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annotate test/gc/g1/TestGCLogMessages.java @ 17764:595c0f60d50d

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8029075: String deduplication in G1 Summary: Implementation of JEP 192, http://openjdk.java.net/jeps/192 Reviewed-by: brutisso, tschatzl, coleenp
author pliden
date Tue, 18 Mar 2014 19:07:22 +0100
parents eff02b5bd56c
children 570cb6369f17
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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 TestPrintGCDetails
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26 * @bug 8035406 8027295 8035398
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27 * @summary Ensure that the PrintGCDetails output for a minor GC with G1
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28 * includes the expected necessary messages.
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29 * @key gc
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30 * @library /testlibrary
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31 */
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32
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33 import com.oracle.java.testlibrary.ProcessTools;
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34 import com.oracle.java.testlibrary.OutputAnalyzer;
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35
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36 public class TestGCLogMessages {
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37 public static void main(String[] args) throws Exception {
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38 testNormalLogs();
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39 testWithToSpaceExhaustionLogs();
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40 }
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41
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42 private static void testNormalLogs() throws Exception {
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43
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44 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
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45 "-Xmx10M",
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46 GCTest.class.getName());
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47
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48 OutputAnalyzer output = new OutputAnalyzer(pb.start());
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49
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50 output.shouldNotContain("[Redirty Cards");
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51 output.shouldNotContain("[Code Root Purge");
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52 output.shouldNotContain("[String Dedup Fixup");
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53 output.shouldNotContain("[Young Free CSet");
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54 output.shouldNotContain("[Non-Young Free CSet");
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55 output.shouldHaveExitValue(0);
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56
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57 pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
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58 "-XX:+UseStringDeduplication",
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59 "-Xmx10M",
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60 "-XX:+PrintGCDetails",
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61 GCTest.class.getName());
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62
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63 output = new OutputAnalyzer(pb.start());
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64
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65 output.shouldContain("[Redirty Cards");
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66 output.shouldContain("[Code Root Purge");
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67 output.shouldContain("[String Dedup Fixup");
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68 output.shouldNotContain("[Young Free CSet");
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69 output.shouldNotContain("[Non-Young Free CSet");
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70 output.shouldHaveExitValue(0);
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71
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72 pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
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73 "-XX:+UseStringDeduplication",
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74 "-Xmx10M",
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75 "-XX:+PrintGCDetails",
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76 "-XX:+UnlockExperimentalVMOptions",
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77 "-XX:G1LogLevel=finest",
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78 GCTest.class.getName());
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79
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80 output = new OutputAnalyzer(pb.start());
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81
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82 output.shouldContain("[Redirty Cards");
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83 output.shouldContain("[Code Root Purge");
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84 output.shouldContain("[String Dedup Fixup");
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85 output.shouldContain("[Young Free CSet");
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86 output.shouldContain("[Non-Young Free CSet");
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87
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88 // also check evacuation failure messages once
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89 output.shouldNotContain("[Evacuation Failure");
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90 output.shouldNotContain("[Recalculate Used");
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91 output.shouldNotContain("[Remove Self Forwards");
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92 output.shouldNotContain("[Restore RemSet");
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93 output.shouldHaveExitValue(0);
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94 }
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95
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96 private static void testWithToSpaceExhaustionLogs() throws Exception {
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97 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
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98 "-Xmx10M",
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99 "-Xmn5M",
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100 "-XX:+PrintGCDetails",
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101 GCTestWithToSpaceExhaustion.class.getName());
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102
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103 OutputAnalyzer output = new OutputAnalyzer(pb.start());
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104 output.shouldContain("[Evacuation Failure");
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105 output.shouldNotContain("[Recalculate Used");
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106 output.shouldNotContain("[Remove Self Forwards");
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107 output.shouldNotContain("[Restore RemSet");
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108 output.shouldHaveExitValue(0);
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109
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110 pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
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111 "-Xmx10M",
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112 "-Xmn5M",
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113 "-XX:+PrintGCDetails",
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114 "-XX:+UnlockExperimentalVMOptions",
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115 "-XX:G1LogLevel=finest",
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116 GCTestWithToSpaceExhaustion.class.getName());
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117
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118 output = new OutputAnalyzer(pb.start());
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119 output.shouldContain("[Evacuation Failure");
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120 output.shouldContain("[Recalculate Used");
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121 output.shouldContain("[Remove Self Forwards");
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122 output.shouldContain("[Restore RemSet");
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123 output.shouldHaveExitValue(0);
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124 }
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125
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126 static class GCTest {
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127 private static byte[] garbage;
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128 public static void main(String [] args) {
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129 System.out.println("Creating garbage");
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130 // create 128MB of garbage. This should result in at least one GC
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131 for (int i = 0; i < 1024; i++) {
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132 garbage = new byte[128 * 1024];
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133 }
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134 System.out.println("Done");
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135 }
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136 }
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137
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138 static class GCTestWithToSpaceExhaustion {
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139 private static byte[] garbage;
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140 private static byte[] largeObject;
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141 public static void main(String [] args) {
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142 largeObject = new byte[5*1024*1024];
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143 System.out.println("Creating garbage");
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144 // create 128MB of garbage. This should result in at least one GC,
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145 // some of them with to-space exhaustion.
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146 for (int i = 0; i < 1024; i++) {
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147 garbage = new byte[128 * 1024];
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148 }
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149 System.out.println("Done");
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150 }
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151 }
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152 }