Mercurial > hg > truffle
annotate test/compiler/rtm/locking/TestRTMAbortRatio.java @ 21894:91b861398ad6
removed dependency from NFI to JVMCI
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 10 Jun 2015 16:10:26 +0200 |
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1 /* |
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2 * Copyright (c) 2014, 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 /** |
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26 * @test |
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27 * @bug 8031320 |
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28 * @summary Verify that RTMAbortRatio affects amount of aborts before |
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29 * deoptimization. |
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30 * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary |
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31 * @build TestRTMAbortRatio |
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32 * @run main ClassFileInstaller sun.hotspot.WhiteBox |
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33 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions |
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34 * -XX:+WhiteBoxAPI TestRTMAbortRatio |
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35 */ |
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36 |
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37 import java.util.List; |
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38 import com.oracle.java.testlibrary.*; |
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39 import com.oracle.java.testlibrary.cli.CommandLineOptionTest; |
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40 import com.oracle.java.testlibrary.cli.predicate.AndPredicate; |
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41 import rtm.*; |
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42 import rtm.predicate.SupportedCPU; |
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43 import rtm.predicate.SupportedVM; |
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44 import sun.misc.Unsafe; |
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45 |
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46 /** |
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47 * Test verifies that method will be deoptimized on high abort ratio |
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48 * as soon as abort ratio reaches RTMAbortRatio's value. |
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49 */ |
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50 public class TestRTMAbortRatio extends CommandLineOptionTest { |
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51 private TestRTMAbortRatio() { |
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52 super(new AndPredicate(new SupportedCPU(), new SupportedVM())); |
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53 } |
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54 |
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55 @Override |
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56 protected void runTestCases() throws Throwable { |
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57 verifyAbortRatio(0, false); |
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58 verifyAbortRatio(10, false); |
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59 verifyAbortRatio(50, false); |
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60 verifyAbortRatio(100, false); |
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61 |
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62 verifyAbortRatio(0, true); |
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63 verifyAbortRatio(10, true); |
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64 verifyAbortRatio(50, true); |
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65 verifyAbortRatio(100, true); |
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66 } |
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67 |
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68 private void verifyAbortRatio(int abortRatio, boolean useStackLock) |
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69 throws Throwable { |
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70 CompilableTest test = new Test(); |
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71 |
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72 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest( |
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73 test, |
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74 CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks", |
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75 useStackLock), |
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76 "-XX:+UseRTMDeopt", |
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77 "-XX:RTMTotalCountIncrRate=1", |
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78 "-XX:RTMAbortThreshold=0", |
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79 CommandLineOptionTest.prepareNumericFlag("RTMLockingThreshold", |
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80 10 * Test.TOTAL_ITERATIONS), |
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81 CommandLineOptionTest.prepareNumericFlag("RTMAbortRatio", |
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82 abortRatio), |
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83 "-XX:+PrintPreciseRTMLockingStatistics", |
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84 test.getClass().getName(), |
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85 Boolean.toString(!useStackLock)); |
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86 |
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87 outputAnalyzer.shouldHaveExitValue(0); |
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88 |
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89 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString( |
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90 test.getMethodWithLockName(), outputAnalyzer.getOutput()); |
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91 |
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92 Asserts.assertEQ(statistics.size(), 1, "VM output should contain " |
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93 + "exactly one RTM locking statistics entry."); |
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94 |
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95 RTMLockingStatistics lock = statistics.get(0); |
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96 int actualRatio; |
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97 |
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98 if (lock.getTotalAborts() == 1L) { |
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99 actualRatio = 0; |
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100 } else { |
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101 actualRatio = (int) (lock.getTotalLocks() |
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102 / (lock.getTotalAborts() - 1L)); |
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103 } |
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104 |
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105 Asserts.assertLTE(actualRatio, abortRatio, String.format( |
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106 "Actual abort ratio (%d) should lower or equal to " |
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107 + "specified (%d).", actualRatio, abortRatio)); |
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108 } |
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109 |
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110 /** |
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111 * Force abort after {@code Test.WARMUP_ITERATIONS} is done. |
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112 */ |
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113 public static class Test implements CompilableTest { |
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114 private static final int TOTAL_ITERATIONS = 10000; |
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115 private static final int WARMUP_ITERATIONS = 1000; |
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116 private static final Unsafe UNSAFE = Utils.getUnsafe(); |
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117 private final Object monitor = new Object(); |
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118 // Following field have to be static in order to avoid escape analysis. |
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119 @SuppressWarnings("UnsuedDeclaration") |
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120 private static int field = 0; |
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121 |
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122 @Override |
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123 public String getMethodWithLockName() { |
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124 return this.getClass().getName() + "::lock"; |
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125 } |
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126 |
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127 @Override |
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128 public String[] getMethodsToCompileNames() { |
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129 return new String[] { |
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130 getMethodWithLockName(), |
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131 Unsafe.class.getName() + "::addressSize" |
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132 }; |
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133 } |
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134 |
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135 public void lock(boolean abort) { |
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136 synchronized(monitor) { |
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137 if (abort) { |
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138 Test.UNSAFE.addressSize(); |
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139 } |
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140 } |
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141 } |
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142 |
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143 /** |
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144 * Usage: |
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145 * Test <inflate monitor> |
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146 */ |
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147 public static void main(String args[]) throws Throwable { |
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148 Asserts.assertGTE(args.length, 1, "One argument required."); |
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149 Test t = new Test(); |
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150 if (Boolean.valueOf(args[0])) { |
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151 AbortProvoker.inflateMonitor(t.monitor); |
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152 } |
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153 for (int i = 0; i < Test.TOTAL_ITERATIONS; i++) { |
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154 t.lock(i >= Test.WARMUP_ITERATIONS); |
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155 } |
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156 } |
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157 } |
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158 |
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159 public static void main(String args[]) throws Throwable { |
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160 new TestRTMAbortRatio().test(); |
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161 } |
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162 } |
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163 |