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
17package benchmarks.regression;
18
19import com.google.caliper.Param;
20import com.google.caliper.SimpleBenchmark;
21import java.util.BitSet;
22
23public class BitSetBenchmark extends SimpleBenchmark {
24    @Param({ "1000", "10000" })
25    private int size;
26
27    private BitSet bs;
28
29    @Override protected void setUp() throws Exception {
30        bs = new BitSet(size);
31    }
32
33    public void timeIsEmptyTrue(int reps) {
34        for (int i = 0; i < reps; ++i) {
35            if (!bs.isEmpty()) throw new RuntimeException();
36        }
37    }
38
39    public void timeIsEmptyFalse(int reps) {
40        bs.set(bs.size() - 1);
41        for (int i = 0; i < reps; ++i) {
42            if (bs.isEmpty()) throw new RuntimeException();
43        }
44    }
45
46    public void timeGet(int reps) {
47        for (int i = 0; i < reps; ++i) {
48            bs.get(i % size);
49        }
50    }
51
52    public void timeClear(int reps) {
53        for (int i = 0; i < reps; ++i) {
54            bs.clear(i % size);
55        }
56    }
57
58    public void timeSet(int reps) {
59        for (int i = 0; i < reps; ++i) {
60            bs.set(i % size);
61        }
62    }
63
64    public void timeSetOn(int reps) {
65        for (int i = 0; i < reps; ++i) {
66            bs.set(i % size, true);
67        }
68    }
69
70    public void timeSetOff(int reps) {
71        for (int i = 0; i < reps; ++i) {
72            bs.set(i % size, false);
73        }
74    }
75}
76