Tue, 09 Sep 2014 09:48:42 -0700
8054836: [TESTBUG] Test is needed to verify correctness of malloc tracking
Reviewed-by: ctornqvi, lfoltan
1 /*
2 * Copyright (c) 2013, 2014, 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
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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
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21 * questions.
22 */
24 /*
25 * @test
26 * @key nmt jcmd
27 * @library /testlibrary /testlibrary/whitebox
28 * @build ThreadedVirtualAllocTestType
29 * @run main ClassFileInstaller sun.hotspot.WhiteBox
30 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail ThreadedVirtualAllocTestType
31 */
33 import com.oracle.java.testlibrary.*;
34 import sun.hotspot.WhiteBox;
36 public class ThreadedVirtualAllocTestType {
37 public static long addr;
38 public static final WhiteBox wb = WhiteBox.getWhiteBox();
39 public static final long commitSize = 128 * 1024;
40 public static final long reserveSize = 512 * 1024;
42 public static void main(String args[]) throws Exception {
43 OutputAnalyzer output;
45 String pid = Integer.toString(ProcessTools.getProcessId());
46 ProcessBuilder pb = new ProcessBuilder();
48 boolean has_nmt_detail = wb.NMTIsDetailSupported();
49 if (has_nmt_detail) {
50 System.out.println("NMT detail support detected.");
51 } else {
52 System.out.println("NMT detail support not detected.");
53 }
55 Thread reserveThread = new Thread() {
56 public void run() {
57 addr = wb.NMTReserveMemory(reserveSize);
58 }
59 };
60 reserveThread.start();
61 reserveThread.join();
63 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "detail"});
64 output = new OutputAnalyzer(pb.start());
65 output.shouldContain("Test (reserved=512KB, committed=0KB)");
66 if (has_nmt_detail) {
67 output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved 512KB for Test");
68 }
70 Thread commitThread = new Thread() {
71 public void run() {
72 wb.NMTCommitMemory(addr, commitSize);
73 }
74 };
75 commitThread.start();
76 commitThread.join();
78 output = new OutputAnalyzer(pb.start());
79 output.shouldContain("Test (reserved=512KB, committed=128KB)");
80 if (has_nmt_detail) {
81 output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + commitSize) + "\\] committed 128KB");
82 }
84 Thread uncommitThread = new Thread() {
85 public void run() {
86 wb.NMTUncommitMemory(addr, commitSize);
87 }
88 };
89 uncommitThread.start();
90 uncommitThread.join();
92 output = new OutputAnalyzer(pb.start());
93 output.shouldContain("Test (reserved=512KB, committed=0KB)");
94 output.shouldNotMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + commitSize) + "\\] committed");
96 Thread releaseThread = new Thread() {
97 public void run() {
98 wb.NMTReleaseMemory(addr, reserveSize);
99 }
100 };
101 releaseThread.start();
102 releaseThread.join();
104 output = new OutputAnalyzer(pb.start());
105 output.shouldNotContain("Test (reserved=");
106 output.shouldNotContain("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved");
107 }
109 }