1 /*

     2  * Copyright (c) 2013, 2016, 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 /test/lib

    29  * @modules java.base/jdk.internal.misc

    30  *          java.management

    31  * @run main/othervm -XX:NativeMemoryTracking=summary JcmdScale

    32  */

    33 

    34 import jdk.test.lib.process.ProcessTools;

    35 import jdk.test.lib.process.OutputAnalyzer;

    36 import jdk.test.lib.JDKToolFinder;

    37 

    38 public class JcmdScale {

    39 

    40   public static void main(String args[]) throws Exception {

    41     ProcessBuilder pb = new ProcessBuilder();

    42     OutputAnalyzer output;

    43     // Grab my own PID

    44     String pid = Long.toString(ProcessTools.getProcessId());

    45 

    46     pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=KB"});

    47     output = new OutputAnalyzer(pb.start());

    48     output.shouldContain("KB, committed=");

    49 

    50     pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=MB"});

    51     output = new OutputAnalyzer(pb.start());

    52     output.shouldContain("MB, committed=");

    53 

    54     pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=GB"});

    55     output = new OutputAnalyzer(pb.start());

    56     output.shouldContain("GB, committed=");

    57 

    58     pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=apa"});

    59     output = new OutputAnalyzer(pb.start());

    60     output.shouldContain("Incorrect scale value: apa");

    61 

    62     pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary", "scale=GB"});

    63     output = new OutputAnalyzer(pb.start());

    64     output.shouldContain("GB, committed=");

    65 

    66     pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary", "scale=apa"});

    67     output = new OutputAnalyzer(pb.start());

    68     output.shouldContain("Incorrect scale value: apa");

    69 

    70   }

    71 }