Merge "Add 90th and 95th percentile to ManualBenchmarkState" (98e10b82) · Commits · e / os / android_frameworks_base

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

+2 −0

Original line number	Diff line number	Diff line
		@@ -150,6 +150,8 @@ public final class ManualBenchmarkState {
		final Bundle status = new Bundle();
		status.putLong(key + "_median", mStats.getMedian());
		status.putLong(key + "_mean", (long) mStats.getMean());
		status.putLong(key + "_percentile90", mStats.getPercentile90());
		status.putLong(key + "_percentile95", mStats.getPercentile95());
		status.putLong(key + "_stddev", (long) mStats.getStandardDeviation());
		instrumentation.sendStatus(Activity.RESULT_OK, status);
		}

+23 −4

Original line number	Diff line number	Diff line
		@@ -21,7 +21,7 @@ import java.util.Collections;
		import java.util.List;

		public class Stats {
		private long mMedian, mMin, mMax;
		private long mMedian, mMin, mMax, mPercentile90, mPercentile95;
		private double mMean, mStandardDeviation;

		/* Calculate stats in constructor. */
		@@ -35,12 +35,14 @@ public class Stats {

		Collections.sort(values);

		mMedian = size % 2 == 0 ? (values.get(size / 2) + values.get(size / 2 - 1)) / 2 :
		values.get(size / 2);

		mMin = values.get(0);
		mMax = values.get(values.size() - 1);

		mMedian = size % 2 == 0 ? (values.get(size / 2) + values.get(size / 2 - 1)) / 2 :
		values.get(size / 2);
		mPercentile90 = getPercentile(values, 90);
		mPercentile95 = getPercentile(values, 95);

		for (int i = 0; i < size; ++i) {
		long result = values.get(i);
		mMean += result;
		@@ -73,4 +75,21 @@ public class Stats {
		public double getStandardDeviation() {
		return mStandardDeviation;
		}

		public long getPercentile90() {
		return mPercentile90;
		}

		public long getPercentile95() {
		return mPercentile95;
		}

		private static long getPercentile(List<Long> values, int percentile) {
		if (percentile < 0 \|\| percentile > 100) {
		throw new IllegalArgumentException(
		"invalid percentile " + percentile + ", should be 0-100");
		}
		int idx = (values.size() - 1) * percentile / 100;
		return values.get(idx);
		}
		}