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test/hotspot/jtreg/gc/ergonomics/TestDynamicNumberOfGCThreads.java

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rev 52710 : Upstream/backport Shenandoah to JDK11u
   1 /*
   2  * Copyright (c) 2015, 2016, 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  */
  23 
  24 /*
  25  * @test TestDynamicNumberOfGCThreads
  26  * @bug 8017462
  27  * @summary Ensure that UseDynamicNumberOfGCThreads runs
  28  * @requires vm.gc=="null"
  29  * @key gc
  30  * @modules java.base/jdk.internal.misc
  31  * @library /test/lib



  32  */
  33 
  34 import jdk.test.lib.process.OutputAnalyzer;
  35 import jdk.test.lib.process.ProcessTools;

  36 
  37 public class TestDynamicNumberOfGCThreads {
  38   public static void main(String[] args) throws Exception {
  39 
  40     testDynamicNumberOfGCThreads("UseConcMarkSweepGC");
  41 
  42     testDynamicNumberOfGCThreads("UseG1GC");
  43 
  44     testDynamicNumberOfGCThreads("UseParallelGC");




  45   }
  46 
  47   private static void verifyDynamicNumberOfGCThreads(OutputAnalyzer output) {
  48     output.shouldHaveExitValue(0); // test should run succesfully
  49     output.shouldContain("new_active_workers");
  50   }
  51 
  52   private static void testDynamicNumberOfGCThreads(String gcFlag) throws Exception {
  53     // UseDynamicNumberOfGCThreads and TraceDynamicGCThreads enabled
  54     String[] baseArgs = {"-XX:+" + gcFlag, "-Xmx10M", "-XX:+UseDynamicNumberOfGCThreads", "-Xlog:gc+task=trace", GCTest.class.getName()};
  55 
  56     // Base test with gc and +UseDynamicNumberOfGCThreads:
  57     ProcessBuilder pb_enabled = ProcessTools.createJavaProcessBuilder(baseArgs);
  58     verifyDynamicNumberOfGCThreads(new OutputAnalyzer(pb_enabled.start()));
  59 
  60     // Ensure it also works on uniprocessors or if user specifies -XX:ParallelGCThreads=1:
  61     String[] extraArgs = {"-XX:+UnlockDiagnosticVMOptions", "-XX:+ForceDynamicNumberOfGCThreads", "-XX:ParallelGCThreads=1"};
  62     String[] finalArgs = new String[baseArgs.length + extraArgs.length];
  63     System.arraycopy(extraArgs, 0, finalArgs, 0,                extraArgs.length);
  64     System.arraycopy(baseArgs,  0, finalArgs, extraArgs.length, baseArgs.length);
  65     pb_enabled = ProcessTools.createJavaProcessBuilder(finalArgs);
  66     verifyDynamicNumberOfGCThreads(new OutputAnalyzer(pb_enabled.start()));
  67 
  68     // Turn on parallel reference processing
  69     String[] parRefProcArg = {"-XX:+ParallelRefProcEnabled", "-XX:-ShowMessageBoxOnError"};
  70     String[] parRefArgs = new String[baseArgs.length + parRefProcArg.length];
  71     System.arraycopy(parRefProcArg, 0, parRefArgs, 0,                parRefProcArg.length);
  72     System.arraycopy(baseArgs,  0, parRefArgs, parRefProcArg.length, baseArgs.length);
  73     pb_enabled = ProcessTools.createJavaProcessBuilder(parRefArgs);
  74     verifyDynamicNumberOfGCThreads(new OutputAnalyzer(pb_enabled.start()));
   1 /*
   2  * Copyright (c) 2015, 2018, 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  */
  23 
  24 /*
  25  * @test TestDynamicNumberOfGCThreads
  26  * @bug 8017462
  27  * @summary Ensure that UseDynamicNumberOfGCThreads runs
  28  * @requires vm.gc=="null"
  29  * @key gc
  30  * @modules java.base/jdk.internal.misc
  31  * @library /test/lib
  32  * @build sun.hotspot.WhiteBox
  33  * @run driver ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
  34  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI TestDynamicNumberOfGCThreads
  35  */
  36 
  37 import jdk.test.lib.process.OutputAnalyzer;
  38 import jdk.test.lib.process.ProcessTools;
  39 import sun.hotspot.gc.GC;
  40 
  41 public class TestDynamicNumberOfGCThreads {
  42   public static void main(String[] args) throws Exception {
  43 
  44     testDynamicNumberOfGCThreads("UseConcMarkSweepGC");
  45 
  46     testDynamicNumberOfGCThreads("UseG1GC");
  47 
  48     testDynamicNumberOfGCThreads("UseParallelGC");
  49 
  50     if (GC.Shenandoah.isSupported()) {
  51         testDynamicNumberOfGCThreads("UseShenandoahGC");
  52     }
  53   }
  54 
  55   private static void verifyDynamicNumberOfGCThreads(OutputAnalyzer output) {
  56     output.shouldHaveExitValue(0); // test should run succesfully
  57     output.shouldContain("new_active_workers");
  58   }
  59 
  60   private static void testDynamicNumberOfGCThreads(String gcFlag) throws Exception {
  61     // UseDynamicNumberOfGCThreads and TraceDynamicGCThreads enabled
  62     String[] baseArgs = {"-XX:+UnlockExperimentalVMOptions", "-XX:+" + gcFlag, "-Xmx10M", "-XX:+UseDynamicNumberOfGCThreads", "-Xlog:gc+task=trace", GCTest.class.getName()};
  63 
  64     // Base test with gc and +UseDynamicNumberOfGCThreads:
  65     ProcessBuilder pb_enabled = ProcessTools.createJavaProcessBuilder(baseArgs);
  66     verifyDynamicNumberOfGCThreads(new OutputAnalyzer(pb_enabled.start()));
  67 
  68     // Ensure it also works on uniprocessors or if user specifies -XX:ParallelGCThreads=1:
  69     String[] extraArgs = {"-XX:+UnlockDiagnosticVMOptions", "-XX:+ForceDynamicNumberOfGCThreads", "-XX:ParallelGCThreads=1"};
  70     String[] finalArgs = new String[baseArgs.length + extraArgs.length];
  71     System.arraycopy(extraArgs, 0, finalArgs, 0,                extraArgs.length);
  72     System.arraycopy(baseArgs,  0, finalArgs, extraArgs.length, baseArgs.length);
  73     pb_enabled = ProcessTools.createJavaProcessBuilder(finalArgs);
  74     verifyDynamicNumberOfGCThreads(new OutputAnalyzer(pb_enabled.start()));
  75 
  76     // Turn on parallel reference processing
  77     String[] parRefProcArg = {"-XX:+ParallelRefProcEnabled", "-XX:-ShowMessageBoxOnError"};
  78     String[] parRefArgs = new String[baseArgs.length + parRefProcArg.length];
  79     System.arraycopy(parRefProcArg, 0, parRefArgs, 0,                parRefProcArg.length);
  80     System.arraycopy(baseArgs,  0, parRefArgs, parRefProcArg.length, baseArgs.length);
  81     pb_enabled = ProcessTools.createJavaProcessBuilder(parRefArgs);
  82     verifyDynamicNumberOfGCThreads(new OutputAnalyzer(pb_enabled.start()));
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