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plidenpliden
committedApr 1, 2020
8241881: ZGC: Add tests for JFR events
Reviewed-by: stefank, eosterlund, egahlin
1 parent f1ef83b commit 6c9d650

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‎test/jdk/jdk/jfr/event/gc/detailed/TestZAllocationStallEvent.java

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/*
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* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package jdk.jfr.event.gc.detailed;
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import java.util.List;
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import static gc.testlibrary.Allocation.blackHole;
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import jdk.jfr.Recording;
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import jdk.jfr.consumer.RecordedEvent;
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import jdk.test.lib.jfr.EventNames;
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import jdk.test.lib.jfr.Events;
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/**
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* @test TestZAllocationStallEvent
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* @requires vm.hasJFR & vm.gc.Z
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* @key jfr
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* @library /test/lib /test/jdk /test/hotspot/jtreg
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* @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseZGC -Xmx32M jdk.jfr.event.gc.detailed.TestZAllocationStallEvent
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*/
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public class TestZAllocationStallEvent {
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public static void main(String[] args) throws Exception {
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try (Recording recording = new Recording()) {
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// Activate the event we are interested in and start recording
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recording.enable(EventNames.ZAllocationStall);
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recording.start();
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// Allocate many large objects quickly, to outrun the GC
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for (int i = 0; i < 100; i++) {
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blackHole(new byte[16 * 1024 * 1024]);
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}
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recording.stop();
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// Verify recording
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List<RecordedEvent> events = Events.fromRecording(recording);
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System.out.println("Events: " + events.size());
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Events.hasEvents(events);
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for (RecordedEvent event : Events.fromRecording(recording)) {
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Events.assertField(event, "size").atLeast(2L * 1024 * 1024);
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}
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}
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}
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}

‎test/jdk/jdk/jfr/event/gc/detailed/TestZPageAllocationEvent.java

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/*
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* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package jdk.jfr.event.gc.detailed;
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import java.util.List;
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import static gc.testlibrary.Allocation.blackHole;
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import jdk.jfr.Recording;
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import jdk.jfr.consumer.RecordedEvent;
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import jdk.test.lib.jfr.EventNames;
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import jdk.test.lib.jfr.Events;
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/**
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* @test TestZPageAllocationEvent
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* @requires vm.hasJFR & vm.gc.Z
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* @key jfr
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* @library /test/lib /test/jdk /test/hotspot/jtreg
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* @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseZGC -Xmx32M jdk.jfr.event.gc.detailed.TestZPageAllocationEvent
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*/
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public class TestZPageAllocationEvent {
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public static void main(String[] args) throws Exception {
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try (Recording recording = new Recording()) {
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// Activate the event we are interested in and start recording
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recording.enable(EventNames.ZPageAllocation);
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recording.start();
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// Allocate objects, to provoke page allocations
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for (int i = 0; i < 100; i++) {
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blackHole(new byte[256 * 1024]);
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}
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recording.stop();
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// Verify recording
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List<RecordedEvent> events = Events.fromRecording(recording);
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System.out.println("Events: " + events.size());
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Events.hasEvents(events);
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for (RecordedEvent event : Events.fromRecording(recording)) {
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Events.assertField(event, "size").atLeast(2L * 1024 * 1024);
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}
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}
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}
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}

‎test/jdk/jdk/jfr/event/gc/detailed/TestZPageCacheFlushEvent.java

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/*
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* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package jdk.jfr.event.gc.detailed;
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import java.util.List;
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import static gc.testlibrary.Allocation.blackHole;
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import jdk.jfr.Recording;
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import jdk.jfr.consumer.RecordedEvent;
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import jdk.test.lib.jfr.EventNames;
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import jdk.test.lib.jfr.Events;
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/**
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* @test TestZPageCacheFlushEvent
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* @requires vm.hasJFR & vm.gc.Z
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* @key jfr
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* @library /test/lib /test/jdk /test/hotspot/jtreg
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* @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseZGC -Xmx32M jdk.jfr.event.gc.detailed.TestZPageCacheFlushEvent
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*/
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public class TestZPageCacheFlushEvent {
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public static void main(String[] args) throws Exception {
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try (Recording recording = new Recording()) {
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// Activate the event we are interested in and start recording
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recording.enable(EventNames.ZPageCacheFlush);
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recording.start();
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// Allocate non-large objects, to fill page cache with non-large pages
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for (int i = 0; i < 128; i++) {
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blackHole(new byte[256 * 1024]);
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}
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// Allocate large objects, to provoke page cache flushing
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for (int i = 0; i < 10; i++) {
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blackHole(new byte[7 * 1024 * 1024]);
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}
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recording.stop();
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// Verify recording
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List<RecordedEvent> events = Events.fromRecording(recording);
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System.out.println("Events: " + events.size());
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Events.hasEvents(events);
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}
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}
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}

