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.hasJFR 42 * @requires vm.gc == "Parallel" | vm.gc == null 43 * @library /test/lib /test/jdk 44 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:-UseFastUnorderedTimeStamps -XX:+UseParallelGC -XX:MaxTenuringThreshold=13 -XX:InitialTenuringThreshold=9 jdk.jfr.event.gc.configuration.TestGCSurvivorConfigurationEvent 45 */ 46 public class TestGCSurvivorConfigurationEvent { 47 public static void main(String[] args) throws Exception { 48 Recording recording = new Recording(); 49 recording.enable(EventNames.GCSurvivorConfiguration); 50 recording.start(); 51 recording.stop(); 52 List<RecordedEvent> events = Events.fromRecording(recording); 53 assertGreaterThanOrEqual(events.size(), 1, "Expected at least 1 event"); 54 GCSurvivorConfigurationEventVerifier verifier = new GCSurvivorConfigurationEventVerifier(events.get(0)); 55 verifier.verify(); 56 } 57 } 58 59 class GCSurvivorConfigurationEventVerifier extends EventVerifier { 60 public GCSurvivorConfigurationEventVerifier(RecordedEvent event) { 61 super(event); 62 } 63 64 public void verify() throws Exception { 65 verifyMaxTenuringThresholdIs(13); 66 verifyInitialTenuringThresholdIs(9); 67 } 68 69 private void verifyMaxTenuringThresholdIs(int expected) throws Exception { 70 verifyEquals("maxTenuringThreshold", (byte)expected); 71 } 72 73 private void verifyInitialTenuringThresholdIs(int expected) throws Exception { 74 verifyEquals("initialTenuringThreshold", (byte)expected); 75 } 76 }