1 /* 2 * Copyright (C) 2010 Google Inc. 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 benchmarks; 18 19 /** 20 * What do various kinds of addition cost? 21 */ 22 public class AdditionBenchmark { 23 public int timeAddConstantToLocalInt(int reps) { 24 int result = 0; 25 for (int i = 0; i < reps; ++i) { 26 result += 123; 27 } 28 return result; 29 } 30 public int timeAddTwoLocalInts(int reps) { 31 int result = 0; 32 int constant = 123; 33 for (int i = 0; i < reps; ++i) { 34 result += constant; 35 } 36 return result; 37 } 38 public long timeAddConstantToLocalLong(int reps) { 39 long result = 0; 40 for (int i = 0; i < reps; ++i) { 41 result += 123L; 42 } 43 return result; 44 } 45 public long timeAddTwoLocalLongs(int reps) { 46 long result = 0; 47 long constant = 123L; 48 for (int i = 0; i < reps; ++i) { 49 result += constant; 50 } 51 return result; 52 } 53 public float timeAddConstantToLocalFloat(int reps) { 54 float result = 0.0f; 55 for (int i = 0; i < reps; ++i) { 56 result += 123.0f; 57 } 58 return result; 59 } 60 public float timeAddTwoLocalFloats(int reps) { 61 float result = 0.0f; 62 float constant = 123.0f; 63 for (int i = 0; i < reps; ++i) { 64 result += constant; 65 } 66 return result; 67 } 68 public double timeAddConstantToLocalDouble(int reps) { 69 double result = 0.0; 70 for (int i = 0; i < reps; ++i) { 71 result += 123.0; 72 } 73 return result; 74 } 75 public double timeAddTwoLocalDoubles(int reps) { 76 double result = 0.0; 77 double constant = 123.0; 78 for (int i = 0; i < reps; ++i) { 79 result += constant; 80 } 81 return result; 82 } 83 } 84
