SurfaceFlinger: add TracedOrdinal
There are few placed in the code where we trace the value of an ordinal
to systrace. This change adds TracedOrdinal that automatically trace
ordinals when their value change making the code cleaner.
Test: collect systrace
Bug: 131091080
Change-Id: I53351d090a0764c2f5ba8db8ac02849f78e1109b
diff --git a/services/surfaceflinger/Scheduler/DispSync.cpp b/services/surfaceflinger/Scheduler/DispSync.cpp
index 0c94052..ad5eb33 100644
--- a/services/surfaceflinger/Scheduler/DispSync.cpp
+++ b/services/surfaceflinger/Scheduler/DispSync.cpp
@@ -64,7 +64,7 @@
DispSyncThread(const char* name, bool showTraceDetailedInfo)
: mName(name),
mStop(false),
- mModelLocked(false),
+ mModelLocked("DispSync:ModelLocked", false),
mPeriod(0),
mPhase(0),
mReferenceTime(0),
@@ -121,13 +121,11 @@
void lockModel() {
Mutex::Autolock lock(mMutex);
mModelLocked = true;
- ATRACE_INT("DispSync:ModelLocked", mModelLocked);
}
void unlockModel() {
Mutex::Autolock lock(mMutex);
mModelLocked = false;
- ATRACE_INT("DispSync:ModelLocked", mModelLocked);
}
virtual bool threadLoop() {
@@ -431,7 +429,7 @@
const char* const mName;
bool mStop;
- bool mModelLocked;
+ TracedOrdinal<bool> mModelLocked;
nsecs_t mPeriod;
nsecs_t mPhase;
@@ -454,15 +452,14 @@
class ZeroPhaseTracer : public DispSync::Callback {
public:
- ZeroPhaseTracer() : mParity(false) {}
+ ZeroPhaseTracer() : mParity("ZERO_PHASE_VSYNC", false) {}
virtual void onDispSyncEvent(nsecs_t /*when*/) {
mParity = !mParity;
- ATRACE_INT("ZERO_PHASE_VSYNC", mParity ? 1 : 0);
}
private:
- bool mParity;
+ TracedOrdinal<bool> mParity;
};
DispSync::DispSync(const char* name) : mName(name), mRefreshSkipCount(0) {
diff --git a/services/surfaceflinger/Scheduler/DispSyncSource.cpp b/services/surfaceflinger/Scheduler/DispSyncSource.cpp
index 5faf46e..571c9ca 100644
--- a/services/surfaceflinger/Scheduler/DispSyncSource.cpp
+++ b/services/surfaceflinger/Scheduler/DispSyncSource.cpp
@@ -31,19 +31,16 @@
nsecs_t offsetThresholdForNextVsync, bool traceVsync,
const char* name)
: mName(name),
+ mValue(base::StringPrintf("VSYNC-%s", name), 0),
mTraceVsync(traceVsync),
mVsyncOnLabel(base::StringPrintf("VsyncOn-%s", name)),
- mVsyncEventLabel(base::StringPrintf("VSYNC-%s", name)),
- mVsyncOffsetLabel(base::StringPrintf("VsyncOffset-%s", name)),
- mVsyncNegativeOffsetLabel(base::StringPrintf("VsyncNegativeOffset-%s", name)),
mDispSync(dispSync),
- mPhaseOffset(phaseOffset),
+ mPhaseOffset(base::StringPrintf("VsyncOffset-%s", name), phaseOffset),
mOffsetThresholdForNextVsync(offsetThresholdForNextVsync) {}
void DispSyncSource::setVSyncEnabled(bool enable) {
std::lock_guard lock(mVsyncMutex);
if (enable) {
- tracePhaseOffset();
status_t err = mDispSync->addEventListener(mName, mPhaseOffset,