‎test/jdk/jdk/jfr/event/gc/detailed/TestZRelocationSetEvent.java

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/*
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* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* 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
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* 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).
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*
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* 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.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
24+
*/
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package jdk.jfr.event.gc.detailed;
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import java.util.List;
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import static gc.testlibrary.Allocation.blackHole;
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import jdk.jfr.Recording;
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import jdk.jfr.consumer.RecordedEvent;
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import jdk.test.lib.jfr.EventNames;
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import jdk.test.lib.jfr.Events;
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/**
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* @test TestZRelocationSetEvent
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* @requires vm.hasJFR & vm.gc.Z
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* @key jfr
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* @library /test/lib /test/jdk /test/hotspot/jtreg
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* @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseZGC -Xmx32M jdk.jfr.event.gc.detailed.TestZRelocationSetEvent
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*/
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public class TestZRelocationSetEvent {
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public static void main(String[] args) throws Exception {
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try (Recording recording = new Recording()) {
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// Activate the event we are interested in and start recording
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recording.enable(EventNames.ZRelocationSet);
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recording.start();
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// Collect
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System.gc();
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recording.stop();
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// Verify recording
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List<RecordedEvent> events = Events.fromRecording(recording);
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System.out.println("Events: " + events.size());
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Events.hasEvents(events);
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}
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}
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}

‎test/jdk/jdk/jfr/event/gc/detailed/TestZRelocationSetGroupEvent.java

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/*
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* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
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* 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+
*/
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package jdk.jfr.event.gc.detailed;
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import java.util.List;
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import static gc.testlibrary.Allocation.blackHole;
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import jdk.jfr.Recording;
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import jdk.jfr.consumer.RecordedEvent;
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import jdk.test.lib.jfr.EventNames;
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import jdk.test.lib.jfr.Events;
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/**
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* @test TestZRelocationSetGroupEvent
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* @requires vm.hasJFR & vm.gc.Z
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* @key jfr
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* @library /test/lib /test/jdk /test/hotspot/jtreg
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* @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseZGC -Xmx32M jdk.jfr.event.gc.detailed.TestZRelocationSetGroupEvent
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*/
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public class TestZRelocationSetGroupEvent {
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public static void main(String[] args) throws Exception {
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try (Recording recording = new Recording()) {
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// Activate the event we are interested in and start recording
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recording.enable(EventNames.ZRelocationSetGroup);
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recording.start();
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// Collect
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System.gc();
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recording.stop();
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// Verify recording
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List<RecordedEvent> events = Events.fromRecording(recording);
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System.out.println("Events: " + events.size());
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Events.hasEvents(events);
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}
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}
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}

‎test/jdk/jdk/jfr/event/gc/detailed/TestZUncommitEvent.java

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/*
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* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
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* 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.detailed;
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import java.util.List;
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import static gc.testlibrary.Allocation.blackHole;
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import jdk.jfr.Recording;
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import jdk.jfr.consumer.RecordedEvent;
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import jdk.test.lib.jfr.EventNames;
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import jdk.test.lib.jfr.Events;
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/**
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* @test TestZUncommitEvent
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* @requires vm.hasJFR & vm.gc.Z
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* @key jfr
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* @library /test/lib /test/jdk /test/hotspot/jtreg
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* @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseZGC -Xms32M -Xmx128M -Xlog:gc,gc+heap -XX:+ZUncommit -XX:ZUncommitDelay=1 jdk.jfr.event.gc.detailed.TestZUncommitEvent
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*/
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public class TestZUncommitEvent {
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public static void main(String[] args) throws Exception {
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try (Recording recording = new Recording()) {
47+
// Activate the event we are interested in and start recording
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recording.enable(EventNames.ZUncommit);
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recording.start();
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// Allocate a large object, to force heap usage above min heap size
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blackHole(new byte[32 * 1024 * 1024]);
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// Collect
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System.gc();
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// Wait for uncommit to happen
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Thread.sleep(10 * 1000);
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recording.stop();
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// Verify recording
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List<RecordedEvent> events = Events.fromRecording(recording);
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System.out.println("Events: " + events.size());
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Events.hasEvents(events);
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for (RecordedEvent event : Events.fromRecording(recording)) {
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System.out.println("Event:" + event);
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final long capacityBefore = Events.assertField(event, "capacityBefore").getValue();
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final long capacityAfter = Events.assertField(event, "capacityAfter").below(capacityBefore).getValue();
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Events.assertField(event, "uncommitted").equal(capacityBefore - capacityAfter);
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}
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}
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}
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}

‎test/lib/jdk/test/lib/jfr/EventNames.java

+6
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@@ -142,6 +142,12 @@ public class EventNames {
142142
public final static String GCPhaseParallel = PREFIX + "GCPhaseParallel";
143143
public final static String GCPhaseConcurrent = PREFIX + "GCPhaseConcurrent";
144144
public final static String GCPhaseConcurrentLevel1 = PREFIX + "GCPhaseConcurrentLevel1";
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public final static String ZAllocationStall = PREFIX + "ZAllocationStall";
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public final static String ZPageAllocation = PREFIX + "ZPageAllocation";
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public final static String ZPageCacheFlush = PREFIX + "ZPageCacheFlush";
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public final static String ZRelocationSet = PREFIX + "ZRelocationSet";
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public final static String ZRelocationSetGroup = PREFIX + "ZRelocationSetGroup";
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public final static String ZUncommit = PREFIX + "ZUncommit";
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// Compiler
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public final static String Compilation = PREFIX + "Compilation";

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