Wed, 27 Aug 2014 08:35:03 -0400
8044140: Create NMT (Native Memory Tracking) tests for NMT2
Summary: Create new/modify existing tests for NMT2, which is an internal redesign to address scalability issues in the first implementation.
Reviewed-by: ctornqvi, zgu
Contributed-by: George Triantafillou <george.triantafillou@oracle.com>
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
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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
20 * or visit www.oracle.com if you need additional information or have any
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22 */
24 /*
25 * @test
26 * @key nmt jcmd
27 * @summary Verify that jcmd correctly reports that NMT is not enabled
28 * @library /testlibrary
29 * @ignore
30 * First run without enabling NMT
31 * @run main/othervm JcmdWithNMTDisabled
32 * Then run with explicitly disabling NMT, should not be any difference
33 * @run main/othervm -XX:NativeMemoryTracking=off JcmdWithNMTDisabled
34 */
36 import com.oracle.java.testlibrary.*;
38 public class JcmdWithNMTDisabled {
39 static ProcessBuilder pb = new ProcessBuilder();
40 static String pid;
42 public static void main(String args[]) throws Exception {
43 // Grab my own PID
44 pid = Integer.toString(ProcessTools.getProcessId());
46 jcmdCommand("summary");
47 jcmdCommand("detail");
48 jcmdCommand("baseline");
49 jcmdCommand("summary.diff");
50 jcmdCommand("detail.diff");
51 jcmdCommand("scale=GB");
52 jcmdCommand("shutdown");
53 }
55 // Helper method for invoking different jcmd calls, all should fail with the same message saying NMT is not enabled
56 public static void jcmdCommand(String command) throws Exception {
58 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", command});
59 OutputAnalyzer output = new OutputAnalyzer(pb.start());
61 // Verify that jcmd reports that NMT is not enabled
62 output.shouldContain("Native memory tracking is not enabled");
63 }
64 }