static_cast<DispSync::Callback*>(this),
mLastCallbackTime);
@@ -83,7 +80,6 @@
}
mPhaseOffset = phaseOffset;
- tracePhaseOffset();
// If we're not enabled, we don't need to mess with the listeners
if (!mEnabled) {
@@ -106,7 +102,6 @@
if (mTraceVsync) {
mValue = (mValue + 1) % 2;
- ATRACE_INT(mVsyncEventLabel.c_str(), mValue);
}
if (callback != nullptr) {
@@ -114,14 +109,4 @@
}
}
-void DispSyncSource::tracePhaseOffset() {
- if (mPhaseOffset > 0) {
- ATRACE_INT(mVsyncOffsetLabel.c_str(), mPhaseOffset);
- ATRACE_INT(mVsyncNegativeOffsetLabel.c_str(), 0);
- } else {
- ATRACE_INT(mVsyncOffsetLabel.c_str(), 0);
- ATRACE_INT(mVsyncNegativeOffsetLabel.c_str(), -mPhaseOffset);
- }
-}
-
} // namespace android
diff --git a/services/surfaceflinger/Scheduler/DispSyncSource.h b/services/surfaceflinger/Scheduler/DispSyncSource.h
index 50560a5..740c8c4 100644
--- a/services/surfaceflinger/Scheduler/DispSyncSource.h
+++ b/services/surfaceflinger/Scheduler/DispSyncSource.h
@@ -20,6 +20,7 @@
#include "DispSync.h"
#include "EventThread.h"
+#include "TracedOrdinal.h"
namespace android {
@@ -39,16 +40,11 @@
// The following method is the implementation of the DispSync::Callback.
virtual void onDispSyncEvent(nsecs_t when);
- void tracePhaseOffset() REQUIRES(mVsyncMutex);
-
const char* const mName;
- int mValue = 0;
+ TracedOrdinal<int> mValue;
const bool mTraceVsync;
const std::string mVsyncOnLabel;
- const std::string mVsyncEventLabel;
- const std::string mVsyncOffsetLabel;
- const std::string mVsyncNegativeOffsetLabel;
nsecs_t mLastCallbackTime GUARDED_BY(mVsyncMutex) = 0;
DispSync* mDispSync;
@@ -57,7 +53,7 @@
VSyncSource::Callback* mCallback GUARDED_BY(mCallbackMutex) = nullptr;
std::mutex mVsyncMutex;
- nsecs_t mPhaseOffset GUARDED_BY(mVsyncMutex);
+ TracedOrdinal<nsecs_t> mPhaseOffset GUARDED_BY(mVsyncMutex);
const nsecs_t mOffsetThresholdForNextVsync;
bool mEnabled GUARDED_BY(mVsyncMutex) = false;
};
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 99440a6..210a28a 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -976,7 +976,6 @@
mPhaseOffsets->getOffsetThresholdForNextVsync());
}
mDesiredActiveConfigChanged = true;
- ATRACE_INT("DesiredActiveConfigChanged", mDesiredActiveConfigChanged);
if (mRefreshRateOverlay) {
mRefreshRateOverlay->changeRefreshRate(mDesiredActiveConfig.type);
@@ -1021,7 +1020,6 @@
std::lock_guard<std::mutex> lock(mActiveConfigLock);
mDesiredActiveConfig.event = Scheduler::ConfigEvent::None;
mDesiredActiveConfigChanged = false;
- ATRACE_INT("DesiredActiveConfigChanged", mDesiredActiveConfigChanged);
mScheduler->resyncToHardwareVsync(true, getVsyncPeriod());
mPhaseOffsets->setRefreshRateType(mUpcomingActiveConfig.type);
@@ -1713,12 +1711,12 @@
// seeing this same value.
