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
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
/*
* Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package nsk.jvmti.unit.functions.ForceGarbageCollection;
import java.io.PrintStream;
public class gc {
int k;
int y;
private final static int _SIZE = 3000000;
static {
try {
System.loadLibrary("gc");
} catch(UnsatisfiedLinkError ule) {
System.err.println("Could not load gc library");
System.err.println("java.library.path:"
+ System.getProperty("java.library.path"));
throw ule;
}
}
native static int GetResult();
native static void jvmtiForceGC();
native static void checkGCStart();
native static void checkGCFinish();
public static void main(String[] args) {
args = nsk.share.jvmti.JVMTITest.commonInit(args);
System.exit(run(args, System.out) + 95 /* STATUS_TEMP */ );
}
public static int run(String argv[], PrintStream out) {
jvmtiForceGC();
run();
jvmtiForceGC();
run1();
jvmtiForceGC();
run();
jvmtiForceGC();
checkGCStart();
checkGCFinish();
return GetResult();
}
public static void run() {
long start, end;
float difference;
start = Runtime.getRuntime().totalMemory();
try {
gc[] array = new gc[_SIZE];
for (int i = 0; i < _SIZE; i++) {
array[i] = new gc();
}
} catch (OutOfMemoryError e) {
System.out.println(e);
}
end = Runtime.getRuntime().totalMemory();
difference = ( end - start ) / _SIZE;
System.out.println("start = " + start);
System.out.println("end = " + end);
}
public static void run1() {
long start, end;
float difference;
start = Runtime.getRuntime().totalMemory();
try {
gc[] array = new gc[_SIZE];
for (int i = 0; i < _SIZE; i++) {
array[i] = new gc();
}
} catch (OutOfMemoryError e) {
System.out.println(e);
}
end = Runtime.getRuntime().totalMemory();
difference = ( end - start ) / _SIZE;
System.out.println("start = " + start);
System.out.println("end = " + end);
}
}
|
