jdk8-mips64-public/hotspot: test/gc/whitebox/TestConcMarkCycleWB.java@047a642c9729

8065579: WB method to start G1 concurrent mark cycle should be introduced
Summary: Add a WhiteBox callback to the VM to start a concurrent mark cycle in G1.
Reviewed-by: tschatzl, sjohanss
Contributed-by: Leonid Mesnik <leonid.mesnik@oracle.com>

     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 TestConMarkCycleWB

    26  * @bug 8065579

    27  * @requires vm.gc=="null" | vm.gc=="G1"

    28  * @library /testlibrary /testlibrary/whitebox

    29  * @build ClassFileInstaller com.oracle.java.testlibrary.* sun.hotspot.WhiteBox TestConcMarkCycleWB

    30  * @run main ClassFileInstaller sun.hotspot.WhiteBox

    31  *                              sun.hotspot.WhiteBox$WhiteBoxPermission

    32  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:+UseG1GC TestConcMarkCycleWB

    33  * @summary Verifies that ConcurrentMarking-related WB works properly

    34  */

    35 import static com.oracle.java.testlibrary.Asserts.assertFalse;

    36 import static com.oracle.java.testlibrary.Asserts.assertTrue;

    37 import sun.hotspot.WhiteBox;

    39 public class TestConcMarkCycleWB {

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

    42         WhiteBox wb = WhiteBox.getWhiteBox();

    44         wb.youngGC();

    45         assertTrue(wb.g1StartConcMarkCycle());

    46         while (wb.g1InConcurrentMark()) {

    47             Thread.sleep(5);

    48         }

    50         wb.fullGC();

    51         assertTrue(wb.g1StartConcMarkCycle());

    52         while (wb.g1InConcurrentMark()) {

    53             Thread.sleep(5);

    54         }

    55         assertTrue(wb.g1StartConcMarkCycle());

    56     }

    57 }

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

test/gc/whitebox/TestConcMarkCycleWB.java@047a642c9729

test/gc/whitebox/TestConcMarkCycleWB.java