1 /* |
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2 * Copyright (c) 2013, 2018, 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. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package jdk.jfr.event.gc.heapsummary; |
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27 |
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28 import java.time.Duration; |
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29 import java.util.List; |
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30 |
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31 import jdk.jfr.Recording; |
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32 import jdk.jfr.consumer.RecordedEvent; |
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33 import jdk.test.lib.Asserts; |
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34 import jdk.test.lib.jfr.EventNames; |
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35 import jdk.test.lib.jfr.Events; |
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36 import jdk.test.lib.jfr.GCHelper; |
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37 |
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38 /** |
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39 * @test |
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40 * @key jfr |
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41 * @requires vm.hasJFR |
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42 * @requires (vm.gc == "ConcMarkSweep" | vm.gc == null) & !vm.graal.enabled |
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43 * & vm.opt.ExplicitGCInvokesConcurrent != false |
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44 * @library /test/lib /test/jdk |
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45 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:-UseFastUnorderedTimeStamps -XX:+UseConcMarkSweepGC -XX:+ExplicitGCInvokesConcurrent jdk.jfr.event.gc.heapsummary.TestHeapSummaryEventConcurrentCMS |
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46 */ |
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47 public class TestHeapSummaryEventConcurrentCMS { |
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48 |
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49 public static void main(String[] args) throws Exception { |
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50 Recording recording = new Recording(); |
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51 recording.enable(EventNames.GarbageCollection).withThreshold(Duration.ofMillis(0)); |
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52 recording.enable(EventNames.GCHeapSummary).withThreshold(Duration.ofMillis(0)); |
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53 |
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54 recording.start(); |
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55 // Need several GCs to ensure at least one heap summary event from concurrent CMS |
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56 GCHelper.callSystemGc(6, true); |
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57 recording.stop(); |
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58 |
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59 // Remove first and last GCs which can be incomplete |
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60 List<RecordedEvent> events = GCHelper.removeFirstAndLastGC(Events.fromRecording(recording)); |
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61 Asserts.assertFalse(events.isEmpty(), "No events found"); |
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62 for (RecordedEvent event : events) { |
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63 System.out.println("Event: " + event); |
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64 if (!isCmsGcEvent(event)) { |
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65 continue; |
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66 } |
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67 int gcId = Events.assertField(event, "gcId").getValue(); |
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68 verifyHeapSummary(events, gcId, "Before GC"); |
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69 verifyHeapSummary(events, gcId, "After GC"); |
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70 } |
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71 } |
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72 |
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73 private static boolean isCmsGcEvent(RecordedEvent event) { |
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74 if (!Events.isEventType(event, EventNames.GarbageCollection)) { |
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75 return false; |
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76 } |
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77 final String gcName = Events.assertField(event, "name").notEmpty().getValue(); |
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78 return "ConcurrentMarkSweep".equals(gcName); |
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79 } |
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80 |
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81 private static void verifyHeapSummary(List<RecordedEvent> events, int gcId, String when) { |
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82 for (RecordedEvent event : events) { |
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83 if (!Events.isEventType(event, EventNames.GCHeapSummary)) { |
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84 continue; |
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85 } |
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86 if (gcId == (int)Events.assertField(event, "gcId").getValue() && |
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87 when.equals(Events.assertField(event, "when").getValue())) { |
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88 System.out.printf("Found " + EventNames.GCHeapSummary + " for id=%d, when=%s%n", gcId, when); |
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89 return; |
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90 } |
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91 } |
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92 Asserts.fail(String.format("No " + EventNames.GCHeapSummary + " for id=%d, when=%s", gcId, when)); |
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93 } |
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94 |
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95 } |
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