Mercurial > hg > truffle
annotate test/gc/metaspace/TestMetaspacePerfCounters.java @ 13366:1480cfe97462
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author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 17 Dec 2013 18:14:02 +0100 |
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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 import java.util.List; |
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25 import java.util.ArrayList; |
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26 |
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27 import com.oracle.java.testlibrary.*; |
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28 import static com.oracle.java.testlibrary.Asserts.*; |
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29 |
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30 /* @test TestMetaspacePerfCounters |
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31 * @bug 8014659 |
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32 * @library /testlibrary |
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33 * @summary Tests that performance counters for metaspace and compressed class |
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34 * space exists and works. |
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35 * |
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36 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-UseCompressedOops -XX:-UseCompressedClassPointers -XX:+UsePerfData -XX:+UseSerialGC TestMetaspacePerfCounters |
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37 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-UseCompressedOops -XX:-UseCompressedClassPointers -XX:+UsePerfData -XX:+UseParallelGC -XX:+UseParallelOldGC TestMetaspacePerfCounters |
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38 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-UseCompressedOops -XX:-UseCompressedClassPointers -XX:+UsePerfData -XX:+UseG1GC TestMetaspacePerfCounters |
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39 * |
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40 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCompressedOops -XX:+UseCompressedClassPointers -XX:+UsePerfData -XX:+UseSerialGC TestMetaspacePerfCounters |
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41 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCompressedOops -XX:+UseCompressedClassPointers -XX:+UsePerfData -XX:+UseParallelGC -XX:+UseParallelOldGC TestMetaspacePerfCounters |
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42 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCompressedOops -XX:+UseCompressedClassPointers -XX:+UsePerfData -XX:+UseG1GC TestMetaspacePerfCounters |
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43 */ |
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44 public class TestMetaspacePerfCounters { |
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45 public static Class fooClass = null; |
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46 private static final String[] counterNames = {"minCapacity", "maxCapacity", "capacity", "used"}; |
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47 |
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48 public static void main(String[] args) throws Exception { |
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49 String metaspace = "sun.gc.metaspace"; |
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50 String ccs = "sun.gc.compressedclassspace"; |
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51 |
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52 checkPerfCounters(metaspace); |
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53 |
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54 if (isUsingCompressedClassPointers()) { |
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55 checkPerfCounters(ccs); |
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56 checkUsedIncreasesWhenLoadingClass(ccs); |
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57 } else { |
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58 checkEmptyPerfCounters(ccs); |
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59 checkUsedIncreasesWhenLoadingClass(metaspace); |
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60 } |
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61 } |
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62 |
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63 private static void checkPerfCounters(String ns) throws Exception { |
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64 long minCapacity = getMinCapacity(ns); |
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65 long maxCapacity = getMaxCapacity(ns); |
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66 long capacity = getCapacity(ns); |
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67 long used = getUsed(ns); |
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68 |
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69 assertGTE(minCapacity, 0L); |
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70 assertGTE(used, minCapacity); |
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71 assertGTE(capacity, used); |
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72 assertGTE(maxCapacity, capacity); |
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73 } |
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74 |
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75 private static void checkEmptyPerfCounters(String ns) throws Exception { |
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76 for (PerfCounter counter : countersInNamespace(ns)) { |
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77 String msg = "Expected " + counter.getName() + " to equal 0"; |
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78 assertEQ(counter.longValue(), 0L, msg); |
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79 } |
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80 } |
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81 |
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82 private static void checkUsedIncreasesWhenLoadingClass(String ns) throws Exception { |
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83 long before = getUsed(ns); |
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84 fooClass = compileAndLoad("Foo", "public class Foo { }"); |
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85 System.gc(); |
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86 long after = getUsed(ns); |
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87 |
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88 assertGT(after, before); |
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89 } |
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90 |
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91 private static List<PerfCounter> countersInNamespace(String ns) throws Exception { |
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92 List<PerfCounter> counters = new ArrayList<>(); |
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93 for (String name : counterNames) { |
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94 counters.add(PerfCounters.findByName(ns + "." + name)); |
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95 } |
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96 return counters; |
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97 } |
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98 |
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99 private static Class<?> compileAndLoad(String name, String source) throws Exception { |
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100 byte[] byteCode = InMemoryJavaCompiler.compile(name, source); |
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101 return ByteCodeLoader.load(name, byteCode); |
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102 } |
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103 |
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104 private static boolean isUsingCompressedClassPointers() { |
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105 return Platform.is64bit() && InputArguments.contains("-XX:+UseCompressedClassPointers"); |
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106 } |
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107 |
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108 private static long getMinCapacity(String ns) throws Exception { |
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109 return PerfCounters.findByName(ns + ".minCapacity").longValue(); |
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110 } |
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111 |
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112 private static long getCapacity(String ns) throws Exception { |
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113 return PerfCounters.findByName(ns + ".capacity").longValue(); |
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114 } |
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115 |
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116 private static long getMaxCapacity(String ns) throws Exception { |
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117 return PerfCounters.findByName(ns + ".maxCapacity").longValue(); |
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118 } |
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119 |
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120 private static long getUsed(String ns) throws Exception { |
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121 return PerfCounters.findByName(ns + ".used").longValue(); |
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122 } |
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123 } |