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annotate test/compiler/rtm/locking/TestRTMSpinLoopCount.java @ 19382:37516af640ed

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Do not inline into methods that need a Graal replacement in the new partial evaluator.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Sun, 15 Feb 2015 16:44:52 +0100
parents ba8268c23fa2
children
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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 RTMSpinLoopCount affects time spent
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29 * between locking attempts.
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30 * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary
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31 * @build TestRTMSpinLoopCount
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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 TestRTMSpinLoopCount
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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
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45 /**
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46 * Test verifies that RTMSpinLoopCount increase time spent between retries
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47 * by comparing amount of retries done with different RTMSpinLoopCount's values.
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48 */
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49 public class TestRTMSpinLoopCount extends CommandLineOptionTest {
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50 private static final int LOCKING_TIME = 1000;
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51 private static final int RTM_RETRY_COUNT = 1000;
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52 private static final boolean INFLATE_MONITOR = true;
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53 private static final long MAX_ABORTS = RTM_RETRY_COUNT + 1L;
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54 private static final int[] SPIN_LOOP_COUNTS
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55 = new int[] { 0, 100, 1_000, 1_000_000, 10_000_000 };
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56
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57 private TestRTMSpinLoopCount() {
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58 super(new AndPredicate(new SupportedVM(), new SupportedCPU()));
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59 }
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60
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61 @Override
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62 protected void runTestCases() throws Throwable {
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63 long[] aborts = new long[TestRTMSpinLoopCount.SPIN_LOOP_COUNTS.length];
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64 for (int i = 0; i < TestRTMSpinLoopCount.SPIN_LOOP_COUNTS.length; i++) {
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65 aborts[i] = getAbortsCountOnLockBusy(
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66 TestRTMSpinLoopCount.SPIN_LOOP_COUNTS[i]);
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67 }
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68
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69 for (int i = 1; i < aborts.length; i++) {
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70 Asserts.assertLTE(aborts[i], aborts[i - 1], "Increased spin loop "
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71 + "count should not increase retries count.");
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72 }
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73 }
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74
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75 private long getAbortsCountOnLockBusy(int spinLoopCount) throws Throwable {
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76 CompilableTest test = new BusyLock();
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77
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78 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
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79 test,
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80 CommandLineOptionTest.prepareNumericFlag("RTMRetryCount",
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81 TestRTMSpinLoopCount.RTM_RETRY_COUNT),
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82 CommandLineOptionTest.prepareNumericFlag("RTMSpinLoopCount",
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83 spinLoopCount),
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84 "-XX:-UseRTMXendForLockBusy",
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85 "-XX:RTMTotalCountIncrRate=1",
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86 "-XX:+PrintPreciseRTMLockingStatistics",
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87 BusyLock.class.getName(),
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88 Boolean.toString(TestRTMSpinLoopCount.INFLATE_MONITOR),
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89 Integer.toString(TestRTMSpinLoopCount.LOCKING_TIME)
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90 );
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91
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92 outputAnalyzer.shouldHaveExitValue(0);
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93
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94 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
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95 test.getMethodWithLockName(), outputAnalyzer.getOutput());
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96
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97 Asserts.assertEQ(statistics.size(), 1,
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98 "VM output should contain exactly one entry for method "
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99 + test.getMethodWithLockName());
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100
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101 RTMLockingStatistics lock = statistics.get(0);
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102
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103 Asserts.assertLTE(lock.getTotalAborts(),
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104 TestRTMSpinLoopCount.MAX_ABORTS, String.format("Total aborts "
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105 + "count (%d) should be less or equal to %d",
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106 lock.getTotalAborts(),
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107 TestRTMSpinLoopCount.MAX_ABORTS));
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108
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109 return lock.getTotalAborts();
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110 }
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111
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112 public static void main(String args[]) throws Throwable {
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113 new TestRTMSpinLoopCount().test();
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114 }
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115 }