jdk8-mips64-public/hotspot: test/runtime/NMT/ReleaseNoCommit.java@4edd7572c235

8054836: [TESTBUG] Test is needed to verify correctness of malloc tracking
Reviewed-by: ctornqvi, lfoltan

     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  */

    24 /*

    25  * @test

    26  * @summary Release uncommitted memory and make sure NMT handles it correctly

    27  * @key nmt regression

    28  * @library /testlibrary /testlibrary/whitebox

    29  * @build ReleaseNoCommit

    30  * @run main ClassFileInstaller sun.hotspot.WhiteBox

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

    32  */

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

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

    36 import com.oracle.java.testlibrary.ProcessTools;

    38 import sun.hotspot.WhiteBox;

    40 public class ReleaseNoCommit {

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

    43         WhiteBox wb = WhiteBox.getWhiteBox();

    44         long reserveSize = 256 * 1024;

    45         long addr;

    47         ProcessBuilder pb = new ProcessBuilder();

    48         OutputAnalyzer output;

    49         // Grab my own PID

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

    52         addr = wb.NMTReserveMemory(reserveSize);

    53         // Check for reserved

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

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

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

    58         wb.NMTReleaseMemory(addr, reserveSize);

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

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

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

    63     }

    64 }

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