--- /dev/null 2017-11-09 09:38:01.297999907 +0100 +++ new/test/jdk/jdk/jfr/event/gc/configuration/TestGCSurvivorConfigurationEvent.java 2018-04-09 17:44:21.297831353 +0200 @@ -0,0 +1,75 @@ +/* + * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +package jdk.jfr.event.gc.configuration; + +import static jdk.test.lib.Asserts.assertGreaterThanOrEqual; + +import java.util.List; + +import jdk.jfr.Recording; +import jdk.jfr.consumer.RecordedEvent; +import jdk.test.lib.jfr.EventNames; +import jdk.test.lib.jfr.EventVerifier; +import jdk.test.lib.jfr.Events; + +/* + * @test + * @key jfr + * @requires vm.gc == "Parallel" | vm.gc == null + * @library /test/lib /test/jdk + * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:-UseFastUnorderedTimeStamps -XX:+UseParallelGC -XX:+UseParallelOldGC -XX:MaxTenuringThreshold=13 -XX:InitialTenuringThreshold=9 jdk.jfr.event.gc.configuration.TestGCSurvivorConfigurationEvent + */ +public class TestGCSurvivorConfigurationEvent { + public static void main(String[] args) throws Exception { + Recording recording = new Recording(); + recording.enable(EventNames.GCSurvivorConfiguration); + recording.start(); + recording.stop(); + List events = Events.fromRecording(recording); + assertGreaterThanOrEqual(events.size(), 1, "Expected at least 1 event"); + GCSurvivorConfigurationEventVerifier verifier = new GCSurvivorConfigurationEventVerifier(events.get(0)); + verifier.verify(); + } +} + +class GCSurvivorConfigurationEventVerifier extends EventVerifier { + public GCSurvivorConfigurationEventVerifier(RecordedEvent event) { + super(event); + } + + public void verify() throws Exception { + verifyMaxTenuringThresholdIs(13); + verifyInitialTenuringThresholdIs(9); + } + + private void verifyMaxTenuringThresholdIs(int expected) throws Exception { + verifyEquals("maxTenuringThreshold", (byte)expected); + } + + private void verifyInitialTenuringThresholdIs(int expected) throws Exception { + verifyEquals("initialTenuringThreshold", (byte)expected); + } +}