diff --git a/libs/gui/BLASTBufferQueue.cpp b/libs/gui/BLASTBufferQueue.cpp
index 3c1971f..94998e5 100644
--- a/libs/gui/BLASTBufferQueue.cpp
+++ b/libs/gui/BLASTBufferQueue.cpp
@@ -31,6 +31,7 @@
 #include <sys/epoll.h>
 #include <sys/eventfd.h>
 
+#include <gui/FenceMonitor.h>
 #include <gui/FrameRateUtils.h>
 #include <gui/GLConsumer.h>
 #include <gui/IProducerListener.h>
@@ -475,6 +476,16 @@
     ATRACE_CALL();
     BQA_LOGV("releaseBufferCallback %s", id.to_string().c_str());
 
+    if (CC_UNLIKELY(atrace_is_tag_enabled(ATRACE_TAG_GRAPHICS))) {
+        if (!mFenceMonitor) {
+            std::string monitorName = "release :";
+            monitorName.append(mName.c_str());
+            mFenceMonitor.emplace(monitorName.c_str());
+        }
+
+        mFenceMonitor->queueFence(releaseFence);
+    }
+
     // Calculate how many buffers we need to hold before we release them back
     // to the buffer queue. This will prevent higher latency when we are running
     // on a lower refresh rate than the max supported. We only do that for EGL
diff --git a/libs/gui/FenceMonitor.cpp b/libs/gui/FenceMonitor.cpp
index 230c81a..e38f1a8 100644
--- a/libs/gui/FenceMonitor.cpp
+++ b/libs/gui/FenceMonitor.cpp
@@ -25,9 +25,18 @@
 namespace android::gui {
 
 FenceMonitor::FenceMonitor(const char* name) : mName(name), mFencesQueued(0), mFencesSignaled(0) {
-    std::thread thread(&FenceMonitor::loop, this);
-    pthread_setname_np(thread.native_handle(), mName);
-    thread.detach();
+    mThread = std::thread(&FenceMonitor::loop, this);
+}
+
+FenceMonitor::~FenceMonitor() {
+    {
+        std::lock_guard<std::mutex> lock(mMutex);
+        mStopped = true;
+        mCondition.notify_one();
+    }
+    if (mThread.joinable()) {
+        mThread.join();
+    }
 }
 
 void FenceMonitor::queueFence(const sp<Fence>& fence) {
@@ -35,24 +44,26 @@
 
     std::lock_guard<std::mutex> lock(mMutex);
     if (fence->getSignalTime() != Fence::SIGNAL_TIME_PENDING) {
-        snprintf(message, sizeof(message), "%s fence %u has signaled", mName, mFencesQueued);
+        snprintf(message, sizeof(message), "%s fence %u has signaled", mName.c_str(),
+                 mFencesQueued);
         ATRACE_NAME(message);
         // Need an increment on both to make the trace number correct.
         mFencesQueued++;
         mFencesSignaled++;
         return;
     }
-    snprintf(message, sizeof(message), "Trace %s fence %u", mName, mFencesQueued);
+    snprintf(message, sizeof(message), "Trace %s fence %u", mName.c_str(), mFencesQueued);
     ATRACE_NAME(message);
 
     mQueue.push_back(fence);
     mCondition.notify_one();
     mFencesQueued++;
-    ATRACE_INT(mName, int32_t(mQueue.size()));
+    ATRACE_INT(mName.c_str(), int32_t(mQueue.size()));
 }
 
 void FenceMonitor::loop() {
-    while (true) {
+    pthread_setname_np(pthread_self(), mName.c_str());
+    while (!mStopped) {
         threadLoop();
     }
 }
@@ -62,15 +73,18 @@
     uint32_t fenceNum;
     {
         std::unique_lock<std::mutex> lock(mMutex);
-        while (mQueue.empty()) {
+        while (mQueue.empty() && !mStopped) {
             mCondition.wait(lock);
         }
+        if (mStopped) {
+            return;
+        }
         fence = mQueue[0];
         fenceNum = mFencesSignaled;
     }
     {
         char message[64];
-        snprintf(message, sizeof(message), "waiting for %s %u", mName, fenceNum);
+        snprintf(message, sizeof(message), "waiting for %s %u", mName.c_str(), fenceNum);
         ATRACE_NAME(message);
 
         status_t result = fence->waitForever(message);
@@ -82,8 +96,8 @@
         std::lock_guard<std::mutex> lock(mMutex);
         mQueue.pop_front();
         mFencesSignaled++;
-        ATRACE_INT(mName, int32_t(mQueue.size()));
+        ATRACE_INT(mName.c_str(), int32_t(mQueue.size()));
     }
 }
 
