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 * How much do various kinds of multiplication cost? 21 */ 22 public class MultiplicationBenchmark { 23 public int timeMultiplyIntByConstant10(int reps) { 24 int result = 1; 25 for (int i = 0; i < reps; ++i) { 26 result *= 10; 27 } 28 return result; 29 } 30 public int timeMultiplyIntByConstant8(int reps) { 31 int result = 1; 32 for (int i = 0; i < reps; ++i) { 33 result *= 8; 34 } 35 return result; 36 } 37 public int timeMultiplyIntByVariable10(int reps) { 38 int result = 1; 39 int factor = 10; 40 for (int i = 0; i < reps; ++i) { 41 result *= factor; 42 } 43 return result; 44 } 45 public int timeMultiplyIntByVariable8(int reps) { 46 int result = 1; 47 int factor = 8; 48 for (int i = 0; i < reps; ++i) { 49 result *= factor; 50 } 51 return result; 52 } 53 } 54