populateExpectedPresentTime();
- bool frameMissed = previousFrameMissed();
- bool hwcFrameMissed = mHadDeviceComposition && frameMissed;
- bool gpuFrameMissed = mHadClientComposition && frameMissed;
- ATRACE_INT("FrameMissed", static_cast<int>(frameMissed));
- ATRACE_INT("HwcFrameMissed", static_cast<int>(hwcFrameMissed));
- ATRACE_INT("GpuFrameMissed", static_cast<int>(gpuFrameMissed));
+ const TracedOrdinal<bool> frameMissed = {"FrameMissed", previousFrameMissed()};
+ const TracedOrdinal<bool> hwcFrameMissed = {"HwcFrameMissed",
+ mHadDeviceComposition && frameMissed};
+ const TracedOrdinal<bool> gpuFrameMissed = {"GpuFrameMissed",
+ mHadClientComposition && frameMissed};
+
if (frameMissed) {
mFrameMissedCount++;
mTimeStats->incrementMissedFrames();
@@ -3402,8 +3400,9 @@
const Region bounds(displayState.bounds);
const DisplayRenderArea renderArea(displayDevice);
- const bool hasClientComposition = getHwComposer().hasClientComposition(displayId);
- ATRACE_INT("hasClientComposition", hasClientComposition);
+ const TracedOrdinal<bool> hasClientComposition = {"hasClientComposition",
+ getHwComposer().hasClientComposition(
+ displayId)};
bool applyColorMatrix = false;
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 0e6eacf..b34ccd1 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -60,6 +60,7 @@
#include "Scheduler/VSyncModulator.h"
#include "SurfaceFlingerFactory.h"
#include "SurfaceTracing.h"
+#include "TracedOrdinal.h"
#include "TransactionCompletedThread.h"
#include <atomic>
@@ -1148,7 +1149,8 @@
ActiveConfigInfo mDesiredActiveConfig GUARDED_BY(mActiveConfigLock);
// below flags are set by main thread only
- bool mDesiredActiveConfigChanged GUARDED_BY(mActiveConfigLock) = false;
+ TracedOrdinal<bool> mDesiredActiveConfigChanged
+ GUARDED_BY(mActiveConfigLock) = {"DesiredActiveConfigChanged", false};
bool mCheckPendingFence = false;
bool mLumaSampling = true;
diff --git a/services/surfaceflinger/TracedOrdinal.h b/services/surfaceflinger/TracedOrdinal.h
new file mode 100644
index 0000000..fb0f02e
--- /dev/null
+++ b/services/surfaceflinger/TracedOrdinal.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright 2019 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.
+ */
+
+#pragma once
+#include <android-base/stringprintf.h>
+#include <utils/Trace.h>
+#include <cmath>
+#include <string>
+
+template <typename T>
+class TracedOrdinal {
+public:
+ static_assert(std::is_same<bool, T>() || (std::is_signed<T>() && std::is_integral<T>()),
+ "Type is not supported. Please test it with systrace before adding "
+ "it to the list.");
+
+ TracedOrdinal(std::string name, T initialValue)
+ : mName(name),
+ mNameNegative(android::base::StringPrintf("%sNegative", name.c_str())),
+ mHasGoneNegative(std::signbit(initialValue)),
+ mData(initialValue) {
+ trace();
+ }
+
+ operator T() const { return mData; }
+
+ TracedOrdinal& operator=(T other) {
+ mData = other;
+ mHasGoneNegative = mHasGoneNegative || std::signbit(mData);
+ trace();
+ return *this;
+ }
+
+private:
+ void trace() {
+ if (!std::signbit(mData)) {
+ ATRACE_INT64(mName.c_str(), int64_t(mData));
+ if (mHasGoneNegative) {
+ ATRACE_INT64(mNameNegative.c_str(), 0);
+ }
+ } else {
+ ATRACE_INT64(mNameNegative.c_str(), -int64_t(mData));
+ ATRACE_INT64(mName.c_str(), 0);
+ }
+ }
+
+ const std::string mName;
+ const std::string mNameNegative;
+ bool mHasGoneNegative;
+ T mData;
+};