Mercurial > hg > truffle
annotate test/gc/g1/TestSummarizeRSetStatsThreads.java @ 14323:d2954f85a366
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author | amurillo |
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date | Fri, 07 Feb 2014 09:41:36 -0800 |
parents | 7ec10139bf37 |
children | 05b726bce3e6 |
rev | line source |
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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 } |