jdk8-mips64-public/hotspot: test/gc/arguments/TestInitialTenuringThreshold.java@3b4e1b5c13a0

8037510: CMM Testing: Min/MaxHeapFreeRatio flags should be manageable through the API
Summary: Added tests for Min/MaxHeapFreeRatio flags
Reviewed-by: jwilhelm, tschatzl
Contributed-by: andrey.x.zakharov@oracle.com

     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 TestInitialTenuringThreshold

    26  * @key gc

    27  * @bug 8014765

    28  * @summary Tests argument processing for initial tenuring threshold

    29  * @library /testlibrary

    30  * @run main/othervm TestInitialTenuringThreshold

    31  * @author thomas.schatzl@oracle.com

    32  */

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

    36 public class TestInitialTenuringThreshold {

    38   public static void runWithThresholds(int initial, int max, boolean shouldfail) throws Exception {

    39     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

    40       "-XX:InitialTenuringThreshold=" + String.valueOf(initial),

    41       "-XX:MaxTenuringThreshold=" + String.valueOf(max),

    42       "-version"

    43       );

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

    46     if (shouldfail) {

    47       output.shouldHaveExitValue(1);

    48     } else {

    49       output.shouldHaveExitValue(0);

    50     }

    51   }

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

    55     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

    56       // some value below the default value of InitialTenuringThreshold of 7

    57       "-XX:MaxTenuringThreshold=1",

    58       "-version"

    59       );

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

    62     output.shouldHaveExitValue(0);

    63     // successful tests

    64     runWithThresholds(0, 10, false);

    65     runWithThresholds(5, 5, false);

    66     // failing tests

    67     runWithThresholds(10, 0, true);

    68     runWithThresholds(9, 8, true);

    69     runWithThresholds(-1, 8, true);

    70     runWithThresholds(8, -1, true);

    71     runWithThresholds(8, 16, true);

    72     runWithThresholds(16, 8, true);

    73   }

    74 }

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

test/gc/arguments/TestInitialTenuringThreshold.java@3b4e1b5c13a0

test/gc/arguments/TestInitialTenuringThreshold.java