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annotate test/gc/arguments/TestMaxNewSize.java @ 13060:8f07aa079343

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8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking 7057939: jmap shows MaxNewSize=4GB when Java is using parallel collector Summary: Major cleanup of the collectorpolicy classes Reviewed-by: tschatzl, jcoomes
author jwilhelm
date Fri, 01 Nov 2013 17:09:38 +0100
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13060
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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 * @test TestMaxNewSize
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26 * @key gc
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27 * @bug 7057939
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28 * @summary Make sure that MaxNewSize always has a useful value after argument
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29 * processing.
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30 * @library /testlibrary
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31 * @build TestMaxNewSize
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32 * @run main TestMaxNewSize -XX:+UseSerialGC
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33 * @run main TestMaxNewSize -XX:+UseParallelGC
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34 * @run main TestMaxNewSize -XX:+UseConcMarkSweepGC
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35 * @run main TestMaxNewSize -XX:+UseG1GC
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36 * @author thomas.schatzl@oracle.com, jesper.wilhelmsson@oracle.com
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37 */
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38
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39 import java.util.regex.Matcher;
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40 import java.util.regex.Pattern;
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41
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42 import java.math.BigInteger;
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43
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44 import java.util.ArrayList;
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45 import java.util.Arrays;
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46
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47 import com.oracle.java.testlibrary.*;
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48
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49 public class TestMaxNewSize {
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50
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51 private static void checkMaxNewSize(String[] flags, int heapsize) throws Exception {
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52 BigInteger actual = new BigInteger(getMaxNewSize(flags));
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53 System.out.println(actual);
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54 if (actual.compareTo(new BigInteger((new Long(heapsize)).toString())) == 1) {
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55 throw new RuntimeException("MaxNewSize value set to \"" + actual +
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56 "\", expected otherwise when running with the following flags: " + Arrays.asList(flags).toString());
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57 }
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58 }
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59
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60 private static void checkIncompatibleNewSize(String[] flags) throws Exception {
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61 ArrayList<String> finalargs = new ArrayList<String>();
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62 finalargs.addAll(Arrays.asList(flags));
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63 finalargs.add("-version");
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64
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65 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(finalargs.toArray(new String[0]));
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66 OutputAnalyzer output = new OutputAnalyzer(pb.start());
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67 output.shouldContain("Initial young gen size set larger than the maximum young gen size");
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68 }
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69
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70 private static boolean isRunningG1(String[] args) {
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71 for (int i = 0; i < args.length; i++) {
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72 if (args[i].contains("+UseG1GC")) {
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73 return true;
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74 }
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75 }
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76 return false;
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77 }
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78
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79 private static String getMaxNewSize(String[] flags) throws Exception {
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80 ArrayList<String> finalargs = new ArrayList<String>();
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81 finalargs.addAll(Arrays.asList(flags));
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82 if (isRunningG1(flags)) {
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83 finalargs.add("-XX:G1HeapRegionSize=1M");
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84 }
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85 finalargs.add("-XX:+PrintFlagsFinal");
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86 finalargs.add("-version");
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87
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88 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(finalargs.toArray(new String[0]));
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89 OutputAnalyzer output = new OutputAnalyzer(pb.start());
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90 output.shouldHaveExitValue(0);
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91 String stdout = output.getStdout();
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92 //System.out.println(stdout);
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93 return getFlagValue("MaxNewSize", stdout);
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94 }
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95
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96 private static String getFlagValue(String flag, String where) {
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97 Matcher m = Pattern.compile(flag + "\\s+:?=\\s+\\d+").matcher(where);
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98 if (!m.find()) {
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99 throw new RuntimeException("Could not find value for flag " + flag + " in output string");
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100 }
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101 String match = m.group();
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102 return match.substring(match.lastIndexOf(" ") + 1, match.length());
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103 }
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104
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105 public static void main(String args[]) throws Exception {
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106 String gcName = args[0];
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107 final int M32 = 32 * 1024 * 1024;
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108 final int M64 = 64 * 1024 * 1024;
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109 final int M96 = 96 * 1024 * 1024;
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110 final int M128 = 128 * 1024 * 1024;
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111 checkMaxNewSize(new String[] { gcName, "-Xmx128M" }, M128);
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112 checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:NewRatio=5" }, M128);
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113 checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:NewSize=32M" }, M128);
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114 checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:OldSize=96M" }, M128);
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115 checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:MaxNewSize=32M" }, M32);
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116 checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:NewSize=32M", "-XX:MaxNewSize=32M" }, M32);
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117 checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:NewRatio=6", "-XX:MaxNewSize=32M" }, M32);
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118 checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-Xms96M" }, M128);
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119 checkMaxNewSize(new String[] { gcName, "-Xmx96M", "-Xms96M" }, M96);
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120 checkMaxNewSize(new String[] { gcName, "-XX:NewSize=128M", "-XX:MaxNewSize=50M"}, M128);
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121 }
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122 }