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comparison test/runtime/NMT/AllocTestType.java @ 7977:879c6de913d6

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8005013: Add NMT tests Summary: Add tests for the Native Memory Tracking feature, includes regression tests for 8005936 and 8004802 Reviewed-by: zgu, coleenp
author ctornqvi
date Sat, 02 Feb 2013 16:34:10 +0100
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children 1b0dc9f87e75
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7976:ff5401ad5635 7977:879c6de913d6
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 * @summary Test consistency of NMT by leaking a few select allocations of the Test type and then verify visibility with jcmd
27 * @key nmt jcmd
28 * @library /testlibrary
29 * @run compile -J-XX:+UnlockDiagnosticVMOptions -J-XX:+WhiteBoxAPI AllocTestType.java
30 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail AllocTestType
31 */
32
33 import com.oracle.java.testlibrary.*;
34 import sun.hotspot.WhiteBox;
35
36 public class AllocTestType {
37
38 public static void main(String args[]) throws Exception {
39 OutputAnalyzer output;
40
41 // Grab my own PID
42 String pid = Integer.toString(ProcessTools.getProcessId());
43 ProcessBuilder pb = new ProcessBuilder();
44
45 // Use WB API to alloc with the mtTest type
46 if (!WhiteBox.getWhiteBox().NMTAllocTest()) {
47 throw new Exception("Call to WB API NMTAllocTest() failed");
48 }
49
50 // Use WB API to ensure that all data has been merged before we continue
51 if (!WhiteBox.getWhiteBox().NMTWaitForDataMerge()) {
52 throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
53 }
54
55 // Run 'jcmd <pid> VM.native_memory summary'
56 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary"});
57 output = new OutputAnalyzer(pb.start());
58 output.shouldContain("Test (reserved=512KB, committed=512KB)");
59
60 // Free the memory allocated by NMTAllocTest
61 if (!WhiteBox.getWhiteBox().NMTFreeTestMemory()) {
62 throw new Exception("Call to WB API NMTFreeTestMemory() failed");
63 }
64
65 // Use WB API to ensure that all data has been merged before we continue
66 if (!WhiteBox.getWhiteBox().NMTWaitForDataMerge()) {
67 throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
68 }
69 output = new OutputAnalyzer(pb.start());
70 output.shouldNotContain("Test (reserved=");
71 }
72 }