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monitor中帧率统计<dumpsys SurfaceFlinger --latency >数据内容已不匹配
new:
SurfaceFlinger: refactor frame time tracking
This change moves the frame time history tracking code out of Layer and into a
new class called FrameTracker. It also changes the tracking to use signal
timestamps from fences when available for more accurate results.
old:
The first line currently contains the refresh period in nanosecond.
Each 128 following line contains 3 timestamps, of respectively
the app draw time, the vsync timestamp just prior the call to set and
the timestamp of the call to set.
patch:
+void FrameTracker::dump(String8& result) const {
- processFences();
- const size_t o = mOffset;
- for (size_t i = 1; i < NUM_FRAME_RECORDS; i++) {
-
const size_t index = (o+i) % NUM_FRAME_RECORDS;
-
result.appendFormat("%lld\t%lld\t%lld\n",
-
mFrameRecords[index].desiredPresentTime,
-
mFrameRecords[index].actualPresentTime,
-
mFrameRecords[index].frameReadyTime);
- }
void Layer::dumpStats(String8& result, char* buffer, size_t SIZE) const
{
LayerBaseClient::dumpStats(result, buffer, SIZE);
- const size_t o = mFrameLatencyOffset;
const nsecs_t period =
mFlinger->getHwComposer().getRefreshPeriod(HWC_DISPLAY_PRIMARY);
result.appendFormat("%lld\n", period); - for (size_t i=0 ; i<128 ; i++) {
-
const size_t index = (o+i) % 128;
-
const nsecs_t time_app = mFrameStats[index].timestamp;
-
const nsecs_t time_set = mFrameStats[index].set;
-
const nsecs_t time_vsync = mFrameStats[index].vsync;
-
result.appendFormat("%lld\t%lld\t%lld\n",
-
time_app,
-
time_vsync,
-
time_set);
- }
启动报错
手机型号 荣耀9
Android 9
EMUI 9.1.0
启动指令 :
sh monitor.sh fps/ "SurfaceView - com.tencent.tmgp.supercell.brawlstars/com.supercell.titan.tencent.GameAppTencent#0"
报错信息:
monitor.sh[334]: [: 1: unexpected operator/operand
monitor.sh[334]: [: 0: unexpected operator/operand
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