Gitiles
Code Review Sign In
gerrit-public.fairphone.software / platform / libcore / 319a3b994703aac84df7bcde272adfcb3cdbbbf0 / . / jdk / test / java / rmi / reliability / benchmark / bench / serial / ClassDesc.java
blob: 47895b560c6c511fc0195f5b694ca80eeb55f1c9 [file] [log] [blame]
J. Duke319a3b92007-12-01 00:00:00 +0000[diff] [blame^]1/*
2 * Copyright 1999 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 */
23
24/*
25 *
26 */
27
28package bench.serial;
29
30import bench.Benchmark;
31import java.io.ObjectInputStream;
32import java.io.ObjectOutputStream;
33import java.io.ObjectStreamClass;
34import java.io.Serializable;
35
36/**
37 * Benchmark for testing speed of class descriptor reads/writes.
38 */
39public class ClassDesc implements Benchmark {
40
41 static class Dummy0 implements Serializable { Dummy0 i0; }
42 static class Dummy1 extends Dummy0 { Dummy1 i1; }
43 static class Dummy2 extends Dummy1 { Dummy2 i2; }
44 static class Dummy3 extends Dummy2 { Dummy3 i3; }
45 static class Dummy4 extends Dummy3 { Dummy4 i4; }
46 static class Dummy5 extends Dummy4 { Dummy5 i5; }
47 static class Dummy6 extends Dummy5 { Dummy6 i6; }
48 static class Dummy7 extends Dummy6 { Dummy7 i7; }
49 static class Dummy8 extends Dummy7 { Dummy8 i8; }
50 static class Dummy9 extends Dummy8 { Dummy9 i9; }
51 static class Dummy10 extends Dummy9 { Dummy10 i10; }
52 static class Dummy11 extends Dummy10 { Dummy11 i11; }
53 static class Dummy12 extends Dummy11 { Dummy12 i12; }
54 static class Dummy13 extends Dummy12 { Dummy13 i13; }
55 static class Dummy14 extends Dummy13 { Dummy14 i14; }
56 static class Dummy15 extends Dummy14 { Dummy15 i15; }
57 static class Dummy16 extends Dummy15 { Dummy16 i16; }
58 static class Dummy17 extends Dummy16 { Dummy17 i17; }
59 static class Dummy18 extends Dummy17 { Dummy18 i18; }
60 static class Dummy19 extends Dummy18 { Dummy19 i19; }
61 static class Dummy20 extends Dummy19 { Dummy20 i20; }
62 static class Dummy21 extends Dummy20 { Dummy21 i21; }
63 static class Dummy22 extends Dummy21 { Dummy22 i22; }
64 static class Dummy23 extends Dummy22 { Dummy23 i23; }
65 static class Dummy24 extends Dummy23 { Dummy24 i24; }
66 static class Dummy25 extends Dummy24 { Dummy25 i25; }
67 static class Dummy26 extends Dummy25 { Dummy26 i26; }
68 static class Dummy27 extends Dummy26 { Dummy27 i27; }
69 static class Dummy28 extends Dummy27 { Dummy28 i28; }
70 static class Dummy29 extends Dummy28 { Dummy29 i29; }
71 static class Dummy30 extends Dummy29 { Dummy30 i30; }
72 static class Dummy31 extends Dummy30 { Dummy31 i31; }
73 static class Dummy32 extends Dummy31 { Dummy32 i32; }
74 static class Dummy33 extends Dummy32 { Dummy33 i33; }
75 static class Dummy34 extends Dummy33 { Dummy34 i34; }
76 static class Dummy35 extends Dummy34 { Dummy35 i35; }
77 static class Dummy36 extends Dummy35 { Dummy36 i36; }
78 static class Dummy37 extends Dummy36 { Dummy37 i37; }
79 static class Dummy38 extends Dummy37 { Dummy38 i38; }
80 static class Dummy39 extends Dummy38 { Dummy39 i39; }
81 static class Dummy40 extends Dummy39 { Dummy40 i40; }
82 static class Dummy41 extends Dummy40 { Dummy41 i41; }
83 static class Dummy42 extends Dummy41 { Dummy42 i42; }
84 static class Dummy43 extends Dummy42 { Dummy43 i43; }
85 static class Dummy44 extends Dummy43 { Dummy44 i44; }
86 static class Dummy45 extends Dummy44 { Dummy45 i45; }
87 static class Dummy46 extends Dummy45 { Dummy46 i46; }
88 static class Dummy47 extends Dummy46 { Dummy47 i47; }
89 static class Dummy48 extends Dummy47 { Dummy48 i48; }
90 static class Dummy49 extends Dummy48 { Dummy49 i49; }
91 static class Dummy50 extends Dummy49 { Dummy50 i50; }
92
93 /**
94 * Write and read class descriptors to/from a stream.
95 * Arguments: <# cycles>
96 */
97 public long run(String[] args) throws Exception {
98 int ncycles = Integer.parseInt(args[0]);
99 StreamBuffer sbuf = new StreamBuffer();
100 ObjectOutputStream oout =
101 new ObjectOutputStream(sbuf.getOutputStream());
102 ObjectInputStream oin =
103 new ObjectInputStream(sbuf.getInputStream());
104 ObjectStreamClass desc = ObjectStreamClass.lookup(Dummy50.class);
105
106 doReps(oout, oin, sbuf, desc, 1); // warmup
107
108 long start = System.currentTimeMillis();
109 doReps(oout, oin, sbuf, desc, ncycles);
110 return System.currentTimeMillis() - start;
111 }
112
113 /**
114 * Run benchmark for given number of cycles.
115 */
116 void doReps(ObjectOutputStream oout, ObjectInputStream oin,
117 StreamBuffer sbuf, ObjectStreamClass desc, int ncycles)
118 throws Exception
119 {
120 for (int i = 0; i < ncycles; i++) {
121 sbuf.reset();
122 oout.reset();
123 oout.writeObject(desc);
124 oout.flush();
125 oin.readObject();
126 }
127 }
128}
129