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.math.BigInteger; 20 import java.util.Random; 21 22 public class BigIntegerBenchmark { 23 public void timeRandomDivision(int reps) throws Exception { 24 Random r = new Random(); 25 BigInteger x = new BigInteger(1024, r); 26 BigInteger y = new BigInteger(1024, r); 27 for (int i = 0; i < reps; ++i) { 28 x.divide(y); 29 } 30 } 31 32 public void timeRandomGcd(int reps) throws Exception { 33 Random r = new Random(); 34 BigInteger x = new BigInteger(1024, r); 35 BigInteger y = new BigInteger(1024, r); 36 for (int i = 0; i < reps; ++i) { 37 x.gcd(y); 38 } 39 } 40 41 public void timeRandomMultiplication(int reps) throws Exception { 42 Random r = new Random(); 43 BigInteger x = new BigInteger(1024, r); 44 BigInteger y = new BigInteger(1024, r); 45 for (int i = 0; i < reps; ++i) { 46 x.multiply(y); 47 } 48 } 49 } 50
