1 /*

     2  * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.

     3  * Copyright (c) 2019, Twitter, Inc.

     4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     5  *

     6  * This code is free software; you can redistribute it and/or modify it

     7  * under the terms of the GNU General Public License version 2 only, as

     8  * published by the Free Software Foundation.

     9  *

    10  * This code is distributed in the hope that it will be useful, but WITHOUT

    11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    13  * version 2 for more details (a copy is included in the LICENSE file that

    14  * accompanied this code).

    15  *

    16  * You should have received a copy of the GNU General Public License version

    17  * 2 along with this work; if not, write to the Free Software Foundation,

    18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    19  *

    20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    21  * or visit www.oracle.com if you need additional information or have any

    22  * questions.

    23  *

    24  */

    25 

    26 package gc.metaspace;

    27 

    28 import jdk.test.lib.process.ProcessTools;

    29 import jdk.test.lib.process.OutputAnalyzer;

    30 

    31 /* @test TestSizeTransitionsSerial

    32  * @key gc

    33  * @requires vm.gc.Serial

    34  * @summary Tests that the metaspace size transition logging is done correctly.

    35  * @library /test/lib

    36  * @run driver gc.metaspace.TestSizeTransitions false -XX:+UseSerialGC

    37  * @run driver gc.metaspace.TestSizeTransitions true  -XX:+UseSerialGC

    38  */

    39 

    40 /* @test TestSizeTransitionsParallel

    41  * @key gc

    42  * @requires vm.gc.Parallel

    43  * @summary Tests that the metaspace size transition logging is done correctly.

    44  * @library /test/lib

    45  * @run driver gc.metaspace.TestSizeTransitions false -XX:+UseParallelGC

    46  * @run driver gc.metaspace.TestSizeTransitions true  -XX:+UseParallelGC

    47  */

    48 

    49 /* @test TestSizeTransitionsG1

    50  * @key gc

    51  * @requires vm.gc.G1

    52  * @summary Tests that the metaspace size transition logging is done correctly.

    53  * @library /test/lib

    54  * @run driver gc.metaspace.TestSizeTransitions false -XX:+UseG1GC

    55  * @run driver gc.metaspace.TestSizeTransitions true  -XX:+UseG1GC

    56  */

    57 

    58 /* @test TestSizeTransitionsCMS

    59  * @key gc

    60  * @requires vm.gc.ConcMarkSweep

    61  * @summary Tests that the metaspace size transition logging is done correctly.

    62  * @library /test/lib

    63  * @run driver gc.metaspace.TestSizeTransitions false -XX:+UseConcMarkSweepGC

    64  * @run driver gc.metaspace.TestSizeTransitions true  -XX:+UseConcMarkSweepGC

    65  */

    66 

    67 public class TestSizeTransitions {

    68   public static class Run {

    69     public static void main(String... args) throws Exception {

    70       System.out.println("Run started.");

    71 

    72       // easiest way to generate a metaspace transition is to ask for a full GC

    73       System.gc();

    74 

    75       System.out.println("Run finished.");

    76     }

    77   }

    78 

    79   // matches the log tags

    80   //   e.g., [0.043s][info][gc]

    81   private static final String LOG_TAGS_REGEX = "(\\[.*\\])+ ";

    82 

    83   // matches a size transition

    84   //   e.g., 177K(4864K)->177K(4864K)

    85   private static final String SIZE_TRANSITION_REGEX = "\\d+K\\(\\d+K\\)->\\d+K\\(\\d+K\\)";

    86 

    87   // matches -coops metaspace size transitions

    88   private static final String NO_COOPS_REGEX =

    89     String.format("^%s.* Metaspace: %s$",

    90                   LOG_TAGS_REGEX,

    91                   SIZE_TRANSITION_REGEX);

    92 

    93   // matches +coops metaspace size transitions

    94   private static final String COOPS_REGEX =

    95     String.format("^%s.* Metaspace: %s NonClass: %s Class: %s$",

    96                   LOG_TAGS_REGEX,

    97                   SIZE_TRANSITION_REGEX,

    98                   SIZE_TRANSITION_REGEX,

    99                   SIZE_TRANSITION_REGEX);

   100 

   101   public static void main(String... args) throws Exception {

   102     // args: <use-coops> <gc-arg>

   103     if (args.length != 2) {

   104       throw new RuntimeException("wrong number of args: " + args.length);

   105     }

   106 

   107     final boolean useCoops = Boolean.parseBoolean(args[0]);

   108     final String gcArg = args[1];

   109     final String[] jvmArgs = {

   110       useCoops ? "-XX:+UseCompressedOops" : "-XX:-UseCompressedOops",

   111       gcArg,

   112       "-Xmx256m",

   113       "-Xlog:gc,gc+metaspace=info",

   114       TestSizeTransitions.Run.class.getName()

   115     };

   116 

   117     System.out.println("JVM args:");

   118     for (String a : jvmArgs) {

   119       System.out.println("  " + a);

   120     }

   121 

   122     final ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(jvmArgs);

   123     final OutputAnalyzer output = new OutputAnalyzer(pb.start());

   124     System.out.println(output.getStdout());

   125     output.shouldHaveExitValue(0);

   126 

   127     if (useCoops) {

   128       output.stdoutShouldMatch(COOPS_REGEX);

   129       output.stdoutShouldNotMatch(NO_COOPS_REGEX);

   130     } else {

   131       output.stdoutShouldMatch(NO_COOPS_REGEX);

   132       output.stdoutShouldNotMatch(COOPS_REGEX);

   133     }

   134   }

   135 }