Mercurial > hg > truffle
annotate test/gc/class_unloading/TestCMSClassUnloadingEnabledHWM.java @ 21794:483b357016a6
Use export target explicitly in mx_graal.py when building JDK (JBS:GRAAL-52)
author | Stefan Anzinger <stefan.anzinger@oracle.com> |
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date | Mon, 08 Jun 2015 20:30:39 +0200 |
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1 /* |
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 |
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24 /* |
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25 * @test |
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26 * @key gc |
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27 * @bug 8049831 |
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28 * @library /testlibrary /testlibrary/whitebox |
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29 * @build TestCMSClassUnloadingEnabledHWM |
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30 * @run main ClassFileInstaller sun.hotspot.WhiteBox |
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31 * @run driver TestCMSClassUnloadingEnabledHWM |
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32 * @summary Test that -XX:-CMSClassUnloadingEnabled will trigger a Full GC when more than MetaspaceSize metadata is allocated. |
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33 */ |
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34 |
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35 import com.oracle.java.testlibrary.OutputAnalyzer; |
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36 import com.oracle.java.testlibrary.ProcessTools; |
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37 import java.lang.management.GarbageCollectorMXBean; |
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38 import java.lang.management.ManagementFactory; |
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39 import java.util.ArrayList; |
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40 import java.util.Arrays; |
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41 import sun.hotspot.WhiteBox; |
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42 |
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43 public class TestCMSClassUnloadingEnabledHWM { |
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44 private static long MetaspaceSize = 32 * 1024 * 1024; |
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45 private static long YoungGenSize = 32 * 1024 * 1024; |
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46 |
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47 private static OutputAnalyzer run(boolean enableUnloading) throws Exception { |
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48 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( |
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49 "-Xbootclasspath/a:.", |
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50 "-XX:+UnlockDiagnosticVMOptions", |
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51 "-XX:+WhiteBoxAPI", |
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52 "-Xmx128m", |
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53 "-XX:CMSMaxAbortablePrecleanTime=1", |
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54 "-XX:CMSWaitDuration=50", |
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55 "-XX:MetaspaceSize=" + MetaspaceSize, |
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56 "-Xmn" + YoungGenSize, |
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57 "-XX:+UseConcMarkSweepGC", |
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58 "-XX:" + (enableUnloading ? "+" : "-") + "CMSClassUnloadingEnabled", |
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59 "-XX:+PrintHeapAtGC", |
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60 "-XX:+PrintGCDetails", |
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61 "-XX:+PrintGCTimeStamps", |
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62 TestCMSClassUnloadingEnabledHWM.AllocateBeyondMetaspaceSize.class.getName(), |
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63 "" + MetaspaceSize); |
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64 return new OutputAnalyzer(pb.start()); |
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65 } |
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66 |
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67 public static OutputAnalyzer runWithCMSClassUnloading() throws Exception { |
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68 return run(true); |
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69 } |
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70 |
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71 public static OutputAnalyzer runWithoutCMSClassUnloading() throws Exception { |
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72 return run(false); |
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73 } |
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74 |
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75 public static void testWithoutCMSClassUnloading() throws Exception { |
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76 // -XX:-CMSClassUnloadingEnabled is used, so we expect a full GC instead of a concurrent cycle. |
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77 OutputAnalyzer out = runWithoutCMSClassUnloading(); |
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78 |
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79 out.shouldMatch(".*Full GC.*"); |
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80 out.shouldNotMatch(".*CMS Initial Mark.*"); |
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81 } |
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82 |
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83 public static void testWithCMSClassUnloading() throws Exception { |
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84 // -XX:+CMSClassUnloadingEnabled is used, so we expect a concurrent cycle instead of a full GC. |
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85 OutputAnalyzer out = runWithCMSClassUnloading(); |
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86 |
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87 out.shouldMatch(".*CMS Initial Mark.*"); |
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88 out.shouldNotMatch(".*Full GC.*"); |
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89 } |
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90 |
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91 public static void main(String args[]) throws Exception { |
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92 testWithCMSClassUnloading(); |
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93 testWithoutCMSClassUnloading(); |
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94 } |
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95 |
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96 public static class AllocateBeyondMetaspaceSize { |
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97 public static void main(String [] args) throws Exception { |
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98 if (args.length != 1) { |
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99 throw new IllegalArgumentException("Usage: <MetaspaceSize>"); |
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100 } |
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101 |
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102 WhiteBox wb = WhiteBox.getWhiteBox(); |
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103 |
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104 // Allocate past the MetaspaceSize limit. |
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105 long metaspaceSize = Long.parseLong(args[0]); |
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106 long allocationBeyondMetaspaceSize = metaspaceSize * 2; |
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107 long metaspace = wb.allocateMetaspace(null, allocationBeyondMetaspaceSize); |
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108 |
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109 // Wait for at least one GC to occur. The caller will parse the log files produced. |
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110 GarbageCollectorMXBean cmsGCBean = getCMSGCBean(); |
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111 while (cmsGCBean.getCollectionCount() == 0) { |
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112 Thread.sleep(100); |
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113 } |
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114 |
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115 wb.freeMetaspace(null, metaspace, metaspace); |
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116 } |
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117 |
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118 private static GarbageCollectorMXBean getCMSGCBean() { |
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119 for (GarbageCollectorMXBean gcBean : ManagementFactory.getGarbageCollectorMXBeans()) { |
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120 if (gcBean.getObjectName().toString().equals("java.lang:type=GarbageCollector,name=ConcurrentMarkSweep")) { |
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8058475: TestCMSClassUnloadingEnabledHWM.java fails with '.*CMS Initial Mark.*' missing from stdout/stderr
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121 return gcBean; |
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8058475: TestCMSClassUnloadingEnabledHWM.java fails with '.*CMS Initial Mark.*' missing from stdout/stderr
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122 } |
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8058475: TestCMSClassUnloadingEnabledHWM.java fails with '.*CMS Initial Mark.*' missing from stdout/stderr
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123 } |
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8058475: TestCMSClassUnloadingEnabledHWM.java fails with '.*CMS Initial Mark.*' missing from stdout/stderr
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124 return null; |
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8058475: TestCMSClassUnloadingEnabledHWM.java fails with '.*CMS Initial Mark.*' missing from stdout/stderr
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125 } |
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126 } |
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8048269: Add flag to turn off class unloading after G1 concurrent mark
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127 } |
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128 |