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Java > Open Source Codes > test > CastBench


1 /**************************************************************************************
2  * Copyright (c) Jonas BonŽr, Alexandre Vasseur. All rights reserved. *
3  * http://aspectwerkz.codehaus.org *
4  * ---------------------------------------------------------------------------------- *
5  * The software in this package is published under the terms of the LGPL license *
6  * a copy of which has been included with this distribution in the license.txt file. *
7  **************************************************************************************/
8 package test;
9
10 /**
11  * @author <a HREF="mailto:jboner@codehaus.org">Jonas BonŽr </a>
12  */
13 public class CastBench implements Cast {
14     private static final int NR_INVOCATIONS = 1000000000;
15
16     public void invoke() {
17     }
18
19     public void invokeInterface() {
20     }
21
22     public static void main(String JavaDoc[] args) {
23         CastBench bench = new CastBench();
24         for (int i = 0; i < NR_INVOCATIONS; i++) {
25             bench.invoke();
26         }
27
28         benchRegularInvoke(bench);
29         benchInterfaceInvoke(bench);
30         benchCastInvoke(bench);
31     }
32
33     private static void benchCastInvoke(CastBench bench) {
34         long start = System.currentTimeMillis();
35         for (int i = 0; i < NR_INVOCATIONS; i++) {
36             ((Cast) bench).invokeInterface();
37         }
38         long end = System.currentTimeMillis() - start;
39         double time = end / (double) NR_INVOCATIONS;
40         System.out.println("cast invoke = " + time);
41     }
42
43     private static void benchInterfaceInvoke(Cast bench) {
44         long start = System.currentTimeMillis();
45         for (int i = 0; i < NR_INVOCATIONS; i++) {
46             bench.invokeInterface();
47         }
48         long end = System.currentTimeMillis() - start;
49         double time = end / (double) NR_INVOCATIONS;
50         System.out.println("interface invoke = " + time);
51     }
52
53     private static void benchRegularInvoke(CastBench bench) {
54         long start = System.currentTimeMillis();
55         for (int i = 0; i < NR_INVOCATIONS; i++) {
56             bench.invoke();
57         }
58         long end = System.currentTimeMillis() - start;
59         double time = end / (double) NR_INVOCATIONS;
60         System.out.println("regular invoke = " + time);
61     }
62 }
63
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