| /* |
| * 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.CachedDeviceState; |
| import com.android.internal.os.LooperStats; |
| |
| 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 LooperStats}. |
| */ |
| @RunWith(AndroidJUnit4.class) |
| @LargeTest |
| public class LooperStatsPerfTest { |
| private static final int DISTINCT_MESSAGE_COUNT = 1000; |
| |
| @Rule |
| public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter(); |
| private LooperStats mStats; |
| private CachedDeviceState mDeviceState; |
| private HandlerThread mThread; |
| private Message[] mMessages = new Message[DISTINCT_MESSAGE_COUNT]; |
| |
| @Before |
| public void setUp() { |
| mStats = new LooperStats(1, DISTINCT_MESSAGE_COUNT - 1); |
| mDeviceState = new CachedDeviceState(false, false); |
| mStats.setDeviceState(mDeviceState.getReadonlyClient()); |
| // The tests are all single-threaded. HandlerThread is created to allow creating Handlers. |
| mThread = new HandlerThread("UnusedThread"); |
| mThread.start(); |
| for (int i = 0; i < DISTINCT_MESSAGE_COUNT; i++) { |
| mMessages[i] = mThread.getThreadHandler().obtainMessage(i); |
| } |
| } |
| |
| @After |
| public void tearDown() { |
| mThread.quit(); |
| } |
| |
| @Test |
| public void timeHundredPercentSampling() { |
| mStats.setSamplingInterval(1); |
| runScenario(); |
| } |
| |
| @Test |
| public void timeOnePercentSampling() { |
| mStats.setSamplingInterval(100); |
| runScenario(); |
| } |
| |
| @Test |
| public void timeCollectionDisabled() { |
| // We do not collect data on charger. |
| mDeviceState.setCharging(true); |
| runScenario(); |
| } |
| |
| private void runScenario() { |
| final BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| for (int i = 0; i < DISTINCT_MESSAGE_COUNT; i++) { |
| Object token = mStats.messageDispatchStarting(); |
| mStats.messageDispatched(token, mMessages[i]); |
| } |
| } |
| } |
| } |