jdk8-mips64-public/hotspot: test/runtime/NMT/ThreadedVirtualAllocTestType.java@f90c822e73f8

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http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17

     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 ThreadedVirtualAllocTestType

    29  * @run main ClassFileInstaller sun.hotspot.WhiteBox

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

    31  */

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

    34 import sun.hotspot.WhiteBox;

    36 public class ThreadedVirtualAllocTestType {

    37   public static long addr;

    38   public static final WhiteBox wb = WhiteBox.getWhiteBox();

    39   public static final long commitSize = 128 * 1024;

    40   public static final long reserveSize = 512 * 1024;

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

    43     OutputAnalyzer output;

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

    46     ProcessBuilder pb = new ProcessBuilder();

    48     boolean has_nmt_detail = wb.NMTIsDetailSupported();

    49     if (has_nmt_detail) {

    50       System.out.println("NMT detail support detected.");

    51     } else {

    52       System.out.println("NMT detail support not detected.");

    53     }

    55     Thread reserveThread = new Thread() {

    56       public void run() {

    57         addr = wb.NMTReserveMemory(reserveSize);

    58       }

    59     };

    60     reserveThread.start();

    61     reserveThread.join();

    63     mergeData();

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

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

    67     output.shouldContain("Test (reserved=512KB, committed=0KB)");

    68     if (has_nmt_detail) {

    69       output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved 512KB for Test");

    70     }

    72     Thread commitThread = new Thread() {

    73       public void run() {

    74         wb.NMTCommitMemory(addr, commitSize);

    75       }

    76     };

    77     commitThread.start();

    78     commitThread.join();

    80     mergeData();

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

    83     output.shouldContain("Test (reserved=512KB, committed=128KB)");

    84     if (has_nmt_detail) {

    85       output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + commitSize) + "\\] committed 128KB");

    86     }

    88     Thread uncommitThread = new Thread() {

    89       public void run() {

    90         wb.NMTUncommitMemory(addr, commitSize);

    91       }

    92     };

    93     uncommitThread.start();

    94     uncommitThread.join();

    96     mergeData();

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

    99     output.shouldContain("Test (reserved=512KB, committed=0KB)");

   100     output.shouldNotMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + commitSize) + "\\] committed");

   102     Thread releaseThread = new Thread() {

   103       public void run() {

   104         wb.NMTReleaseMemory(addr, reserveSize);

   105       }

   106     };

   107     releaseThread.start();

   108     releaseThread.join();

   110     mergeData();

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

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

   114     output.shouldNotContain("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved");

   115   }

   117   public static void mergeData() throws Exception {

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

   119     if (!wb.NMTWaitForDataMerge()) {

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

   121     }

   122   }

   123 }

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

test/runtime/NMT/ThreadedVirtualAllocTestType.java@f90c822e73f8

test/runtime/NMT/ThreadedVirtualAllocTestType.java