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annotate test/gc/g1/TestSummarizeRSetStatsThreads.java @ 12355:cefad50507d8

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Merge with hs25-b53
author Gilles Duboscq <duboscq@ssw.jku.at>
date Fri, 11 Oct 2013 10:38:03 +0200
parents 7ec10139bf37
children 05b726bce3e6
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1 /*
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2 * Copyright (c) 2013, 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 * @test TestSummarizeRSetStatsThreads
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26 * @bug 8025441
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27 * @summary Ensure that various values of worker threads/concurrent
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28 * refinement threads do not crash the VM.
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29 * @key gc
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30 * @library /testlibrary
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31 */
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32
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33 import java.util.regex.Matcher;
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34 import java.util.regex.Pattern;
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35
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36 import com.oracle.java.testlibrary.ProcessTools;
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37 import com.oracle.java.testlibrary.OutputAnalyzer;
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38
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39 public class TestSummarizeRSetStatsThreads {
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40
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41 private static void runTest(int refinementThreads, int workerThreads) throws Exception {
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42 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
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43 "-XX:+UnlockDiagnosticVMOptions",
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44 "-XX:+G1SummarizeRSetStats",
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45 "-XX:G1ConcRefinementThreads=" + refinementThreads,
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46 "-XX:ParallelGCThreads=" + workerThreads,
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47 "-version");
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48
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49 OutputAnalyzer output = new OutputAnalyzer(pb.start());
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50
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51 // check output to contain the string "Concurrent RS threads times (s)" followed by
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52 // the correct number of values in the next line.
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53
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54 // a zero in refinement thread numbers indicates that the value in ParallelGCThreads should be used.
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55 // Additionally use at least one thread.
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56 int expectedNumRefinementThreads = refinementThreads == 0 ? workerThreads : refinementThreads;
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57 expectedNumRefinementThreads = Math.max(1, expectedNumRefinementThreads);
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58 // create the pattern made up of n copies of a floating point number pattern
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59 String numberPattern = String.format("%0" + expectedNumRefinementThreads + "d", 0)
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60 .replace("0", "\\s+\\d+\\.\\d+");
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61 String pattern = "Concurrent RS threads times \\(s\\)$" + numberPattern + "$";
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62 Matcher m = Pattern.compile(pattern, Pattern.MULTILINE).matcher(output.getStdout());
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63
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64 if (!m.find()) {
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65 throw new Exception("Could not find correct output for concurrent RS threads times in stdout," +
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66 " should match the pattern \"" + pattern + "\", but stdout is \n" + output.getStdout());
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67 }
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68 output.shouldHaveExitValue(0);
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69 }
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70
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71 public static void main(String[] args) throws Exception {
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72 if (!TestSummarizeRSetStatsTools.testingG1GC()) {
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73 return;
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74 }
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75 // different valid combinations of number of refinement and gc worker threads
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76 runTest(0, 0);
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77 runTest(0, 5);
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78 runTest(5, 0);
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79 runTest(10, 10);
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80 runTest(1, 2);
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81 runTest(4, 3);
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82 }
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83 }