1 /* 2 * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package jdk.jfr.event.gc.configuration; 27 28 import static jdk.test.lib.Asserts.assertGreaterThanOrEqual; 29 30 import java.util.List; 31 32 import jdk.jfr.Recording; 33 import jdk.jfr.consumer.RecordedEvent; 34 import jdk.test.lib.jfr.EventNames; 35 import jdk.test.lib.jfr.EventVerifier; 36 import jdk.test.lib.jfr.Events; 37 38 /* 39 * @test 40 * @key jfr 41 * @requires (vm.gc == "Parallel" | vm.gc == null) 42 * & vm.opt.ExplicitGCInvokesConcurrent != true 43 * @library /test/lib /test/jdk 44 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:-UseFastUnorderedTimeStamps -XX:+UseParallelGC -XX:+UseParallelOldGC -XX:ParallelGCThreads=3 -XX:ConcGCThreads=2 -XX:+UseDynamicNumberOfGCThreads -XX:-ExplicitGCInvokesConcurrent -XX:-DisableExplicitGC -XX:MaxGCPauseMillis=800 -XX:GCTimeRatio=19 jdk.jfr.event.gc.configuration.TestGCConfigurationEvent 45 */ 46 public class TestGCConfigurationEvent { 47 public static void main(String[] args) throws Exception { 48 Recording recording = new Recording(); 49 recording.enable(EventNames.GCConfiguration); 50 recording.start(); 51 recording.stop(); 52 List<RecordedEvent> events = Events.fromRecording(recording); 53 assertGreaterThanOrEqual(events.size(), 1, "Expected at least 1 event"); 54 GCConfigurationEventVerifier verifier = new GCConfigurationEventVerifier(events.get(0)); 55 verifier.verify(); 56 } 57 } 58 59 class GCConfigurationEventVerifier extends EventVerifier { 60 public GCConfigurationEventVerifier(RecordedEvent event) { 61 super(event); 62 } 63 64 @Override 65 public void verify() throws Exception { 66 verifyYoungGCIs("ParallelScavenge"); 67 verifyOldGCIs("ParallelOld"); 68 verifyParallelGCThreadsIs(3); 69 verifyConcurrentGCThreadsIs(2); 70 verifyUsesDynamicGCThreadsIs(true); 71 verifyIsExplicitGCConcurrentIs(false); 72 verifyIsExplicitGCDisabledIs(false); 73 verifyPauseTargetIs(800); 74 verifyGCTimeRatioIs(19); 75 } 76 77 private void verifyYoungGCIs(String expected) throws Exception { 78 verifyEquals("youngCollector", expected); 79 } 80 81 private void verifyOldGCIs(String expected) throws Exception { 82 verifyEquals("oldCollector", expected); 83 } 84 85 private void verifyParallelGCThreadsIs(int expected) throws Exception { 86 verifyEquals("parallelGCThreads", expected); 87 } 88 89 private void verifyConcurrentGCThreadsIs(int expected) throws Exception { 90 verifyEquals("concurrentGCThreads", expected); 91 } 92 93 private void verifyUsesDynamicGCThreadsIs(boolean expected) throws Exception { 94 verifyEquals("usesDynamicGCThreads", expected); 95 } 96 97 private void verifyIsExplicitGCConcurrentIs(boolean expected) throws Exception { 98 verifyEquals("isExplicitGCConcurrent", expected); 99 } 100 101 private void verifyIsExplicitGCDisabledIs(boolean expected) throws Exception { 102 verifyEquals("isExplicitGCDisabled", expected); 103 } 104 105 private void verifyPauseTargetIs(long expected) throws Exception { 106 verifyEquals("pauseTarget", expected); 107 } 108 109 private void verifyGCTimeRatioIs(int expected) throws Exception { 110 verifyEquals("gcTimeRatio", expected); 111 } 112 }