1 /* 2 * Copyright (C) 2011 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 com.google.caliper.BeforeExperiment; 20 import com.google.caliper.Param; 21 import java.util.BitSet; 22 23 public class BitSetBenchmark { 24 @Param({ "1000", "10000" }) 25 private int size; 26 27 private BitSet bs; 28 29 @BeforeExperiment 30 protected void setUp() throws Exception { 31 bs = new BitSet(size); 32 } 33 34 public void timeIsEmptyTrue(int reps) { 35 for (int i = 0; i < reps; ++i) { 36 if (!bs.isEmpty()) throw new RuntimeException(); 37 } 38 } 39 40 public void timeIsEmptyFalse(int reps) { 41 bs.set(bs.size() - 1); 42 for (int i = 0; i < reps; ++i) { 43 if (bs.isEmpty()) throw new RuntimeException(); 44 } 45 } 46 47 public void timeGet(int reps) { 48 for (int i = 0; i < reps; ++i) { 49 bs.get(i % size); 50 } 51 } 52 53 public void timeClear(int reps) { 54 for (int i = 0; i < reps; ++i) { 55 bs.clear(i % size); 56 } 57 } 58 59 public void timeSet(int reps) { 60 for (int i = 0; i < reps; ++i) { 61 bs.set(i % size); 62 } 63 } 64 65 public void timeSetOn(int reps) { 66 for (int i = 0; i < reps; ++i) { 67 bs.set(i % size, true); 68 } 69 } 70 71 public void timeSetOff(int reps) { 72 for (int i = 0; i < reps; ++i) { 73 bs.set(i % size, false); 74 } 75 } 76 } 77
