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annotate test/compiler/rtm/locking/TestRTMTotalCountIncrRate.java @ 17873:ba8268c23fa2

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8037860: Add tests to cover Intel RTM instructions support Reviewed-by: kvn, iignatyev Contributed-by: filipp.zhinkin@oracle.com
author iignatyev
date Fri, 11 Apr 2014 00:35:23 +0400
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17873
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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 RTMTotalCountIncrRate option affects
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29 * RTM locking statistics.
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30 * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary
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31 * @build TestRTMTotalCountIncrRate
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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 TestRTMTotalCountIncrRate
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35 */
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36
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37 import java.util.List;
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38
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39 import com.oracle.java.testlibrary.*;
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40 import com.oracle.java.testlibrary.cli.CommandLineOptionTest;
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41 import com.oracle.java.testlibrary.cli.predicate.AndPredicate;
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42 import rtm.*;
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43 import rtm.predicate.SupportedCPU;
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44 import rtm.predicate.SupportedVM;
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45
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46 /**
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47 * Test verifies that with RTMTotalCountIncrRate=1 RTM locking statistics
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48 * contains precise information abort attempted locks and that with other values
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49 * statistics contains information abort non-zero locking attempts.
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50 * Since assert done for RTMTotalCountIncrRate=1 is pretty strict, test uses
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51 * -XX:RTMRetryCount=0 to avoid issue with retriable aborts. For more details on
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52 * that issue see {@link TestUseRTMAfterLockInflation}.
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53 */
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54 public class TestRTMTotalCountIncrRate extends CommandLineOptionTest {
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55 private TestRTMTotalCountIncrRate() {
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56 super(new AndPredicate(new SupportedCPU(), new SupportedVM()));
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57 }
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58
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59 @Override
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60 protected void runTestCases() throws Throwable {
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61 verifyLocksCount(1, false);
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62 verifyLocksCount(64, false);
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63 verifyLocksCount(128, false);
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64 verifyLocksCount(1, true);
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65 verifyLocksCount(64, true);
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66 verifyLocksCount(128, true);
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67 }
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68
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69 private void verifyLocksCount(int incrRate, boolean useStackLock)
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70 throws Throwable{
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71 CompilableTest test = new Test();
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72
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73 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
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74 test,
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75 CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks",
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76 useStackLock),
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77 CommandLineOptionTest.prepareNumericFlag(
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78 "RTMTotalCountIncrRate", incrRate),
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79 "-XX:RTMRetryCount=0",
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80 "-XX:+PrintPreciseRTMLockingStatistics",
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81 Test.class.getName(),
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82 Boolean.toString(!useStackLock)
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83 );
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84
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85 outputAnalyzer.shouldHaveExitValue(0);
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86
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87 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
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88 test.getMethodWithLockName(), outputAnalyzer.getOutput());
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89
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90 Asserts.assertEQ(statistics.size(), 1, "VM output should contain "
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91 + "exactly one RTM locking statistics entry for method "
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92 + test.getMethodWithLockName());
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93
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94 RTMLockingStatistics lock = statistics.get(0);
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95 if (incrRate == 1) {
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96 Asserts.assertEQ(lock.getTotalLocks(), Test.TOTAL_ITERATIONS,
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97 "Total locks should be exactly the same as amount of "
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98 + "iterations.");
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99 } else {
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100 Asserts.assertGT(lock.getTotalLocks(), 0L, "RTM statistics "
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101 + "should contain information for at least on lock.");
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102 }
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103 }
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104
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105 public static class Test implements CompilableTest {
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106 private static final long TOTAL_ITERATIONS = 10000L;
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107 private final Object monitor = new Object();
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108 // Following field have to be static in order to avoid escape analysis.
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109 @SuppressWarnings("UnsuedDeclaration")
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110 private static int field = 0;
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111
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112 @Override
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113 public String getMethodWithLockName() {
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114 return this.getClass().getName() + "::lock";
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115 }
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116
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117 @Override
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118 public String[] getMethodsToCompileNames() {
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119 return new String[] {
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120 getMethodWithLockName()
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121 };
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122 }
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123
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124 public void lock() {
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125 synchronized(monitor) {
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126 Test.field++;
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127 }
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128 }
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129
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130 /**
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131 * Usage:
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132 * Test &lt;inflate monitor&gt;
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133 */
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134 public static void main(String args[]) throws Throwable {
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135 Asserts.assertGTE(args.length, 1, "One argument required.");
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136 Test test = new Test();
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137
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138 if (Boolean.valueOf(args[0])) {
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139 AbortProvoker.inflateMonitor(test.monitor);
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140 }
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141 for (long i = 0L; i < Test.TOTAL_ITERATIONS; i++) {
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142 test.lock();
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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 public static void main(String args[]) throws Throwable {
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148 new TestRTMTotalCountIncrRate().test();
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149 }
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150 }