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 run NMT baseline, allocate memory and verify output from summary.diff

    27  * @key nmt jcmd

    28  * @library /testlibrary /testlibrary/whitebox

    29  * @build JcmdSummaryDiff

    30  * @ignore

    31  * @run main ClassFileInstaller sun.hotspot.WhiteBox

    32  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=summary JcmdSummaryDiff

    33  */

    34 

    35 import com.oracle.java.testlibrary.*;

    36 

    37 import sun.hotspot.WhiteBox;

    38 

    39 public class JcmdSummaryDiff {

    40 

    41     public static WhiteBox wb = WhiteBox.getWhiteBox();

    42 

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

    44         ProcessBuilder pb = new ProcessBuilder();

    45         OutputAnalyzer output;

    46         // Grab my own PID

    47         String pid = Integer.toString(ProcessTools.getProcessId());

    48 

    49         long commitSize = 128 * 1024;

    50         long reserveSize = 256 * 1024;

    51         long addr;

    52 

    53         // Run 'jcmd <pid> VM.native_memory baseline=true'

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

    55         pb.start().waitFor();

    56 

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

    58         output.shouldContain("Baseline succeeded");

    59 

    60         addr = wb.NMTReserveMemory(reserveSize);

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

    62 

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

    64         output.shouldContain("Test (reserved=256KB +256KB, committed=0KB)");

    65 

    66         wb.NMTCommitMemory(addr, commitSize);

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

    68 

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

    70         output.shouldContain("Test (reserved=256KB +256KB, committed=128KB +128KB)");

    71 

    72         wb.NMTUncommitMemory(addr, commitSize);

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

    74 

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

    76         output.shouldContain("Test (reserved=256KB +256KB, committed=0KB)");

    77 

    78         wb.NMTReleaseMemory(addr, reserveSize);

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

    80 

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

    82         output.shouldNotContain("Test (reserved=");

    83     }

    84 }