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:+UseTLAB -XX:MinTLABSize=3k -XX:TLABRefillWasteFraction=96 jdk.jfr.event.gc.configuration.TestGCTLABConfigurationEvent 45 */ 46 public class TestGCTLABConfigurationEvent { 47 public static void main(String[] args) throws Exception { 48 Recording recording = new Recording(); 49 recording.enable(EventNames.GCTLABConfiguration); 50 recording.start(); 51 recording.stop(); 52 List<RecordedEvent> events = Events.fromRecording(recording); 53 assertGreaterThanOrEqual(events.size(), 1, "Expected at least 1 event"); 54 GCTLABConfigurationEventVerifier verifier = new GCTLABConfigurationEventVerifier(events.get(0)); 55 verifier.verify(); 56 } 57 } 58 59 class GCTLABConfigurationEventVerifier extends EventVerifier { 60 public GCTLABConfigurationEventVerifier(RecordedEvent event) { 61 super(event); 62 } 63 64 @Override 65 public void verify() throws Exception { 66 verifyUsesTLABsIs(true); 67 verifyMinTLABSizeIs(kilobyte(3)); 68 verifyTLABRefillWasteLimitIs(96); 69 } 70 71 void verifyUsesTLABsIs(boolean expected) throws Exception { 72 verifyEquals("usesTLABs", expected); 73 } 74 75 void verifyMinTLABSizeIs(long expected) throws Exception { 76 verifyEquals("minTLABSize", expected); 77 } 78 79 void verifyTLABRefillWasteLimitIs(long expected) throws Exception { 80 verifyEquals("tlabRefillWasteLimit", expected); 81 } 82 83 private int kilobyte(int num) { 84 return 1024 * num; 85 } 86 }