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comparison test/runtime/NMT/ThreadedMallocTestType.java @ 9056:3b890cd4da64

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8009125: Add NMT tests for Virtual Memory operations Summary: Tests added for Reserve/Commit/Uncommit/Unreserve operations Reviewed-by: zgu, mgerdin
author ctornqvi
date Wed, 03 Apr 2013 21:41:33 +0200
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children ac12996df59b
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8852:a4e8dac9db8c 9056:3b890cd4da64
1 /*
2 * Copyright (c) 2013, Oracle and/or its affiliates. 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 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.
22 */
23
24 /*
25 * @test
26 * @key nmt jcmd
27 * @library /testlibrary /testlibrary/whitebox
28 * @build ThreadedMallocTestType
29 * @run main ClassFileInstaller sun.hotspot.WhiteBox
30 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail ThreadedMallocTestType
31 */
32
33 import com.oracle.java.testlibrary.*;
34 import sun.hotspot.WhiteBox;
35
36 public class ThreadedMallocTestType {
37 public static long memAlloc1;
38 public static long memAlloc2;
39 public static long memAlloc3;
40
41 public static void main(String args[]) throws Exception {
42 OutputAnalyzer output;
43 final WhiteBox wb = WhiteBox.getWhiteBox();
44
45 // Grab my own PID
46 String pid = Integer.toString(ProcessTools.getProcessId());
47 ProcessBuilder pb = new ProcessBuilder();
48
49 Thread allocThread = new Thread() {
50 public void run() {
51 // Alloc memory using the WB api
52 memAlloc1 = wb.NMTMalloc(128 * 1024);
53 memAlloc2 = wb.NMTMalloc(256 * 1024);
54 memAlloc3 = wb.NMTMalloc(512 * 1024);
55 }
56 };
57
58 allocThread.start();
59 allocThread.join();
60
61 // Use WB API to ensure that all data has been merged before we continue
62 if (!wb.NMTWaitForDataMerge()) {
63 throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
64 }
65
66 // Run 'jcmd <pid> VM.native_memory summary'
67 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary"});
68 output = new OutputAnalyzer(pb.start());
69 output.shouldContain("Test (reserved=896KB, committed=896KB)");
70
71 Thread freeThread = new Thread() {
72 public void run() {
73 // Free the memory allocated by NMTMalloc
74 wb.NMTFree(memAlloc1);
75 wb.NMTFree(memAlloc2);
76 wb.NMTFree(memAlloc3);
77 }
78 };
79
80 freeThread.start();
81 freeThread.join();
82
83 // Use WB API to ensure that all data has been merged before we continue
84 if (!wb.NMTWaitForDataMerge()) {
85 throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
86 }
87
88 output = new OutputAnalyzer(pb.start());
89 output.shouldNotContain("Test (reserved=");
90 }
91 }