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annotate test/compiler/rtm/locking/TestRTMDeoptOnLowAbortRatio.java @ 18781:941761f6b736

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Truffle-DSL: fixed thrown exception messages should provide more contextual information. (reported by Benoit Daloze)
author Christian Humer <christian.humer@gmail.com>
date Mon, 05 Jan 2015 20:23:22 +0100
parents ba8268c23fa2
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 on low abort ratio method will be recompiled.
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29 * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary
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30 * @build TestRTMDeoptOnLowAbortRatio
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31 * @run main ClassFileInstaller sun.hotspot.WhiteBox
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32 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
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33 * -XX:+WhiteBoxAPI TestRTMDeoptOnLowAbortRatio
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34 */
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35
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36 import java.util.List;
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37 import com.oracle.java.testlibrary.*;
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38 import com.oracle.java.testlibrary.cli.CommandLineOptionTest;
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39 import com.oracle.java.testlibrary.cli.predicate.AndPredicate;
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40 import rtm.*;
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41 import rtm.predicate.SupportedCPU;
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42 import rtm.predicate.SupportedVM;
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43 import sun.misc.Unsafe;
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44
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45 /**
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46 * Test verifies that low abort ratio method will be deoptimized with
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47 * <i>rtm_state_change</i> reason and will continue to use RTM-based lock
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48 * elision after that.
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49 * This test make asserts on total locks count done by compiled method,
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50 * so in order to avoid issue with retriable locks -XX:RTMRetryCount=0 is used.
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51 * For more details on that issue see {@link TestUseRTMAfterLockInflation}.
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52 */
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53 public class TestRTMDeoptOnLowAbortRatio extends CommandLineOptionTest {
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54 private static final long LOCKING_THRESHOLD = 100L;
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55
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56 private TestRTMDeoptOnLowAbortRatio() {
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57 super(new AndPredicate(new SupportedCPU(), new SupportedVM()));
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58 }
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59
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60 @Override
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61 protected void runTestCases() throws Throwable {
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62 verifyRTMDeopt(false);
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63 verifyRTMDeopt(true);
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64 }
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65
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66 private void verifyRTMDeopt(boolean useStackLock) throws Throwable {
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67 CompilableTest test = new Test();
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68 String logFileName = String.format("rtm_deopt_%s_stack_lock.xml",
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69 useStackLock ? "use" : "no");
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70
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71 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
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72 logFileName,
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73 test,
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74 "-XX:+UseRTMDeopt",
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75 CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks",
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76 useStackLock),
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77 CommandLineOptionTest.prepareNumericFlag("RTMLockingThreshold",
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78 TestRTMDeoptOnLowAbortRatio.LOCKING_THRESHOLD),
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79 "-XX:RTMAbortThreshold=1",
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80 "-XX:RTMAbortRatio=100",
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81 "-XX:CompileThreshold=1",
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82 "-XX:RTMRetryCount=0",
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83 "-XX:RTMTotalCountIncrRate=1",
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84 "-XX:+PrintPreciseRTMLockingStatistics",
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85 Test.class.getName(),
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86 Boolean.toString(!useStackLock)
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87 );
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88
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89 outputAnalyzer.shouldHaveExitValue(0);
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90
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91 int firedTraps = RTMTestBase.firedRTMStateChangeTraps(logFileName);
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92
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93 Asserts.assertEQ(firedTraps, 1,
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94 "Expected to get only one deoptimization due to rtm"
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95 + " state change");
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96
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97 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
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98 test.getMethodWithLockName(), outputAnalyzer.getOutput());
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99
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100 Asserts.assertEQ(statistics.size(), 2,
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101 "VM output should contain two RTM locking "
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102 + "statistics entries for method "
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103 + test.getMethodWithLockName());
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104
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105 RTMLockingStatistics statisticsBeforeDeopt = null;
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106
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107 for (RTMLockingStatistics s : statistics) {
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108 if (s.getTotalLocks()
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109 == TestRTMDeoptOnLowAbortRatio.LOCKING_THRESHOLD + 1L) {
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110 Asserts.assertNull(statisticsBeforeDeopt,
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111 "Only one abort was expected during test run");
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112 statisticsBeforeDeopt = s;
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113 }
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114 }
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115
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116 Asserts.assertNotNull(statisticsBeforeDeopt,
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117 "After LockThreshold was reached, method should be recompiled "
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118 + "with rtm lock eliding.");
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119 }
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120
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121 public static class Test implements CompilableTest {
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122 private static final Unsafe UNSAFE = Utils.getUnsafe();
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123 private final Object monitor = new Object();
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124
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125 @Override
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126 public String getMethodWithLockName() {
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127 return this.getClass().getName() + "::forceAbort";
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128 }
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129
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130 @Override
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131 public String[] getMethodsToCompileNames() {
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132 return new String[] {
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133 getMethodWithLockName(),
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134 sun.misc.Unsafe.class.getName() + "::addressSize"
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135 };
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136 }
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137
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138 public void forceAbort(boolean abort) {
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139 synchronized(monitor) {
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140 if (abort) {
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141 Test.UNSAFE.addressSize();
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142 }
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143 }
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144 }
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145
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146 /**
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147 * Usage:
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148 * Test &lt;inflate monitor&gt;
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149 */
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150 public static void main(String args[]) throws Throwable {
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151 Asserts.assertGTE(args.length, 1, "One argument required.");
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152 Test t = new Test();
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153
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154 if (Boolean.valueOf(args[0])) {
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155 AbortProvoker.inflateMonitor(t.monitor);
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156 }
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157 for (int i = 0; i < AbortProvoker.DEFAULT_ITERATIONS; i++) {
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158 t.forceAbort(
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159 i == TestRTMDeoptOnLowAbortRatio.LOCKING_THRESHOLD);
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160 }
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161 }
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162 }
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163
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164 public static void main(String args[]) throws Throwable {
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165 new TestRTMDeoptOnLowAbortRatio().test();
ba8268c23fa2 8037860: Add tests to cover Intel RTM instructions support
iignatyev
parents:
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166 }
ba8268c23fa2 8037860: Add tests to cover Intel RTM instructions support
iignatyev
parents:
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167 }