JcmdScale.java revision 6884:e6122e00c927 
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 * @key nmt jcmd
27 * @summary Test the NMT scale parameter
28 * @library /testlibrary
29 * @run main/othervm -XX:NativeMemoryTracking=summary JcmdScale
30 */
31
32import com.oracle.java.testlibrary.*;
33
34public class JcmdScale {
35
36  public static void main(String args[]) throws Exception {
37    ProcessBuilder pb = new ProcessBuilder();
38    OutputAnalyzer output;
39    // Grab my own PID
40    String pid = Integer.toString(ProcessTools.getProcessId());
41
42    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=KB"});
43    output = new OutputAnalyzer(pb.start());
44    output.shouldContain("KB, committed=");
45
46    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=MB"});
47    output = new OutputAnalyzer(pb.start());
48    output.shouldContain("MB, committed=");
49
50    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=GB"});
51    output = new OutputAnalyzer(pb.start());
52    output.shouldContain("GB, committed=");
53
54    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=apa"});
55    output = new OutputAnalyzer(pb.start());
56    output.shouldContain("Incorrect scale value: apa");
57
58    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary", "scale=GB"});
59    output = new OutputAnalyzer(pb.start());
60    output.shouldContain("GB, committed=");
61
62    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary", "scale=apa"});
63    output = new OutputAnalyzer(pb.start());
64    output.shouldContain("Incorrect scale value: apa");
65
66  }
67}
68