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annotate test/gc/g1/TestSummarizeRSetStatsTools.java @ 19345:0d85421cb5d6

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Truffle/Instrumentation: add missing support method for InstrumentationPartialEvaluatinoTest
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Thu, 12 Feb 2015 17:25:50 -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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145 if (expectedCumulative != actualCumulative) {
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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:
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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