1/*
2 * Copyright (C) 2011 The Guava Authors
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 com.google.common.collect;
18
19import com.google.caliper.Benchmark;
20
21/**
22 * Benchmarking interners.
23 *
24 * @author Dimitris Andreou
25 */
26public class InternersBenchmark {
27  @Benchmark int weakInterner(int reps) {
28    Interner<String> interner = Interners.newWeakInterner();
29    for (int i = 0; i < reps; i++) {
30      interner.intern(Double.toHexString(Math.random()));
31    }
32    return reps;
33  }
34
35  @Benchmark int strongInterner(int reps) {
36    Interner<String> interner = Interners.newStrongInterner();
37    for (int i = 0; i < reps; i++) {
38      interner.intern(Double.toHexString(Math.random()));
39    }
40    return reps;
41  }
42
43  @SuppressWarnings("ReturnValueIgnored")
44  @Benchmark int stringIntern(int reps) {
45    for (int i = 0; i < reps; i++) {
46      Double.toHexString(Math.random()).intern();
47    }
48    return reps;
49  }
50}
51