jdk8-mips64-public/hotspot: test/runtime/NMT/MallocTestType.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  * @summary Test consistency of NMT by leaking a few select allocations of the Test type and then verify visibility with jcmd

    27  * @key nmt jcmd

    28  * @library /testlibrary /testlibrary/whitebox

    29  * @build MallocTestType

    30  * @run main ClassFileInstaller sun.hotspot.WhiteBox

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

    32  */

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

    35 import sun.hotspot.WhiteBox;

    37 public class MallocTestType {

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

    40     OutputAnalyzer output;

    41     WhiteBox wb = WhiteBox.getWhiteBox();

    43     // Grab my own PID

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

    45     ProcessBuilder pb = new ProcessBuilder();

    47     // Use WB API to alloc and free with the mtTest type

    48     long memAlloc3 = wb.NMTMalloc(128 * 1024);

    49     long memAlloc2 = wb.NMTMalloc(256 * 1024);

    50     wb.NMTFree(memAlloc3);

    51     long memAlloc1 = wb.NMTMalloc(512 * 1024);

    52     wb.NMTFree(memAlloc2);

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

    55     if (!wb.NMTWaitForDataMerge()) {

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

    57     }

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

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

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

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

    64     // Free the memory allocated by NMTAllocTest

    65     wb.NMTFree(memAlloc1);

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

    68     if (!wb.NMTWaitForDataMerge()) {

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

    70     }

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

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

    73   }

    74 }

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