jdk8-mips64-public/hotspot: test/runtime/NMT/VirtualAllocTestType.java@ac12996df59b

8044140: Create NMT (Native Memory Tracking) tests for NMT2
Summary: Create new/modify existing tests for NMT2, which is an internal redesign to address scalability issues in the first implementation.
Reviewed-by: ctornqvi, zgu
Contributed-by: George Triantafillou <george.triantafillou@oracle.com>

     1 /*

     2  * Copyright (c) 2013, 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 Test Reserve/Commit/Uncommit/Release of virtual memory and that we track it correctly

    27  * @key nmt jcmd

    28  * @library /testlibrary /testlibrary/whitebox

    29  * @ignore

    30  * @build VirtualAllocTestType

    31  * @run main ClassFileInstaller sun.hotspot.WhiteBox

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

    33  */

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

    36 import sun.hotspot.WhiteBox;

    38 public class VirtualAllocTestType {

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

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

    42     OutputAnalyzer output;

    43     long commitSize = 128 * 1024;

    44     long reserveSize = 256 * 1024;

    45     long addr;

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

    48     ProcessBuilder pb = new ProcessBuilder();

    50     boolean has_nmt_detail = wb.NMTIsDetailSupported();

    51     if (has_nmt_detail) {

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

    53     } else {

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

    55     }

    57     addr = wb.NMTReserveMemory(reserveSize);

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

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

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

    62     if (has_nmt_detail) {

    63       output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved 256KB for Test");

    64     }

    66     wb.NMTCommitMemory(addr, commitSize);

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

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

    71     if (has_nmt_detail) {

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

    73     }

    75     wb.NMTUncommitMemory(addr, commitSize);

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

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

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

    82     wb.NMTReleaseMemory(addr, reserveSize);

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

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

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

    87   }

    88     }

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

test/runtime/NMT/VirtualAllocTestType.java@ac12996df59b

test/runtime/NMT/VirtualAllocTestType.java