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annotate test/compiler/rtm/locking/TestRTMAbortThreshold.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 RTMAbortThreshold option affects
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29 * amount of aborts after which abort ratio is calculated.
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30 * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary
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31 * @build TestRTMAbortThreshold
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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 TestRTMAbortThreshold
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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 RTMAbortThreshold option actually affects how soon
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47 * method will be deoptimized on high abort ratio.
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48 */
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49 public class TestRTMAbortThreshold extends CommandLineOptionTest {
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50 private TestRTMAbortThreshold() {
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51 super(new AndPredicate(new SupportedCPU(), new SupportedVM()));
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52 }
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53
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54 @Override
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55 protected void runTestCases() throws Throwable {
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56 verifyAbortThreshold(false, 1);
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57 verifyAbortThreshold(false, 10);
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58 verifyAbortThreshold(false, 1000);
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59
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60 verifyAbortThreshold(true, 1);
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61 verifyAbortThreshold(true, 10);
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62 verifyAbortThreshold(true, 1000);
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63 }
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64
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65 private void verifyAbortThreshold(boolean useStackLock,
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66 long abortThreshold) throws Throwable {
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67 AbortProvoker provoker = AbortType.XABORT.provoker();
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68
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69 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
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70 provoker,
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71 "-XX:+UseRTMDeopt",
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72 "-XX:RTMAbortRatio=0",
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73 CommandLineOptionTest.prepareNumericFlag("RTMAbortThreshold",
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74 abortThreshold),
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75 CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks",
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76 useStackLock),
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77 "-XX:RTMTotalCountIncrRate=1",
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78 "-XX:+PrintPreciseRTMLockingStatistics",
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79 AbortProvoker.class.getName(),
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80 AbortType.XABORT.toString(),
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81 Boolean.toString(!useStackLock));
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82
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83 outputAnalyzer.shouldHaveExitValue(0);
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84
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85 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
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86 provoker.getMethodWithLockName(), outputAnalyzer.getOutput());
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87
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88 Asserts.assertEQ(statistics.size(), 1, "VM output should contain "
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89 + "exactly one RTM locking statistics entry for method "
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90 + provoker.getMethodWithLockName());
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91
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92 Asserts.assertEQ(statistics.get(0).getTotalLocks(), abortThreshold,
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93 String.format("Expected that method with rtm lock elision was"
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94 + " deoptimized after %d lock attempts",
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95 abortThreshold));
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96 }
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97
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98 public static void main(String args[]) throws Throwable {
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99 new TestRTMAbortThreshold().test();
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100 }
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101 }
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102