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comparison test/runtime/NMT/MallocRoundingReportTest.java @ 20804:7848fc12602b

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Merge with jdk8u40-b25
author Gilles Duboscq <gilles.m.duboscq@oracle.com>
date Tue, 07 Apr 2015 14:58:49 +0200
parents 6640f982c1be
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20184:84105dcdb05b 20804:7848fc12602b
1 /*
2 * Copyright (c) 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
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 creating allocations of the Test type with various sizes and verifying visibility with jcmd
27 * @key nmt jcmd
28 * @library /testlibrary /testlibrary/whitebox
29 * @build MallocRoundingReportTest
30 * @run main ClassFileInstaller sun.hotspot.WhiteBox
31 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocRoundingReportTest
32 *
33 */
34
35 import com.oracle.java.testlibrary.*;
36
37 import sun.hotspot.WhiteBox;
38
39 public class MallocRoundingReportTest {
40 private static long K = 1024;
41
42 public static void main(String args[]) throws Exception {
43 OutputAnalyzer output;
44 WhiteBox wb = WhiteBox.getWhiteBox();
45
46 // Grab my own PID
47 String pid = Integer.toString(ProcessTools.getProcessId());
48 ProcessBuilder pb = new ProcessBuilder();
49
50 long[] additionalBytes = {0, 1, 512, 650};
51 long[] kByteSize = {1024, 2048};
52 long mallocd_total = 0;
53 for ( int i = 0; i < kByteSize.length; i++)
54 {
55 for (int j = 0; j < (additionalBytes.length); j++) {
56 long curKB = kByteSize[i] + additionalBytes[j];
57 // round up/down to the nearest KB to match NMT reporting
58 long numKB = (curKB % kByteSize[i] >= 512) ? ((curKB / K) + 1) : curKB / K;
59 // Use WB API to alloc and free with the mtTest type
60 mallocd_total = wb.NMTMalloc(curKB);
61 // Run 'jcmd <pid> VM.native_memory summary', check for expected output
62 // NMT does not track memory allocations less than 1KB, and rounds to the nearest KB
63 String expectedOut = ("Test (reserved=" + numKB + "KB, committed=" + numKB + "KB)");
64
65 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary" });
66 output = new OutputAnalyzer(pb.start());
67 output.shouldContain(expectedOut);
68
69 wb.NMTFree(mallocd_total);
70 // Run 'jcmd <pid> VM.native_memory summary', check for expected output
71 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary" });
72 output = new OutputAnalyzer(pb.start());
73 output.shouldNotContain("Test (reserved=");
74 }
75 }
76 }
77 }