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Issue #21 - Remove panning/tab animation performance measurements

Browse source 
Based on FranklinDM's follow-up for the issue.

This would require browser FE changes, particularly removing the associated
code in `tabbrowser.xml`, however, that was already done in Pale Moon previously.
Other front-end applications may need to take note, though.

Based on changes from the following bugs:
* Bug 696398 - Need an api to analyze panning performance
* Bug 800031 - Include paint time in tab switch telemetry
* Bug 820167 - Enable performance measurement of tab animation
* Bug 826383 - Improve Start/Stop FrameTimeRecording for telemetry usage
This commit is contained in:
Moonchild 2022-04-04 11:58:59 +08:00 • committed by roytam1
commit 2e944692c3
14 changed files with 1 additions and 344 deletions
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51
gfx/layers/Layers.h
View file

@ -586,36 +586,6 @@ public:
*/
void LogSelf(const char* aPrefix="");
/**
* Record (and return) frame-intervals and paint-times for frames which were presented
* between calling StartFrameTimeRecording and StopFrameTimeRecording.
*
* - Uses a cyclic buffer and serves concurrent consumers, so if Stop is called too late
* (elements were overwritten since Start), result is considered invalid and hence empty.
* - Buffer is capable of holding 10 seconds @ 60fps (or more if frames were less frequent).
* Can be changed (up to 1 hour) via pref: toolkit.framesRecording.bufferSize.
* - Note: the first frame-interval may be longer than expected because last frame
* might have been presented some time before calling StartFrameTimeRecording.
*/
/**
* Returns a handle which represents current recording start position.
*/
virtual uint32_t StartFrameTimeRecording(int32_t aBufferSize);
/**
* Clears, then populates aFrameIntervals with the recorded frame timing
* data. The array will be empty if data was overwritten since
* aStartIndex was obtained.
*/
virtual void StopFrameTimeRecording(uint32_t aStartIndex,
nsTArray<float>& aFrameIntervals);
void RecordFrame();
void PostPresent();
void BeginTabSwitch();
static bool IsLogEnabled();
static mozilla::LogModule* GetLog();
@ -686,27 +656,6 @@ protected:
TimeStamp mAnimationReadyTime;
// The count of pixels that were painted in the current transaction.
uint32_t mPaintedPixelCount;
private:
struct FramesTimingRecording
{
// Stores state and data for frame intervals and paint times recording.
// see LayerManager::StartFrameTimeRecording() at Layers.cpp for more details.
FramesTimingRecording()
: mNextIndex(0)
, mLatestStartIndex(0)
, mCurrentRunStartIndex(0)
, mIsPaused(true)
{}
nsTArray<float> mIntervals;
TimeStamp mLastFrameTime;
uint32_t mNextIndex;
uint32_t mLatestStartIndex;
uint32_t mCurrentRunStartIndex;
bool mIsPaused;
};
FramesTimingRecording mRecording;
TimeStamp mTabSwitchStart;
public:
/*