Mercurial > hg > truffle

annotate test/gc/g1/TestSummarizeRSetStatsTools.java @ 14094:3f27e57439ed

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Truffle/Instrumentation: significant rearrangement (including moved class) and extension of the Truffle Instrumentation Framework. New interfaces include DebugContext (which can be attached to the ExecutionContext), through which access is provided to possibly language-specific (a) node instrumentation, (b) debug services manager, (c) notification when programs halt, (d) display of language values, and (e) display of variable identifiers.
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Mon, 03 Feb 2014 20:58:23 -0800
parents c319b188c7b2
children 0abcece2ee27
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1 /*
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2 * Copyright (c) 2013, 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 * Common helpers for TestSummarizeRSetStats* tests
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26 */
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27
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28 import sun.management.ManagementFactoryHelper;
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29 import com.sun.management.HotSpotDiagnosticMXBean;
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30 import com.sun.management.VMOption;
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31
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32 import com.oracle.java.testlibrary.*;
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33 import java.util.regex.Matcher;
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34 import java.util.regex.Pattern;
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35 import java.lang.Thread;
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36 import java.util.ArrayList;
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37 import java.util.Arrays;
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38
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39 class VerifySummaryOutput {
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40 // 4M size, both are directly allocated into the old gen
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41 static Object[] largeObject1 = new Object[1024 * 1024];
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42 static Object[] largeObject2 = new Object[1024 * 1024];
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43
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44 static int[] temp;
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45
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46 public static void main(String[] args) {
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47 // create some cross-references between these objects
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48 for (int i = 0; i < largeObject1.length; i++) {
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49 largeObject1[i] = largeObject2;
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50 }
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51
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52 for (int i = 0; i < largeObject2.length; i++) {
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53 largeObject2[i] = largeObject1;
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54 }
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55
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56 int numGCs = Integer.parseInt(args[0]);
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57
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58 if (numGCs > 0) {
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59 // try to force a minor collection: the young gen is 4M, the
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60 // amount of data allocated below is roughly that (4*1024*1024 +
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61 // some header data)
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62 for (int i = 0; i < 1024 ; i++) {
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63 temp = new int[1024];
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64 }
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65 }
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66
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67 for (int i = 0; i < numGCs - 1; i++) {
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68 System.gc();
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69 }
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70 }
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71 }
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72
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73 public class TestSummarizeRSetStatsTools {
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74
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75 // the VM is currently run using G1GC, i.e. trying to test G1 functionality.
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76 public static boolean testingG1GC() {
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77 HotSpotDiagnosticMXBean diagnostic = ManagementFactoryHelper.getDiagnosticMXBean();
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78
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79 VMOption option = diagnostic.getVMOption("UseG1GC");
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80 if (option.getValue().equals("false")) {
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81 System.out.println("Skipping this test. It is only a G1 test.");
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82 return false;
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83 }
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84 return true;
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85 }
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86
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87 public static String runTest(String[] additionalArgs, int numGCs) throws Exception {
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88 ArrayList<String> finalargs = new ArrayList<String>();
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89 String[] defaultArgs = new String[] {
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90 "-XX:+UseG1GC",
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91 "-XX:+UseCompressedOops",
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92 "-Xmn4m",
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93 "-Xmx20m",
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94 "-XX:InitiatingHeapOccupancyPercent=100", // we don't want the additional GCs due to initial marking
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95 "-XX:+PrintGC",
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96 "-XX:+UnlockDiagnosticVMOptions",
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97 "-XX:G1HeapRegionSize=1M",
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98 };
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99
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100 finalargs.addAll(Arrays.asList(defaultArgs));
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101
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102 if (additionalArgs != null) {
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103 finalargs.addAll(Arrays.asList(additionalArgs));
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104 }
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105
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106 finalargs.add(VerifySummaryOutput.class.getName());
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107 finalargs.add(String.valueOf(numGCs));
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108
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109 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
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110 finalargs.toArray(new String[0]));
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111 OutputAnalyzer output = new OutputAnalyzer(pb.start());
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112
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113 output.shouldHaveExitValue(0);
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114
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115 String result = output.getStdout();
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116 return result;
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117 }
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118
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119 private static void checkCounts(int expected, int actual, String which) throws Exception {
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120 if (expected != actual) {
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121 throw new Exception("RSet summaries mention " + which + " regions an incorrect number of times. Expected " + expected + ", got " + actual);
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122 }
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123 }
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124
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125 public static void expectPerRegionRSetSummaries(String result, int expectedCumulative, int expectedPeriodic) throws Exception {
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126 expectRSetSummaries(result, expectedCumulative, expectedPeriodic);
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127 int actualYoung = result.split("Young regions").length - 1;
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128 int actualHumonguous = result.split("Humonguous regions").length - 1;
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129 int actualFree = result.split("Free regions").length - 1;
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130 int actualOther = result.split("Old regions").length - 1;
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131
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132 // the strings we check for above are printed four times per summary
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133 int expectedPerRegionTypeInfo = (expectedCumulative + expectedPeriodic) * 4;
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134
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135 checkCounts(expectedPerRegionTypeInfo, actualYoung, "Young");
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136 checkCounts(expectedPerRegionTypeInfo, actualHumonguous, "Humonguous");
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137 checkCounts(expectedPerRegionTypeInfo, actualFree, "Free");
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138 checkCounts(expectedPerRegionTypeInfo, actualOther, "Old");
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139 }
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140
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141 public static void expectRSetSummaries(String result, int expectedCumulative, int expectedPeriodic) throws Exception {
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142 int actualTotal = result.split("concurrent refinement").length - 1;
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143 int actualCumulative = result.split("Cumulative RS summary").length - 1;
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144
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parents:
diff changeset
145 if (expectedCumulative != actualCumulative) {
c319b188c7b2 8014078: G1: improve remembered set summary information by providing per region type information
tschatzl
parents:
diff changeset
146 throw new Exception("Incorrect amount of RSet summaries at the end. Expected " + expectedCumulative + ", got " + actualCumulative);
c319b188c7b2 8014078: G1: improve remembered set summary information by providing per region type information
tschatzl
parents:
diff changeset
147 }
c319b188c7b2 8014078: G1: improve remembered set summary information by providing per region type information
tschatzl
parents:
diff changeset
148
c319b188c7b2 8014078: G1: improve remembered set summary information by providing per region type information
tschatzl
parents:
diff changeset
149 if (expectedPeriodic != (actualTotal - actualCumulative)) {
c319b188c7b2 8014078: G1: improve remembered set summary information by providing per region type information
tschatzl
parents:
diff changeset
150 throw new Exception("Incorrect amount of per-period RSet summaries at the end. Expected " + expectedPeriodic + ", got " + (actualTotal - actualCumulative));
c319b188c7b2 8014078: G1: improve remembered set summary information by providing per region type information
tschatzl
parents:
diff changeset
151 }
c319b188c7b2 8014078: G1: improve remembered set summary information by providing per region type information
tschatzl
parents:
diff changeset
152 }
c319b188c7b2 8014078: G1: improve remembered set summary information by providing per region type information
tschatzl
parents:
diff changeset
153 }
c319b188c7b2 8014078: G1: improve remembered set summary information by providing per region type information
tschatzl
parents:
diff changeset
154