1 /* 2 * Copyright (C) 2012 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 com.google.caliper.AfterExperiment; 20 import com.google.caliper.BeforeExperiment; 21 22 public class ParcelBenchmark { 23 private static final int INNER_REPS = 1000; 24 25 private Parcel mParcel; 26 27 @BeforeExperiment 28 protected void setUp() { 29 mParcel = Parcel.obtain(); 30 mParcel.setDataPosition(0); 31 mParcel.setDataCapacity(INNER_REPS * 8); 32 } 33 34 @AfterExperiment 35 protected void tearDown() { 36 mParcel.recycle(); 37 mParcel = null; 38 } 39 40 public void timeWriteByte(int reps) { 41 final byte val = 0xF; 42 for (int i = 0; i < (reps / INNER_REPS); i++) { 43 mParcel.setDataPosition(0); 44 for (int j = 0; j < INNER_REPS; j++) { 45 mParcel.writeByte(val); 46 } 47 } 48 } 49 50 public void timeReadByte(int reps) { 51 for (int i = 0; i < (reps / INNER_REPS); i++) { 52 mParcel.setDataPosition(0); 53 for (int j = 0; j < INNER_REPS; j++) { 54 mParcel.readByte(); 55 } 56 } 57 } 58 59 public void timeWriteInt(int reps) { 60 final int val = 0xF; 61 for (int i = 0; i < (reps / INNER_REPS); i++) { 62 mParcel.setDataPosition(0); 63 for (int j = 0; j < INNER_REPS; j++) { 64 mParcel.writeInt(val); 65 } 66 } 67 } 68 69 public void timeReadInt(int reps) { 70 for (int i = 0; i < (reps / INNER_REPS); i++) { 71 mParcel.setDataPosition(0); 72 for (int j = 0; j < INNER_REPS; j++) { 73 mParcel.readInt(); 74 } 75 } 76 } 77 78 public void timeWriteLong(int reps) { 79 final long val = 0xF; 80 for (int i = 0; i < (reps / INNER_REPS); i++) { 81 mParcel.setDataPosition(0); 82 for (int j = 0; j < INNER_REPS; j++) { 83 mParcel.writeLong(val); 84 } 85 } 86 } 87 88 public void timeReadLong(int reps) { 89 for (int i = 0; i < (reps / INNER_REPS); i++) { 90 mParcel.setDataPosition(0); 91 for (int j = 0; j < INNER_REPS; j++) { 92 mParcel.readLong(); 93 } 94 } 95 } 96 } 97
