1024;
+    private static final byte[] DATA = new byte[DATA_SIZE];
+
+    private static final int IV_SIZE = 16;
+    private static final byte[] IV = new byte[IV_SIZE];
+
+    static {
+        for (int i = 0; i < DATA_SIZE; i++) {
+            DATA[i] = (byte) i;
+        }
+        for (int i = 0; i < IV_SIZE; i++) {
+            IV[i] = (byte) i;
+        }
+    }
+
+    private SecretKey mKey;
+
+    private byte[] mOutput = new byte[8192];
+
+    private Cipher mCipherEncrypt;
+
+    private AlgorithmParameterSpec mSpec;
+
+    @Before
+    public void setUp() throws Exception {
+        KeyGenerator generator = KeyGenerator.getInstance("AES");
+        generator.init(128);
+        mKey = generator.generateKey();
+
+        mSpec = new IvParameterSpec(IV);
+
+        mCipherEncrypt = Cipher.getInstance("AES/CBC/PKCS5Padding");
+        mCipherEncrypt.init(Cipher.ENCRYPT_MODE, mKey, mSpec);
+    }
+
+    @Test
+    public void timeEncrypt() throws Exception {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            mCipherEncrypt.init(Cipher.ENCRYPT_MODE, mKey, mSpec);
+            InputStream is = new CipherInputStream(new ByteArrayInputStream(DATA), mCipherEncrypt);
+            while (is.read(mOutput) != -1) {
+                // Keep iterating
+            }
+        }
+    }
+}
diff --git a/apct-tests/perftests/core/src/android/libcore/regression/CipherPerfTest.java b/apct-tests/perftests/core/src/android/libcore/regression/CipherPerfTest.java
new file mode 100644
index 0000000..15c27f2
--- /dev/null
+++ b/apct-tests/perftests/core/src/android/libcore/regression/CipherPerfTest.java
@@ -0,0 +1,210 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.libcore.regression;
+
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+
+import java.security.spec.AlgorithmParameterSpec;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.crypto.Cipher;
+import javax.crypto.KeyGenerator;
+import javax.crypto.SecretKey;
+import javax.crypto.spec.IvParameterSpec;
+
+/**
+ * Cipher benchmarks. Only runs on AES currently because of the combinatorial explosion of the test
+ * as it stands.
+ */
+@RunWith(Parameterized.class)
+@LargeTest
+public class CipherPerfTest {
+    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+    @Parameterized.Parameters(
+            name =
+                    "mMode({0}), mPadding({1}), mKeySize({2}), mInputSize({3}),"
+                            + " mImplementation({4})")
+    public static Collection cases() {
+        int[] mKeySizes = new int[] {128, 192, 256};
+        int[] inputSizes = new int[] {16, 32, 64, 128, 1024, 8192};
+        final List<Object[]> params = new ArrayList<>();
+        for (Mode mode : Mode.values()) {
+            for (Padding padding : Padding.values()) {
+                for (Implementation implementation : Implementation.values()) {
+                    if ((mode == Mode.CBC
+                                    || mode == Mode.CFB
+                                    || mode == Mode.CTR
+                                    || mode == Mode.ECB
+                                    || mode == Mode.OFB)
+                            && padding == Padding.PKCS1PADDING) {
+                        continue;
+                    }
+                    if ((mode == Mode.CFB || mode == Mode.OFB)
+                            && padding == Padding.NOPADDING
+                            && implementation == Implementation.OpenSSL) {
+                        continue;
+                    }
+                    for (int mKeySize : mKeySizes) {
+                        for (int inputSize : inputSizes) {
+                            params.add(
+                                    new Object[] {
+                                        mode, padding, mKeySize, inputSize, implementation
+                                    });
+                        }
+                    }
+                }
+            }
+        }
+        return params;
+    }
+
+    private static final int DATA_SIZE = 8192;
+    private static final byte[] DATA = new byte[DATA_SIZE];
+
+    private static final int IV_SIZE = 16;
+
+    private static final byte[] IV = new byte[IV_SIZE];
+
+    static {
+        for (int i = 0; i < DATA_SIZE; i++) {
+            DATA[i] = (byte) i;
+        }
+        for (int i = 0; i < IV_SIZE; i++) {
+            IV[i] = (byte) i;
+        }
+    }
+
+    public Algorithm mAlgorithm = Algorithm.AES;
+
+    public enum Algorithm {
+        AES,
+    };
+
+    @Parameterized.Parameter(0)
+    public Mode mMode;
+
+    public enum Mode {
+        CBC,
+        CFB,
+        CTR,
+        ECB,
+        OFB,
+    };
+
+    @Parameterized.Parameter(1)
+    public Padding mPadding;
+
+    public enum Padding {
+        NOPADDING,
+        PKCS1PADDING,
+    };
+
+    @Parameterized.Parameter(2)
+    public int mKeySize;
+
+    @Parameterized.Parameter(3)
+    public int mInputSize;
+
+    @Parameterized.Parameter(4)
+    public Implementation mImplementation;
+
+    public enum Implementation {
+        OpenSSL,
+        BouncyCastle
+    };
+
+    private String mProviderName;
+
+    // Key generation isn't part of the benchmark so cache the results
+    private static Map<Integer, SecretKey> sKeySizes = new HashMap<Integer, SecretKey>();
+
+    private String mCipherAlgorithm;
+    private SecretKey mKey;
+
+    private byte[] mOutput = new byte[DATA.length];
+
+    private Cipher mCipherEncrypt;
+
+    private Cipher mCipherDecrypt;
+
+    private AlgorithmParameterSpec mSpec;
+
+    @Before
+    public void setUp() throws Exception {
+        mCipherAlgorithm =
+                mAlgorithm.toString() + "/" + mMode.toString() + "/" + mPadding.toString();
+
+        String mKeyAlgorithm = mAlgorithm.toString();
+        mKey = sKeySizes.get(mKeySize);
+        if (mKey == null) {
+            KeyGenerator generator = KeyGenerator.getInstance(mKeyAlgorithm);
