Misha Wagner | 566903a | 2018-10-02 10:50:12 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2018 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package android.os; |
| 18 | |
| 19 | import static org.junit.Assert.assertNotNull; |
| 20 | |
| 21 | import android.perftests.utils.BenchmarkState; |
| 22 | import android.perftests.utils.PerfStatusReporter; |
KOUSHIK PANUGANTI | 412796e | 2018-12-17 14:16:52 -0800 | [diff] [blame] | 23 | |
| 24 | import androidx.test.filters.LargeTest; |
| 25 | import androidx.test.runner.AndroidJUnit4; |
Misha Wagner | 566903a | 2018-10-02 10:50:12 +0100 | [diff] [blame] | 26 | |
| 27 | import com.android.internal.os.KernelCpuThreadReader; |
| 28 | |
| 29 | import org.junit.Rule; |
| 30 | import org.junit.Test; |
| 31 | import org.junit.runner.RunWith; |
| 32 | |
Misha Wagner | 566903a | 2018-10-02 10:50:12 +0100 | [diff] [blame] | 33 | /** |
| 34 | * Performance tests collecting per-thread CPU data. |
| 35 | */ |
| 36 | @RunWith(AndroidJUnit4.class) |
| 37 | @LargeTest |
| 38 | public class KernelCpuThreadReaderPerfTest { |
| 39 | @Rule |
| 40 | public final PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter(); |
| 41 | |
Misha Wagner | 4b32c9f | 2019-01-25 15:30:14 +0000 | [diff] [blame^] | 42 | private final KernelCpuThreadReader mKernelCpuThreadReader = |
| 43 | KernelCpuThreadReader.create(8, uid -> 1000 <= uid && uid < 2000); |
Misha Wagner | 566903a | 2018-10-02 10:50:12 +0100 | [diff] [blame] | 44 | |
| 45 | @Test |
| 46 | public void timeReadCurrentProcessCpuUsage() { |
| 47 | final BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| 48 | assertNotNull(mKernelCpuThreadReader); |
| 49 | while (state.keepRunning()) { |
| 50 | this.mKernelCpuThreadReader.getCurrentProcessCpuUsage(); |
| 51 | } |
| 52 | } |
| 53 | } |