Snap for 8421339 from b76eebf01088b68117176b389ce1ab9f887b9f8f to tm-qpr1-release (b9e54459) · Commits · e / os / android_frameworks_base

apct-tests/perftests/core/src/android/libcore/AdditionPerfTest.java

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		/*
		* 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.libcore;

		import android.perftests.utils.BenchmarkState;
		import android.perftests.utils.PerfStatusReporter;
		import android.test.suitebuilder.annotation.LargeTest;

		import androidx.test.runner.AndroidJUnit4;

		import org.junit.Rule;
		import org.junit.Test;
		import org.junit.runner.RunWith;

		/**
		* What do various kinds of addition cost?
		*/
		@RunWith(AndroidJUnit4.class)
		@LargeTest
		public class AdditionPerfTest {

		@Rule
		public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();

		@Test
		public int timeAddConstantToLocalInt() {
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		int result = 0;
		while (state.keepRunning()) {
		result += 123;
		}
		return result;
		}
		@Test
		public int timeAddTwoLocalInts() {
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		int result = 0;
		int constant = 123;
		while (state.keepRunning()) {
		result += constant;
		}
		return result;
		}
		@Test
		public long timeAddConstantToLocalLong() {
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		long result = 0;
		while (state.keepRunning()) {
		result += 123L;
		}
		return result;
		}
		@Test
		public long timeAddTwoLocalLongs() {
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		long result = 0;
		long constant = 123L;
		while (state.keepRunning()) {
		result += constant;
		}
		return result;
		}
		@Test
		public float timeAddConstantToLocalFloat() {
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		float result = 0.0f;
		while (state.keepRunning()) {
		result += 123.0f;
		}
		return result;
		}
		@Test
		public float timeAddTwoLocalFloats() {
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		float result = 0.0f;
		float constant = 123.0f;
		while (state.keepRunning()) {
		result += constant;
		}
		return result;
		}
		@Test
		public double timeAddConstantToLocalDouble() {
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		double result = 0.0;
		while (state.keepRunning()) {
		result += 123.0;
		}
		return result;
		}
		@Test
		public double timeAddTwoLocalDoubles() {
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		double result = 0.0;
		double constant = 123.0;
		while (state.keepRunning()) {
		result += constant;
		}
		return result;
		}
		}

apct-tests/perftests/core/src/android/libcore/ArrayCopyPerfTest.java

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		/*
		* 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.libcore;

		import android.perftests.utils.BenchmarkState;
		import android.perftests.utils.PerfStatusReporter;
		import android.test.suitebuilder.annotation.LargeTest;

		import androidx.test.runner.AndroidJUnit4;

		import org.junit.Rule;
		import org.junit.Test;
		import org.junit.runner.RunWith;

		import java.util.Arrays;

		@RunWith(AndroidJUnit4.class)
		@LargeTest
		public class ArrayCopyPerfTest {

		@Rule
		public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();

		@Test
		public void timeManualArrayCopy() {
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		char[] src = new char[8192];
		while (state.keepRunning()) {
		char[] dst = new char[8192];
		for (int i = 0; i < 8192; ++i) {
		dst[i] = src[i];
		}
		}
		}

		@Test
		public void time_System_arrayCopy() {
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		char[] src = new char[8192];
		while (state.keepRunning()) {
		char[] dst = new char[8192];
		System.arraycopy(src, 0, dst, 0, 8192);
		}
		}

		@Test
		public void time_Arrays_copyOf() {
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		char[] src = new char[8192];
		while (state.keepRunning()) {
		char[] dst = Arrays.copyOf(src, 8192);
		}
		}

		@Test
		public void time_Arrays_copyOfRange() {
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		char[] src = new char[8192];
		while (state.keepRunning()) {
		char[] dst = Arrays.copyOfRange(src, 0, 8192);
		}
		}
		}

apct-tests/perftests/core/src/android/libcore/ArrayIterationPerfTest.java

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		/*
		* 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.libcore;

		import android.perftests.utils.BenchmarkState;
		import android.perftests.utils.PerfStatusReporter;
		import android.test.suitebuilder.annotation.LargeTest;

		import androidx.test.runner.AndroidJUnit4;

		import org.junit.Rule;
		import org.junit.Test;
		import org.junit.runner.RunWith;

		/**
		* How do various ways of iterating through an array compare?
		*/
		@RunWith(AndroidJUnit4.class)
		@LargeTest
		public class ArrayIterationPerfTest {

		public class Foo {
		int mSplat;
		}

		@Rule
		public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();

		Foo[] mArray = new Foo[27];
		{
		for (int i = 0; i < mArray.length; ++i) mArray[i] = new Foo();
		}
		@Test
		public void timeArrayIteration() {
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		int sum = 0;
		for (int i = 0; i < mArray.length; i++) {
		sum += mArray[i].mSplat;
		}
		}
		}
		@Test
		public void timeArrayIterationCached() {
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		int sum = 0;
		Foo[] localArray = mArray;
		int len = localArray.length;

		for (int i = 0; i < len; i++) {
		sum += localArray[i].mSplat;
		}
		}
		}
		@Test
		public void timeArrayIterationForEach() {
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		int sum = 0;
		for (Foo a: mArray) {
		sum += a.mSplat;
		}
		}
		}
		}

apct-tests/perftests/core/src/android/libcore/ArrayListIterationPerfTest.java

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		/*
		* 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.libcore;

		import android.perftests.utils.BenchmarkState;
		import android.perftests.utils.PerfStatusReporter;
		import android.test.suitebuilder.annotation.LargeTest;

		import androidx.test.runner.AndroidJUnit4;

		import org.junit.Rule;
		import org.junit.Test;
		import org.junit.runner.RunWith;

		import java.util.ArrayList;

		/**
		* Is a hand-coded counted loop through an ArrayList cheaper than enhanced for?
		*/
		@RunWith(AndroidJUnit4.class)
		@LargeTest
		public class ArrayListIterationPerfTest {

		public class Foo {
		int mSplat;
		}
		@Rule
		public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();

		ArrayList<Foo> mList = new ArrayList<Foo>();
		{
		for (int i = 0; i < 27; ++i) mList.add(new Foo());
		}
		@Test
		public void timeArrayListIterationIndexed() {
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		int sum = 0;
		ArrayList<Foo> list = mList;
		int len = list.size();
		for (int i = 0; i < len; ++i) {
		sum += list.get(i).mSplat;
		}
		}
		}
		@Test
		public void timeArrayListIterationForEach() {
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		int sum = 0;
		for (Foo a : mList) {
		sum += a.mSplat;
		}
		}
		}
		}

apct-tests/perftests/core/src/android/libcore/OWNERS

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		# Bug component: 24949
		include platform/libcore:/OWNERS