| /* |
| * Copyright (C) 2016 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.perftests; |
| |
| import android.perftests.utils.BenchmarkState; |
| import android.perftests.utils.PerfStatusReporter; |
| |
| import androidx.test.filters.LargeTest; |
| import androidx.test.runner.AndroidJUnit4; |
| |
| import dalvik.annotation.optimization.CriticalNative; |
| import dalvik.annotation.optimization.FastNative; |
| |
| import org.junit.Assert; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import java.util.concurrent.TimeUnit; |
| |
| @RunWith(AndroidJUnit4.class) |
| @LargeTest |
| public class SystemPerfTest { |
| |
| static { |
| System.loadLibrary("perftestscore_jni"); |
| } |
| |
| @Rule |
| public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter(); |
| |
| @Test |
| public void testNanoTimePerf() { |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| System.nanoTime(); |
| } |
| } |
| |
| @Test |
| public void testBenchmarkOverhead() { |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) {} |
| } |
| |
| void spinBlock(long durationNs) { |
| long start = System.nanoTime(); |
| while (System.nanoTime() - start < durationNs) {} |
| } |
| |
| @Test |
| public void testBenchmarkPauseResumeOverhead() { |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| state.pauseTiming(); |
| spinBlock(TimeUnit.MICROSECONDS.toNanos(5)); |
| state.resumeTiming(); |
| } |
| } |
| |
| @Test |
| public void testJniArrayNoop() { |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| final int[] data = new int[450]; |
| while (state.keepRunning()) { |
| jintarrayArgumentNoop(data, data.length); |
| } |
| } |
| |
| @Test |
| public void testJniArrayGetLength() { |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| final int[] data = new int[450]; |
| while (state.keepRunning()) { |
| jintarrayGetLength(data); |
| } |
| } |
| |
| @Test |
| public void testJniArrayCriticalAccess() { |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| final int[] data = new int[450]; |
| while (state.keepRunning()) { |
| jintarrayCriticalAccess(data, 50); |
| } |
| } |
| |
| @Test |
| public void testJniArrayBasicAccess() { |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| final int[] data = new int[450]; |
| while (state.keepRunning()) { |
| jintarrayBasicAccess(data, 50); |
| } |
| } |
| |
| /** this result should be compared with {@link #testJniCriticalNativeAccess()}. */ |
| @Test |
| public void testJniFastNativeAccess() { |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| jintFastNativeAccess(50); |
| } |
| } |
| |
| /** |
| * This result should be compared with {@link #testJniFastNativeAccess()}. |
| * |
| * <p>In theory, the result should be better than {@link #testJniFastNativeAccess()}. |
| */ |
| @Test |
| public void testJniCriticalNativeAccess() { |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| jintCriticalNativeAccess(50); |
| } |
| } |
| |
| /** The result should be compared with {@link #testJniCriticalNativeCheckNullPointer()}. */ |
| @Test |
| public void testJniFastNativeCheckNullPointer() { |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| final int echoNumber = jintFastNativeCheckNullPointer(50); |
| } |
| } |
| |
| /** |
| * The result should be compared with {@link #testJniFastNativeCheckNullPointer()}. |
| * |
| * <p>CriticalNative can't reference JavaEnv in native layer. It means it should check the null |
| * pointer in java layer. It's a comparison between native layer and java layer. |
| */ |
| @Test |
| public void testJniCriticalNativeCheckNullPointer() { |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| final int echoNumber = jintCriticalNativeCheckNullPointer(50); |
| if (echoNumber == -1) { |
| Assert.fail("It shouldn't be here"); |
| } |
| } |
| } |
| |
| /** |
| * The result should be compared with {@link #testJniCriticalNativeThrowNullPointerException()}. |
| */ |
| @Test |
| public void testJniFastNativeThrowNullPointerException() { |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| try { |
| jintFastNativeCheckNullPointer(0); |
| } catch (NullPointerException e) { |
| continue; |
| } |
| Assert.fail("It shouldn't be here"); |
| } |
| } |
| |
| /** |
| * The result should be compared with {@link #testJniFastNativeThrowNullPointerException()}. |
| * |
| * <p>CriticalNative can't reference JavaEnv in native layer. It means it should check the null |
| * pointer in java layer. It's a comparison between native layer and java layer. |
| */ |
| @Test |
| public void testJniCriticalNativeThrowNullPointerException() { |
| BenchmarkState state = mPerfStatusReporter.getBenchmarkState(); |
| while (state.keepRunning()) { |
| try { |
| final int echoNumber = jintCriticalNativeCheckNullPointer(0); |
| if (echoNumber == -1) { |
| throw new NullPointerException(); |
| } |
| } catch (NullPointerException e) { |
| continue; |
| } |
| Assert.fail("It shouldn't be here"); |
| } |
| } |
| |
| // ----------- @FastNative ------------------ |
| @FastNative |
| private static native void jintarrayArgumentNoop(int[] array, int length); |
| @FastNative |
| private static native int jintarrayGetLength(int[] array); |
| @FastNative |
| private static native int jintarrayCriticalAccess(int[] array, int index); |
| @FastNative |
| private static native int jintarrayBasicAccess(int[] array, int index); |
| |
| @FastNative |
| private static native int jintFastNativeAccess(int echoNumber); |
| |
| @FastNative |
| private static native int jintFastNativeCheckNullPointer(int echoNumber); |
| |
| // ----------- @CriticalNative ------------------ |
| @CriticalNative |
| private static native int jintCriticalNativeAccess(int echoNumber); |
| |
| @CriticalNative |
| private static native int jintCriticalNativeCheckNullPointer(int echoNumber); |
| } |