Merge "Caliper benchmarks for Parcel." (8f409bcd) · Commits · e / os / android_frameworks_base

core/tests/benchmarks/README

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		These benchmarks use the Caliper benchmark framework, and can be
		run on a remote device using Vogar:

		http://code.google.com/p/caliper/
		http://code.google.com/p/vogar/

		$ vogar --benchmark path/to/Benchmark.java

core/tests/benchmarks/src/android/os/ParcelArrayBenchmark.java

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		/*
		* Copyright (C) 2012 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 com.google.caliper.Param;
		import com.google.caliper.SimpleBenchmark;

		public class ParcelArrayBenchmark extends SimpleBenchmark {

		@Param({ "1", "10", "100", "1000" })
		private int mSize;

		private Parcel mWriteParcel;

		private byte[] mByteArray;
		private int[] mIntArray;
		private long[] mLongArray;

		private Parcel mByteParcel;
		private Parcel mIntParcel;
		private Parcel mLongParcel;

		@Override
		protected void setUp() {
		mWriteParcel = Parcel.obtain();

		mByteArray = new byte[mSize];
		mIntArray = new int[mSize];
		mLongArray = new long[mSize];

		mByteParcel = Parcel.obtain();
		mByteParcel.writeByteArray(mByteArray);
		mIntParcel = Parcel.obtain();
		mIntParcel.writeIntArray(mIntArray);
		mLongParcel = Parcel.obtain();
		mLongParcel.writeLongArray(mLongArray);
		}

		@Override
		protected void tearDown() {
		mWriteParcel.recycle();
		mWriteParcel = null;
		}

		public void timeWriteByteArray(int reps) {
		for (int i = 0; i < reps; i++) {
		mWriteParcel.setDataPosition(0);
		mWriteParcel.writeByteArray(mByteArray);
		}
		}

		public void timeCreateByteArray(int reps) {
		for (int i = 0; i < reps; i++) {
		mByteParcel.setDataPosition(0);
		mByteParcel.createByteArray();
		}
		}

		public void timeReadByteArray(int reps) {
		for (int i = 0; i < reps; i++) {
		mByteParcel.setDataPosition(0);
		mByteParcel.readByteArray(mByteArray);
		}
		}

		public void timeWriteIntArray(int reps) {
		for (int i = 0; i < reps; i++) {
		mWriteParcel.setDataPosition(0);
		mWriteParcel.writeIntArray(mIntArray);
		}
		}

		public void timeCreateIntArray(int reps) {
		for (int i = 0; i < reps; i++) {
		mIntParcel.setDataPosition(0);
		mIntParcel.createIntArray();
		}
		}

		public void timeReadIntArray(int reps) {
		for (int i = 0; i < reps; i++) {
		mIntParcel.setDataPosition(0);
		mIntParcel.readIntArray(mIntArray);
		}
		}

		public void timeWriteLongArray(int reps) {
		for (int i = 0; i < reps; i++) {
		mWriteParcel.setDataPosition(0);
		mWriteParcel.writeLongArray(mLongArray);
		}
		}

		public void timeCreateLongArray(int reps) {
		for (int i = 0; i < reps; i++) {
		mLongParcel.setDataPosition(0);
		mLongParcel.createLongArray();
		}
		}

		public void timeReadLongArray(int reps) {
		for (int i = 0; i < reps; i++) {
		mLongParcel.setDataPosition(0);
		mLongParcel.readLongArray(mLongArray);
		}
		}

		}

core/tests/benchmarks/src/android/os/ParcelBenchmark.java

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		/*
		* Copyright (C) 2012 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 com.google.caliper.SimpleBenchmark;

		public class ParcelBenchmark extends SimpleBenchmark {

		private Parcel mParcel;

		@Override
		protected void setUp() {
		mParcel = Parcel.obtain();
		}

		@Override
		protected void tearDown() {
		mParcel.recycle();
		mParcel = null;
		}

		public void timeWriteByte(int reps) {
		final byte val = 0xF;
		for (int i = 0; i < reps; i++) {
		mParcel.writeByte(val);
		}
		}

		public void timeReadByte(int reps) {
		mParcel.setDataCapacity(reps);
		for (int i = 0; i < reps; i++) {
		mParcel.readByte();
		}
		}

		public void timeWriteInt(int reps) {
		final int val = 0xF;
		for (int i = 0; i < reps; i++) {
		mParcel.writeInt(val);
		}
		}

		public void timeReadInt(int reps) {
		mParcel.setDataCapacity(reps << 2);
		for (int i = 0; i < reps; i++) {
		mParcel.readInt();
		}
		}

		public void timeWriteLong(int reps) {
		final long val = 0xF;
		for (int i = 0; i < reps; i++) {
		mParcel.writeLong(val);
		}
		}

		public void timeReadLong(int reps) {
		mParcel.setDataCapacity(reps << 3);
		for (int i = 0; i < reps; i++) {
		mParcel.readLong();
		}
		}
		}