author | iignatyev |
Wed, 15 Mar 2017 22:48:59 -0700 | |
changeset 44423 | 306c020eb154 |
parent 30376 | 2ccf2cf7ea48 |
permissions | -rw-r--r-- |
2 | 1 |
/* |
30376
2ccf2cf7ea48
8078896: Add @modules as needed to the jdk_svc tests
ykantser
parents:
5506
diff
changeset
|
2 |
* Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved. |
2 | 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 |
* |
|
5506 | 19 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
20 |
* or visit www.oracle.com if you need additional information or have any |
|
21 |
* questions. |
|
2 | 22 |
*/ |
23 |
||
24 |
/* |
|
25 |
* @test |
|
26 |
* @bug 4858522 |
|
27 |
* @summary Basic unit test of OperatingSystemMXBean.getTotalPhysicalMemorySize() |
|
28 |
* @author Steve Bohne |
|
29 |
*/ |
|
30 |
||
31 |
/* |
|
32 |
* This test is just a sanity check and does not check for the correct |
|
33 |
* value. The correct value should be checked manually: |
|
34 |
* Solaris: |
|
35 |
* 1. In a shell, enter the command: "prtconf" |
|
36 |
* 2. The value (reported in MBytes) is in the "Memory size" entry. |
|
37 |
* Linux: |
|
38 |
* 1. In a shell, enter the command: "cat /proc/meminfo" |
|
39 |
* 2. The value (reported in bytes) is in "Mem" entry, "total" column. |
|
40 |
* Windows NT/XP/2000: |
|
41 |
* 1. Hit Ctrl-Alt-Delete, select Task Manager, select Performance tab |
|
42 |
* 2. The value (reported in Kbytes) is in the "Physical Memory" box, |
|
43 |
* in the "Total" entry. |
|
44 |
* Windows 98/ME: |
|
45 |
* 1. Right click on My Computer, select Properties. Go to Performance tab. |
|
46 |
* 2. Total memory should be listed in the panel. |
|
47 |
*/ |
|
48 |
||
49 |
import com.sun.management.OperatingSystemMXBean; |
|
50 |
import java.lang.management.*; |
|
51 |
||
52 |
public class GetTotalPhysicalMemorySize { |
|
53 |
||
54 |
private static OperatingSystemMXBean mbean = |
|
55 |
(com.sun.management.OperatingSystemMXBean) |
|
56 |
ManagementFactory.getOperatingSystemMXBean(); |
|
57 |
||
58 |
// Careful with these values. |
|
59 |
// Min size for pass dynamically determined below. |
|
60 |
private static long min_size_for_pass = 1; |
|
61 |
private static final long MAX_SIZE_FOR_PASS = Long.MAX_VALUE; |
|
62 |
||
63 |
private static boolean trace = false; |
|
64 |
||
65 |
public static void main(String args[]) throws Exception { |
|
66 |
if (args.length > 0 && args[0].equals("trace")) { |
|
67 |
trace = true; |
|
68 |
} |
|
69 |
||
70 |
long min_size = mbean.getFreePhysicalMemorySize(); |
|
71 |
if (min_size > 0) { |
|
72 |
min_size_for_pass = min_size; |
|
73 |
} |
|
74 |
||
75 |
long size = mbean.getTotalPhysicalMemorySize(); |
|
76 |
||
77 |
if (trace) { |
|
78 |
System.out.println("Total physical memory size in bytes: " + size); |
|
79 |
} |
|
80 |
||
81 |
if (size < min_size_for_pass || size > MAX_SIZE_FOR_PASS) { |
|
82 |
throw new RuntimeException("Total physical memory size " + |
|
83 |
"illegal value: " + size + " bytes " + |
|
84 |
"(MIN = " + min_size_for_pass + "; " + |
|
85 |
"MAX = " + MAX_SIZE_FOR_PASS + ")"); |
|
86 |
} |
|
87 |
||
88 |
System.out.println("Test passed."); |
|
89 |
} |
|
90 |
} |