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annotate test/compiler/rtm/locking/TestRTMDeoptOnHighAbortRatio.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 on high abort ratio method will be recompiled
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29 * without rtm locking.
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30 * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary
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31 * @build TestRTMDeoptOnHighAbortRatio
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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 TestRTMDeoptOnHighAbortRatio
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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 on high abort ratio method wil be deoptimized with
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47 * <i>rtm_state_change</i> reason and after that RTM-based lock elision will not
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48 * be used for that method.
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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 TestRTMDeoptOnHighAbortRatio extends CommandLineOptionTest {
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54 private static final long ABORT_THRESHOLD
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55 = AbortProvoker.DEFAULT_ITERATIONS / 2L;
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56
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57 private TestRTMDeoptOnHighAbortRatio() {
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58 super(new AndPredicate(new SupportedCPU(), new SupportedVM()));
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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 verifyDeopt(false);
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64 verifyDeopt(true);
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65 }
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66
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67 private void verifyDeopt(boolean useStackLock) throws Throwable {
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68 AbortProvoker provoker = AbortType.XABORT.provoker();
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69 String logFileName = String.format("rtm_deopt_%s_stack_lock.xml",
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70 (useStackLock ? "use" : "no"));
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71
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72 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
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73 logFileName,
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74 provoker,
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75 "-XX:+UseRTMDeopt",
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76 CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks",
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77 useStackLock),
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78 "-XX:RTMRetryCount=0",
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79 CommandLineOptionTest.prepareNumericFlag("RTMAbortThreshold",
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80 TestRTMDeoptOnHighAbortRatio.ABORT_THRESHOLD),
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81 "-XX:RTMAbortRatio=100",
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82 "-XX:CompileThreshold=1",
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83 "-XX:RTMTotalCountIncrRate=1",
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84 "-XX:+PrintPreciseRTMLockingStatistics",
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85 AbortProvoker.class.getName(),
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86 AbortType.XABORT.toString(),
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87 Boolean.toString(!useStackLock)
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88 );
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89
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90 outputAnalyzer.shouldHaveExitValue(0);
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91
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92 int firedTraps = RTMTestBase.firedRTMStateChangeTraps(logFileName);
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93
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94 Asserts.assertEQ(firedTraps, 1, "Expected to get only one "
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95 + "deoptimization due to rtm state change");
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96
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97 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
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98 provoker.getMethodWithLockName(), outputAnalyzer.getOutput());
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99
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100 Asserts.assertEQ(statistics.size(), 1, "VM output should contain "
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101 + "exactly one RTM locking statistics entry for method "
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102 + provoker.getMethodWithLockName());
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103
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104 Asserts.assertEQ(statistics.get(0).getTotalLocks(),
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105 TestRTMDeoptOnHighAbortRatio.ABORT_THRESHOLD,
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106 "After AbortThreshold was reached, method should be"
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107 + " recompiled without rtm lock eliding.");
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108 }
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109
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110 public static void main(String args[]) throws Throwable {
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111 new TestRTMDeoptOnHighAbortRatio().test();
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112 }
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113 }
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114