Emit trace sections for warmup and benchmark phases (6d064860) · Commits · e / os / android_frameworks_base

apct-tests/perftests/utils/src/android/perftests/utils/BenchmarkState.java

+14 −0

Original line number	Diff line number	Diff line
		@@ -20,6 +20,7 @@ import android.app.Activity;
		import android.app.Instrumentation;
		import android.os.Bundle;
		import android.os.Debug;
		import android.os.Trace;
		import android.util.Log;

		import androidx.test.InstrumentationRegistry;
		@@ -129,17 +130,23 @@ public final class BenchmarkState {
		}

		private void beginWarmup() {
		Trace.beginSection("Warmup");
		mStartTimeNs = System.nanoTime();
		mIteration = 0;
		mState = WARMUP;
		}

		private void endWarmup() {
		Trace.endSection();
		}

		private void beginBenchmark(long warmupDuration, int iterations) {
		if (ENABLE_PROFILING) {
		File f = new File(InstrumentationRegistry.getContext().getDataDir(), "benchprof");
		Log.d(TAG, "Tracing to: " + f.getAbsolutePath());
		Debug.startMethodTracingSampling(f.getAbsolutePath(), 16 * 1024 * 1024, 100);
		}
		Trace.beginSection("Benchmark");
		mMaxIterations = (int) (TARGET_TEST_DURATION_NS / (warmupDuration / iterations));
		mMaxIterations = Math.min(MAX_TEST_ITERATIONS,
		Math.max(mMaxIterations, MIN_TEST_ITERATIONS));
		@@ -150,6 +157,10 @@ public final class BenchmarkState {
		mStartTimeNs = System.nanoTime();
		}

		private void endBenchmark() {
		Trace.endSection();
		}

		private boolean startNextTestRun() {
		final long currentTime = System.nanoTime();
		mResults.add((currentTime - mStartTimeNs - mPausedDurationNs) / mMaxIterations);
		@@ -165,6 +176,7 @@ public final class BenchmarkState {
		return true;
		}
		mState = FINISHED;
		endBenchmark();
		return false;
		}
		mPausedDurationNs = 0;
		@@ -189,6 +201,7 @@ public final class BenchmarkState {
		// don't yet have a target iteration count.
		final long duration = System.nanoTime() - mStartTimeNs;
		if (mIteration >= WARMUP_MIN_ITERATIONS && duration >= WARMUP_DURATION_NS) {
		endWarmup();
		beginBenchmark(duration, mIteration);
		}
		return true;
		@@ -208,6 +221,7 @@ public final class BenchmarkState {
		mCustomizedIterations++;
		if (mCustomizedIterations >= mMaxCustomizedIterations) {
		mState = FINISHED;
		endBenchmark();
		return false;
		}
		mCustomizedIterationListener.onStart(mCustomizedIterations);