blob: ee4f2d9d1d5f37b93f965fd3480d0a58622017c4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
/*
* Copyright (C) 2010 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package benchmarks.regression;
import com.google.caliper.Param;
import com.google.caliper.Runner;
import com.google.caliper.SimpleBenchmark;
import java.util.concurrent.atomic.AtomicInteger;
public final class MutableIntBenchmark extends SimpleBenchmark {
enum Kind {
ARRAY() {
int[] value = new int[1];
@Override void timeCreate(int reps) {
for (int i = 0; i < reps; i++) {
value = new int[] { 5 };
}
}
@Override void timeIncrement(int reps) {
for (int i = 0; i < reps; i++) {
value[0]++;
}
}
@Override int timeGet(int reps) {
int sum = 0;
for (int i = 0; i < reps; i++) {
sum += value[0];
}
return sum;
}
},
ATOMIC() {
AtomicInteger value = new AtomicInteger();
@Override void timeCreate(int reps) {
for (int i = 0; i < reps; i++) {
value = new AtomicInteger(5);
}
}
@Override void timeIncrement(int reps) {
for (int i = 0; i < reps; i++) {
value.incrementAndGet();
}
}
@Override int timeGet(int reps) {
int sum = 0;
for (int i = 0; i < reps; i++) {
sum += value.intValue();
}
return sum;
}
};
abstract void timeCreate(int reps);
abstract void timeIncrement(int reps);
abstract int timeGet(int reps);
}
@Param Kind kind;
public void timeCreate(int reps) {
kind.timeCreate(reps);
}
public void timeIncrement(int reps) {
kind.timeIncrement(reps);
}
public void timeGet(int reps) {
kind.timeGet(reps);
}
public static void main(String[] args) {
Runner.main(MutableIntBenchmark.class, args);
}
}
|
