[TimeStats] Track per-frame CPU time.
This measures from the beginning of the invalidate message, until
CompositionEngine::present finishes.
Bug: 144037240
Test: dumpsys SurfaceFlinger --timestats -dump
Change-Id: I1c686db9fa1746518c48810bf385041806ce06d2
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 50b3ae4..5958109 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -1148,6 +1148,9 @@
bool mPendingSyncInputWindows GUARDED_BY(mStateLock);
Hwc2::impl::PowerAdvisor mPowerAdvisor;
+ // This should only be accessed on the main thread.
+ nsecs_t mFrameStartTime = 0;
+
std::unique_ptr<RefreshRateOverlay> mRefreshRateOverlay;
// Flag used to set override allowed display configs from backdoor