jdk8-mips64-public/hotspot: test/runtime/NMT/MallocSiteHashOverflow.java@6640f982c1be

8054711: [TESTBUG] Enable NMT2 tests after NMT2 is integrated
Summary: enable tests for NMT2
Reviewed-by: ctornqvi, zgu

     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  * @key stress

    26  * @test

    27  * @summary Test corner case that overflows malloc site hashtable bucket

    28  * @key nmt jcmd

    29  * @library /testlibrary /testlibrary/whitebox

    30  * @ignore - This test is disabled since it will stress NMT and timeout during normal testing

    31  * @build MallocSiteHashOverflow

    32  * @run main ClassFileInstaller sun.hotspot.WhiteBox

    33  * @run main/othervm/timeout=480 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocSiteHashOverflow

    34  */

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

    37 import sun.hotspot.WhiteBox;

    39 public class MallocSiteHashOverflow {

    40     private static long K = 1024;

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

    42         String vm_name = System.getProperty("java.vm.name");

    44         // For 32-bit systems, create 257 malloc sites with the same hash bucket to overflow a hash bucket

    45         // For 64-bit systems, create 64K + 1 malloc sites with the same hash bucket to overflow a hash bucket

    46         long entries = 257;

    47         if (Platform.is64bit()) {

    48             entries = 64 * K + 1;

    49         }

    51         OutputAnalyzer output;

    52         WhiteBox wb = WhiteBox.getWhiteBox();

    54         // Grab my own PID

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

    56         ProcessBuilder pb = new ProcessBuilder();

    58         wb.NMTOverflowHashBucket(entries);

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

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

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

    63         output.shouldContain("Tracking level has been downgraded due to lack of resources");

    64     }

    65 }

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

test/runtime/NMT/MallocSiteHashOverflow.java@6640f982c1be

test/runtime/NMT/MallocSiteHashOverflow.java