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annotate test/gc/g1/TestGCLogMessages.java @ 20304:a22acf6d7598

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8048112: G1 Full GC needs to support the case when the very first region is not available Summary: Refactor preparation for compaction during Full GC so that it lazily initializes the first compaction point. This also avoids problems later when the first region may not be committed. Also reviewed by K. Barrett. Reviewed-by: brutisso
author tschatzl
date Mon, 21 Jul 2014 10:00:31 +0200
parents 6e1f418b39c3
children a3953c777565
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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 TestGCLogMessages
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26 * @bug 8035406 8027295 8035398 8019342
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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("[Parallel Redirty");
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52 output.shouldNotContain("[Redirtied Cards");
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53 output.shouldNotContain("[Code Root Purge");
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54 output.shouldNotContain("[String Dedup Fixup");
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55 output.shouldNotContain("[Young Free CSet");
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56 output.shouldNotContain("[Non-Young Free CSet");
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57 output.shouldHaveExitValue(0);
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58
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59 pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
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60 "-XX:+UseStringDeduplication",
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61 "-Xmx10M",
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62 "-XX:+PrintGCDetails",
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63 GCTest.class.getName());
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64
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65 output = new OutputAnalyzer(pb.start());
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66
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67 output.shouldContain("[Redirty Cards");
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68 output.shouldNotContain("[Parallel Redirty");
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69 output.shouldNotContain("[Redirtied Cards");
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70 output.shouldContain("[Code Root Purge");
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71 output.shouldContain("[String Dedup Fixup");
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72 output.shouldNotContain("[Young Free CSet");
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73 output.shouldNotContain("[Non-Young Free CSet");
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74 output.shouldHaveExitValue(0);
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75
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76 pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
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77 "-XX:+UseStringDeduplication",
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78 "-Xmx10M",
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79 "-XX:+PrintGCDetails",
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80 "-XX:+UnlockExperimentalVMOptions",
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81 "-XX:G1LogLevel=finest",
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82 GCTest.class.getName());
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83
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84 output = new OutputAnalyzer(pb.start());
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85
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86 output.shouldContain("[Redirty Cards");
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87 output.shouldContain("[Parallel Redirty");
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88 output.shouldContain("[Redirtied Cards");
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89 output.shouldContain("[Code Root Purge");
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90 output.shouldContain("[String Dedup Fixup");
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91 output.shouldContain("[Young Free CSet");
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92 output.shouldContain("[Non-Young Free CSet");
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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 }