Mercurial > hg > truffle
annotate test/gc/arguments/TestMaxNewSize.java @ 20215:983092f35ff7
8028710: G1 does not retire allocation buffers after reference processing work
Summary: G1 does not retire allocation buffers after reference processing work when -XX:+ParallelRefProcEnabled is enabled. This causes wrong calculation of PLAB sizes, as the amount of space wasted is not updated correctly.
Reviewed-by: brutisso
author | tschatzl |
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date | Mon, 21 Jul 2014 09:40:19 +0200 |
parents | 8f07aa079343 |
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rev | line source |
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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 } |