Mercurial > hg > truffle
annotate test/gc/arguments/TestHeapFreeRatio.java @ 20543:e7d0505c8a30
8059758: Footprint regressions with JDK-8038423
Summary: Changes in JDK-8038423 always initialize (zero out) virtual memory used for auxiliary data structures. This causes a footprint regression for G1 in startup benchmarks. This is because they do not touch that memory at all, so the operating system does not actually commit these pages. The fix is to, if the initialization value of the data structures matches the default value of just committed memory (=0), do not do anything.
Reviewed-by: jwilhelm, brutisso
author | tschatzl |
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date | Fri, 10 Oct 2014 15:51:58 +0200 |
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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 TestHeapFreeRatio |
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26 * @key gc |
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27 * @bug 8025661 |
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28 * @summary Test parsing of -Xminf and -Xmaxf |
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29 * @library /testlibrary |
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30 * @run main/othervm TestHeapFreeRatio |
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31 */ |
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32 |
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33 import com.oracle.java.testlibrary.*; |
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34 |
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35 public class TestHeapFreeRatio { |
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36 |
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37 enum Validation { |
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38 VALID, |
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39 MIN_INVALID, |
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40 MAX_INVALID, |
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41 COMBINATION_INVALID |
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42 } |
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43 |
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44 private static void testMinMaxFreeRatio(String min, String max, Validation type) throws Exception { |
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45 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( |
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46 "-Xminf" + min, |
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47 "-Xmaxf" + max, |
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48 "-version"); |
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49 OutputAnalyzer output = new OutputAnalyzer(pb.start()); |
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50 |
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51 switch (type) { |
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52 case VALID: |
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53 output.shouldNotContain("Error"); |
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54 output.shouldHaveExitValue(0); |
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55 break; |
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56 case MIN_INVALID: |
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57 output.shouldContain("Bad min heap free percentage size: -Xminf" + min); |
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58 output.shouldContain("Error"); |
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59 output.shouldHaveExitValue(1); |
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60 break; |
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61 case MAX_INVALID: |
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62 output.shouldContain("Bad max heap free percentage size: -Xmaxf" + max); |
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63 output.shouldContain("Error"); |
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64 output.shouldHaveExitValue(1); |
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65 break; |
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66 case COMBINATION_INVALID: |
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67 output.shouldContain("must be less than or equal to MaxHeapFreeRatio"); |
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68 output.shouldContain("Error"); |
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69 output.shouldHaveExitValue(1); |
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70 break; |
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71 default: |
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72 throw new IllegalStateException("Must specify expected validation type"); |
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73 } |
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74 |
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75 System.out.println(output.getOutput()); |
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76 } |
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77 |
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78 public static void main(String args[]) throws Exception { |
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79 testMinMaxFreeRatio( "0.1", "0.5", Validation.VALID); |
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80 testMinMaxFreeRatio( ".1", ".5", Validation.VALID); |
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81 testMinMaxFreeRatio( "0.5", "0.5", Validation.VALID); |
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82 |
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83 testMinMaxFreeRatio("-0.1", "0.5", Validation.MIN_INVALID); |
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84 testMinMaxFreeRatio( "1.1", "0.5", Validation.MIN_INVALID); |
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85 testMinMaxFreeRatio("=0.1", "0.5", Validation.MIN_INVALID); |
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86 testMinMaxFreeRatio("0.1f", "0.5", Validation.MIN_INVALID); |
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87 testMinMaxFreeRatio( |
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88 "INVALID", "0.5", Validation.MIN_INVALID); |
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89 testMinMaxFreeRatio( |
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90 "2147483647", "0.5", Validation.MIN_INVALID); |
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91 |
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92 testMinMaxFreeRatio( "0.1", "-0.5", Validation.MAX_INVALID); |
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93 testMinMaxFreeRatio( "0.1", "1.5", Validation.MAX_INVALID); |
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94 testMinMaxFreeRatio( "0.1", "0.5f", Validation.MAX_INVALID); |
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95 testMinMaxFreeRatio( "0.1", "=0.5", Validation.MAX_INVALID); |
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96 testMinMaxFreeRatio( |
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97 "0.1", "INVALID", Validation.MAX_INVALID); |
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98 testMinMaxFreeRatio( |
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99 "0.1", "2147483647", Validation.MAX_INVALID); |
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100 |
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101 testMinMaxFreeRatio( "0.5", "0.1", Validation.COMBINATION_INVALID); |
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102 testMinMaxFreeRatio( ".5", ".10", Validation.COMBINATION_INVALID); |
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103 testMinMaxFreeRatio("0.12","0.100", Validation.COMBINATION_INVALID); |
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104 } |
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105 } |