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.regression; 18 19 import java.security.SecureRandom; 20 import java.util.Random; 21 22 public class RandomBenchmark { 23 public void timeNewRandom(int reps) throws Exception { 24 for (int i = 0; i < reps; ++i) { 25 Random rng = new Random(); 26 rng.nextInt(); 27 } 28 } 29 30 public void timeReusedRandom(int reps) throws Exception { 31 Random rng = new Random(); 32 for (int i = 0; i < reps; ++i) { 33 rng.nextInt(); 34 } 35 } 36 37 public void timeReusedSecureRandom(int reps) throws Exception { 38 SecureRandom rng = new SecureRandom(); 39 for (int i = 0; i < reps; ++i) { 40 rng.nextInt(); 41 } 42 } 43 44 public void timeNewSecureRandom(int reps) throws Exception { 45 for (int i = 0; i < reps; ++i) { 46 SecureRandom rng = new SecureRandom(); 47 rng.nextInt(); 48 } 49 } 50 } 51