+            generator.init(mKeySize);
+            mKey = generator.generateKey();
+            sKeySizes.put(mKeySize, mKey);
+        }
+
+        switch (mImplementation) {
+            case OpenSSL:
+                mProviderName = "AndroidOpenSSL";
+                break;
+            case BouncyCastle:
+                mProviderName = "BC";
+                break;
+            default:
+                throw new RuntimeException(mImplementation.toString());
+        }
+
+        if (mMode != Mode.ECB) {
+            mSpec = new IvParameterSpec(IV);
+        }
+
+        mCipherEncrypt = Cipher.getInstance(mCipherAlgorithm, mProviderName);
+        mCipherEncrypt.init(Cipher.ENCRYPT_MODE, mKey, mSpec);
+
+        mCipherDecrypt = Cipher.getInstance(mCipherAlgorithm, mProviderName);
+        mCipherDecrypt.init(Cipher.DECRYPT_MODE, mKey, mSpec);
+    }
+
+    @Test
+    public void timeEncrypt() throws Exception {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            mCipherEncrypt.doFinal(DATA, 0, mInputSize, mOutput);
+        }
+    }
+
+    @Test
+    public void timeDecrypt() throws Exception {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            mCipherDecrypt.doFinal(DATA, 0, mInputSize, 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
new file mode 100644
index 0000000..6728e73
--- /dev/null
+++ b/apct-tests/perftests/core/src/android/libcore/regression/CollatorPerfTest.java
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.libcore.regression;
+
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import androidx.test.runner.AndroidJUnit4;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.text.Collator;
+import java.text.RuleBasedCollator;
+import java.util.Locale;
+
+@RunWith(AndroidJUnit4.class)
+@LargeTest
+public class CollatorPerfTest {
+    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+    private static final RuleBasedCollator COLLATOR =
+            (RuleBasedCollator) Collator.getInstance(Locale.US);
+
+    @Test
+    public void timeCollatorPrimary() {
+        COLLATOR.setStrength(Collator.PRIMARY);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            COLLATOR.compare("abcde", "abcdf");
+            COLLATOR.compare("abcde", "abcde");
+            COLLATOR.compare("abcdf", "abcde");
+        }
+    }
+
+    @Test
+    public void timeCollatorSecondary() {
+        COLLATOR.setStrength(Collator.SECONDARY);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            COLLATOR.compare("abcdÂ", "abcdÄ");
+            COLLATOR.compare("abcdÂ", "abcdÂ");
+            COLLATOR.compare("abcdÄ", "abcdÂ");
+        }
+    }
+
+    @Test
+    public void timeCollatorTertiary() {
+        COLLATOR.setStrength(Collator.TERTIARY);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            COLLATOR.compare("abcdE", "abcde");
+            COLLATOR.compare("abcde", "abcde");
+            COLLATOR.compare("abcde", "abcdE");
+        }
+    }
+
+    @Test
+    public void timeCollatorIdentical() {
+        COLLATOR.setStrength(Collator.IDENTICAL);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            COLLATOR.compare("abcdȪ", "abcdȫ");
+            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
new file mode 100644
index 0000000..a89efff
--- /dev/null
+++ b/apct-tests/perftests/core/src/android/libcore/regression/CollectionsPerfTest.java
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.libcore.regression;
+
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+import java.util.Random;
+import java.util.Vector;
+
+@RunWith(Parameterized.class)
+@LargeTest
+public class CollectionsPerfTest {
+    @Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+    @Parameters(name = "mArrayListLength({0})")
+    public static Collection<Object[]> data() {
+        return Arrays.asList(new Object[][] {{4}, {16}, {64}, {256}, {1024}});
+    }
+
+    @Parameterized.Parameter(0)
+    public int arrayListLength;
+
+    public static Comparator<Integer> REVERSE =
+            new Comparator<Integer>() {
+                @Override
+                public int compare(Integer lhs, Integer rhs) {
+                    int lhsAsInt = lhs.intValue();
+                    int rhsAsInt = rhs.intValue();
+                    return rhsAsInt < lhsAsInt ? -1 : (lhsAsInt == rhsAsInt ? 0 : 1);
+                }
+            };
+
+    @Test
+    public void timeSort_arrayList() throws Exception {
+        List<Integer> input = buildList(arrayListLength, ArrayList.class);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            Collections.sort(input);
+        }
+    }
+
+    @Test
+    public void timeSortWithComparator_arrayList() throws Exception {
+        List<Integer> input = buildList(arrayListLength, ArrayList.class);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            Collections.sort(input, REVERSE);
+        }
+    }
+
+    @Test
+    public void timeSort_vector() throws Exception {
+        List<Integer> input = buildList(arrayListLength, Vector.class);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            Collections.sort(input);
+        }
+    }
+
+    @Test
+    public void timeSortWithComparator_vector() throws Exception {
+        List<Integer> input = buildList(arrayListLength, Vector.class);
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        while (state.keepRunning()) {
+            Collections.sort(input, REVERSE);
+        }
+    }
+
+    private static <T extends List<Integer>> List<Integer> buildList(
+            int arrayListLength, Class<T> listClass) throws Exception {
+        Random random = new Random();
+        random.setSeed(0);
+        List<Integer> list = listClass.newInstance();
+        for (int i = 0; i < arrayListLength; ++i) {
+            list.add(random.nextInt());
+        }
+        return list;
+    }
+}