blob: 9034034539e946ae495faf8653692ef204e021ba [file] [log] [blame]
/*
* 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 static org.junit.Assert.assertNotNull;
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.KernelCpuThreadReader;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;
/**
* Performance tests collecting per-thread CPU data.
*/
@RunWith(AndroidJUnit4.class)
@LargeTest
public class KernelCpuThreadReaderPerfTest {
@Rule
public final PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
private final KernelCpuThreadReader mKernelCpuThreadReader = KernelCpuThreadReader.create();
@Test
public void timeReadCurrentProcessCpuUsage() {
final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
assertNotNull(mKernelCpuThreadReader);
while (state.keepRunning()) {
this.mKernelCpuThreadReader.getCurrentProcessCpuUsage();
}
}
}