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.util.zip.Adler32; 20 import java.util.zip.CRC32; 21 22 public class ChecksumBenchmark { 23 public void timeAdler_block(int reps) throws Exception { 24 byte[] bytes = new byte[10000]; 25 Adler32 adler = new Adler32(); 26 for (int i = 0; i < reps; ++i) { 27 adler.update(bytes); 28 } 29 } 30 public void timeAdler_byte(int reps) throws Exception { 31 Adler32 adler = new Adler32(); 32 for (int i = 0; i < reps; ++i) { 33 adler.update(1); 34 } 35 } 36 public void timeCrc_block(int reps) throws Exception { 37 byte[] bytes = new byte[10000]; 38 CRC32 crc = new CRC32(); 39 for (int i = 0; i < reps; ++i) { 40 crc.update(bytes); 41 } 42 } 43 public void timeCrc_byte(int reps) throws Exception { 44 CRC32 crc = new CRC32(); 45 for (int i = 0; i < reps; ++i) { 46 crc.update(1); 47 } 48 } 49 } 50
