| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License |
| */ |
| |
| package android.os; |
| |
| import android.perftests.utils.BenchmarkState; |
| import android.perftests.utils.PerfStatusReporter; |
| import android.support.test.filters.LargeTest; |
| import android.support.test.runner.AndroidJUnit4; |
| |
| import com.android.internal.os.BinderCallsStats; |
| import com.android.internal.os.BinderInternal.CallSession; |
| import com.android.internal.os.CachedDeviceState; |
| |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| |
| /** |
| * Performance tests for {@link BinderCallsStats} |
| */ |
| @RunWith(AndroidJUnit4.class) |
| @LargeTest |
| public class BinderCallsStatsPerfTest { |
| private static final int DEFAULT_BUCKET_SIZE = 1000; |
| static class FakeCpuTimeBinderCallsStats extends BinderCallsStats { |
| private int mTimeMs; |
| |
| FakeCpuTimeBinderCallsStats() { |
| super(new BinderCallsStats.Injector()); |
| setDeviceState(new CachedDeviceState(false, false).getReadonlyClient()); |
| } |
| |
| protected long getThreadTimeMicro() { |
| return mTimeMs++; |
| } |
| |
| protected long getElapsedRealtimeMicro() { |
| return mTimeMs++; |
| } |
| } |
| |
| @Rule |
| public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter(); |
| private BinderCallsStats mBinderCallsStats; |
| |
| @Before |
| public void setUp() { |
| mBinderCallsStats = new BinderCallsStats(new BinderCallsStats.Injector()); |
| CachedDeviceState deviceState = new CachedDeviceState(false, false); |
| mBinderCallsStats.setDeviceState(deviceState.getReadonlyClient()); |
| } |
| |
| @After |
| public void tearDown() { |
| } |
| |
| @Test |
| public void timeCallSession() { |
| mBinderCallsStats.setDetailedTracking(true); |
| runScenario(DEFAULT_BUCKET_SIZE); |
| } |
| |
| @Test |
| public void timeCallSessionOnePercentSampling() { |
| mBinderCallsStats.setDetailedTracking(false); |
| mBinderCallsStats.setSamplingInterval(100); |
| runScenario(DEFAULT_BUCKET_SIZE); |
| } |
| |
| @Test |
| public void timeCallSessionTrackingDisabled() { |
| mBinderCallsStats.setDetailedTracking(false); |
| runScenario(DEFAULT_BUCKET_SIZE); |
| } |
| |
| @Test |
| public void timeCallSession_1000_buckets_cpuNotRecorded() { |
| mBinderCallsStats = new FakeCpuTimeBinderCallsStats(); |
| mBinderCallsStats.setSamplingInterval(1); |
| runScenario(/* max bucket size */ 1000); |
| } |
| |
| @Test |
| public void timeCallSession_500_buckets_cpuNotRecorded() { |
| mBinderCallsStats = new FakeCpuTimeBinderCallsStats(); |
| mBinderCallsStats.setSamplingInterval(1); |
| runScenario(/* max bucket size */ 500); |
| } |
| |
| @Test |
| public void timeCallSession_100_buckets_cpuNotRecorded() { |
| mBinderCallsStats = new FakeCpuTimeBinderCallsStats(); |
| mBinderCallsStats.setSamplingInterval(1); |
| runScenario(/* max bucket size */ 100); |
| } |
| |
| // There will be a warmup time of maxBucketSize to initialize the map of CallStat. |
| private void runScenario(int maxBucketSize) { |
| final BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| Binder b = new Binder(); |
| while (state.keepRunning()) { |
| for (int i = 0; i < 10000; i++) { |
| CallSession s = mBinderCallsStats.callStarted(b, i % maxBucketSize); |
| mBinderCallsStats.callEnded(s, 0, 0); |
| } |
| } |
| } |
| } |