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comparison test/runtime/NMT/VirtualAllocTestType.java @ 9077:480d934f62a8

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Merge
author mgerdin
date Thu, 11 Apr 2013 16:35:34 +0200
parents 3b890cd4da64
children 5fd8e2fbafd4
comparison
equal deleted inserted replaced
9076:7b835924c31c 9077:480d934f62a8
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 Reserve/Commit/Uncommit/Release of virtual memory and that we track it correctly
27 * @key nmt jcmd
28 * @library /testlibrary /testlibrary/whitebox
29 * @build VirtualAllocTestType
30 * @run main ClassFileInstaller sun.hotspot.WhiteBox
31 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail VirtualAllocTestType
32 */
33
34 import com.oracle.java.testlibrary.*;
35 import sun.hotspot.WhiteBox;
36
37 public class VirtualAllocTestType {
38
39 public static WhiteBox wb = WhiteBox.getWhiteBox();
40 public static void main(String args[]) throws Exception {
41 OutputAnalyzer output;
42 long commitSize = 128 * 1024;
43 long reserveSize = 256 * 1024;
44 long addr;
45
46 String pid = Integer.toString(ProcessTools.getProcessId());
47 ProcessBuilder pb = new ProcessBuilder();
48
49 addr = wb.NMTReserveMemory(reserveSize);
50 mergeData();
51
52 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "detail"});
53 output = new OutputAnalyzer(pb.start());
54 output.shouldContain("Test (reserved=256KB, committed=0KB)");
55 output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved 256KB for Test");
56
57 wb.NMTCommitMemory(addr, commitSize);
58
59 mergeData();
60
61 output = new OutputAnalyzer(pb.start());
62 output.shouldContain("Test (reserved=256KB, committed=128KB)");
63 output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + commitSize) + "\\] committed 128KB");
64
65 wb.NMTUncommitMemory(addr, commitSize);
66
67 mergeData();
68
69 output = new OutputAnalyzer(pb.start());
70 output.shouldContain("Test (reserved=256KB, committed=0KB)");
71 output.shouldNotMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + commitSize) + "\\] committed");
72
73 wb.NMTReleaseMemory(addr, reserveSize);
74
75 mergeData();
76
77 output = new OutputAnalyzer(pb.start());
78 output.shouldNotContain("Test (reserved=");
79 output.shouldNotMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved");
80 }
81
82 public static void mergeData() throws Exception {
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 }