-} // namespace android::gui
\ No newline at end of file
+} // namespace android::gui
diff --git a/libs/gui/include/gui/BLASTBufferQueue.h b/libs/gui/include/gui/BLASTBufferQueue.h
index d787d6c..868dbd0 100644
--- a/libs/gui/include/gui/BLASTBufferQueue.h
+++ b/libs/gui/include/gui/BLASTBufferQueue.h
@@ -20,6 +20,7 @@
 #include <com_android_graphics_libgui_flags.h>
 #include <gui/BufferItem.h>
 #include <gui/BufferItemConsumer.h>
+#include <gui/FenceMonitor.h>
 #include <gui/IGraphicBufferConsumer.h>
 #include <gui/IGraphicBufferProducer.h>
 #include <gui/SurfaceComposerClient.h>
@@ -316,6 +317,8 @@
 
     std::unordered_set<uint64_t> mSyncedFrameNumbers GUARDED_BY(mMutex);
 
+    std::optional<gui::FenceMonitor> mFenceMonitor GUARDED_BY(mMutex);
+
 #if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
     class BufferReleaseReader {
     public:
diff --git a/libs/gui/include/gui/FenceMonitor.h b/libs/gui/include/gui/FenceMonitor.h
index 62cedde..ac5cc0a 100644
--- a/libs/gui/include/gui/FenceMonitor.h
+++ b/libs/gui/include/gui/FenceMonitor.h
@@ -19,6 +19,7 @@
 #include <cstdint>
 #include <deque>
 #include <mutex>
+#include <thread>
 
 #include <ui/Fence.h>
 
@@ -28,17 +29,20 @@
 public:
     explicit FenceMonitor(const char* name);
     void queueFence(const sp<Fence>& fence);
+    ~FenceMonitor();
 
 private:
     void loop();
     void threadLoop();
 
-    const char* mName;
+    std::string mName;
     uint32_t mFencesQueued;
     uint32_t mFencesSignaled;
     std::deque<sp<Fence>> mQueue;
     std::condition_variable mCondition;
     std::mutex mMutex;
+    std::thread mThread;
+    std::atomic_bool mStopped = false;
 };
 
-} // namespace android::gui
\ No newline at end of file
+} // namespace android::gui
diff --git a/libs/renderengine/benchmark/AndroidTest.xml b/libs/renderengine/benchmark/AndroidTest.xml
new file mode 100644
index 0000000..3b923cb
--- /dev/null
+++ b/libs/renderengine/benchmark/AndroidTest.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2024 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.
+-->
+<configuration description="Config for librenderengine_bench.">
+    <option name="test-suite-tag" value="apct" />
+    <option name="test-suite-tag" value="apct-native-metric" />
+
+    <target_preparer class="com.android.tradefed.targetprep.PushFilePreparer">
+        <option name="cleanup" value="true" />
+        <option name="push" value="librenderengine_bench->/data/local/tmp/librenderengine_bench" />
+    </target_preparer>
+    <test class="com.android.tradefed.testtype.GoogleBenchmarkTest" >
+        <option name="native-benchmark-device-path" value="/data/local/tmp" />
+        <option name="benchmark-module-name" value="librenderengine_bench" />
+        <option name="file-exclusion-filter-regex" value=".*\.config$" />
+        <option name="file-exclusion-filter-regex" value=".*/resources/.*" />
+    </test>
+</configuration>
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index c8bb068..c17ea3b 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -769,6 +769,10 @@
         // Older fences for the same layer stack can be dropped when a new fence arrives.
         // An assumption here is that RenderEngine performs work sequentially, so an
         // incoming fence will not fire before an existing fence.
+        SFTRACE_NAME(
+                ftl::Concat("Adding additional fence for: ", ftl::truncated<20>(mName.c_str()),
+                            ", Replacing?: ", mAdditionalPreviousReleaseFences.contains(layerStack))
+                        .c_str());
         mAdditionalPreviousReleaseFences.emplace_or_replace(layerStack,
                                                             std::move(futureFenceResult));
     }
diff --git a/services/surfaceflinger/TransactionCallbackInvoker.cpp b/services/surfaceflinger/TransactionCallbackInvoker.cpp
index c6856ae..2b20648 100644
--- a/services/surfaceflinger/TransactionCallbackInvoker.cpp
+++ b/services/surfaceflinger/TransactionCallbackInvoker.cpp
@@ -30,6 +30,7 @@
 #include <binder/IInterface.h>
 #include <common/FlagManager.h>
 #include <common/trace.h>
+#include <ftl/concat.h>
 #include <utils/RefBase.h>
 
 namespace android {
@@ -129,6 +130,9 @@
 
         if (FlagManager::getInstance().ce_fence_promise()) {
             for (auto& future : handle->previousReleaseFences) {
+                SFTRACE_NAME(ftl::Concat("Merging fence for layer: ",
+                                         ftl::truncated<20>(handle->name.c_str()))
+                                     .c_str());
                 mergeFence(handle->name.c_str(), future.get().value_or(Fence::NO_FENCE), prevFence);
             }
         } else {