jdk8-mips64-public/hotspot: test/runtime/NMT/ThreadedMallocTestType.java@fb9d124d9192

     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  */

    24 /*

    25  * @test

    26  * @key nmt jcmd

    27  * @library /testlibrary /testlibrary/whitebox

    28  * @build ThreadedMallocTestType

    29  * @run main ClassFileInstaller sun.hotspot.WhiteBox

    30  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail ThreadedMallocTestType

    31  */

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

    34 import sun.hotspot.WhiteBox;

    36 public class ThreadedMallocTestType {

    37   public static long memAlloc1;

    38   public static long memAlloc2;

    39   public static long memAlloc3;

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

    42     OutputAnalyzer output;

    43     final WhiteBox wb = WhiteBox.getWhiteBox();

    45     // Grab my own PID

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

    47     ProcessBuilder pb = new ProcessBuilder();

    49     Thread allocThread = new Thread() {

    50       public void run() {

    51         // Alloc memory using the WB api

    52         memAlloc1 = wb.NMTMalloc(128 * 1024);

    53         memAlloc2 = wb.NMTMalloc(256 * 1024);

    54         memAlloc3 = wb.NMTMalloc(512 * 1024);

    55       }

    56     };

    58     allocThread.start();

    59     allocThread.join();

    61     // Use WB API to ensure that all data has been merged before we continue

    62     if (!wb.NMTWaitForDataMerge()) {

    63       throw new Exception("Call to WB API NMTWaitForDataMerge() failed");

    64     }

    66     // Run 'jcmd <pid> VM.native_memory summary'

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

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

    69     output.shouldContain("Test (reserved=896KB, committed=896KB)");

    71     Thread freeThread = new Thread() {

    72       public void run() {

    73         // Free the memory allocated by NMTMalloc

    74         wb.NMTFree(memAlloc1);

    75         wb.NMTFree(memAlloc2);

    76         wb.NMTFree(memAlloc3);

    77       }

    78     };

    80     freeThread.start();

    81     freeThread.join();

    83     // Use WB API to ensure that all data has been merged before we continue

    84     if (!wb.NMTWaitForDataMerge()) {

    85       throw new Exception("Call to WB API NMTWaitForDataMerge() failed");

    86     }

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

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

    90   }

    91 }

Mercurial > jdk8-mips64-public > hotspot / file revision

test/runtime/NMT/ThreadedMallocTestType.java@fb9d124d9192

test/runtime/NMT/ThreadedMallocTestType.java