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8241881: ZGC: Add tests for JFR events

Reviewed-by: stefank, eosterlund, egahlin
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pliden committed Apr 1, 2020
1 parent f1ef83b commit 6c9d6507dacd626c62a5ca31a9b216a69c05dcbf
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/*
* Copyright (c) 2020, 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.detailed;

import java.util.List;

import static gc.testlibrary.Allocation.blackHole;
import jdk.jfr.Recording;
import jdk.jfr.consumer.RecordedEvent;
import jdk.test.lib.jfr.EventNames;
import jdk.test.lib.jfr.Events;

/**
* @test TestZAllocationStallEvent
* @requires vm.hasJFR & vm.gc.Z
* @key jfr
* @library /test/lib /test/jdk /test/hotspot/jtreg
* @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseZGC -Xmx32M jdk.jfr.event.gc.detailed.TestZAllocationStallEvent
*/

public class TestZAllocationStallEvent {
public static void main(String[] args) throws Exception {
try (Recording recording = new Recording()) {
// Activate the event we are interested in and start recording
recording.enable(EventNames.ZAllocationStall);
recording.start();

// Allocate many large objects quickly, to outrun the GC
for (int i = 0; i < 100; i++) {
blackHole(new byte[16 * 1024 * 1024]);
}

recording.stop();

// Verify recording
List<RecordedEvent> events = Events.fromRecording(recording);
System.out.println("Events: " + events.size());
Events.hasEvents(events);
for (RecordedEvent event : Events.fromRecording(recording)) {
Events.assertField(event, "size").atLeast(2L * 1024 * 1024);
}
}
}
}
@@ -0,0 +1,67 @@
/*
* Copyright (c) 2020, 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.detailed;

import java.util.List;

import static gc.testlibrary.Allocation.blackHole;
import jdk.jfr.Recording;
import jdk.jfr.consumer.RecordedEvent;
import jdk.test.lib.jfr.EventNames;
import jdk.test.lib.jfr.Events;

/**
* @test TestZPageAllocationEvent
* @requires vm.hasJFR & vm.gc.Z
* @key jfr
* @library /test/lib /test/jdk /test/hotspot/jtreg
* @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseZGC -Xmx32M jdk.jfr.event.gc.detailed.TestZPageAllocationEvent
*/

public class TestZPageAllocationEvent {
public static void main(String[] args) throws Exception {
try (Recording recording = new Recording()) {
// Activate the event we are interested in and start recording
recording.enable(EventNames.ZPageAllocation);
recording.start();

// Allocate objects, to provoke page allocations
for (int i = 0; i < 100; i++) {
blackHole(new byte[256 * 1024]);
}

recording.stop();

// Verify recording
List<RecordedEvent> events = Events.fromRecording(recording);
System.out.println("Events: " + events.size());
Events.hasEvents(events);
for (RecordedEvent event : Events.fromRecording(recording)) {
Events.assertField(event, "size").atLeast(2L * 1024 * 1024);
}
}
}
}
@@ -0,0 +1,69 @@
/*
* Copyright (c) 2020, 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.detailed;

import java.util.List;

import static gc.testlibrary.Allocation.blackHole;
import jdk.jfr.Recording;
import jdk.jfr.consumer.RecordedEvent;
import jdk.test.lib.jfr.EventNames;
import jdk.test.lib.jfr.Events;

/**
* @test TestZPageCacheFlushEvent
* @requires vm.hasJFR & vm.gc.Z
* @key jfr
* @library /test/lib /test/jdk /test/hotspot/jtreg
* @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseZGC -Xmx32M jdk.jfr.event.gc.detailed.TestZPageCacheFlushEvent
*/

public class TestZPageCacheFlushEvent {
public static void main(String[] args) throws Exception {
try (Recording recording = new Recording()) {
// Activate the event we are interested in and start recording
recording.enable(EventNames.ZPageCacheFlush);
recording.start();

// Allocate non-large objects, to fill page cache with non-large pages
for (int i = 0; i < 128; i++) {
blackHole(new byte[256 * 1024]);
}

// Allocate large objects, to provoke page cache flushing
for (int i = 0; i < 10; i++) {
blackHole(new byte[7 * 1024 * 1024]);
}

recording.stop();

// Verify recording
List<RecordedEvent> events = Events.fromRecording(recording);
System.out.println("Events: " + events.size());
Events.hasEvents(events);
}
}
}
@@ -0,0 +1,62 @@
/*
* Copyright (c) 2020, 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.detailed;

import java.util.List;

import static gc.testlibrary.Allocation.blackHole;
import jdk.jfr.Recording;
import jdk.jfr.consumer.RecordedEvent;
import jdk.test.lib.jfr.EventNames;
import jdk.test.lib.jfr.Events;

/**
* @test TestZRelocationSetEvent
* @requires vm.hasJFR & vm.gc.Z
* @key jfr
* @library /test/lib /test/jdk /test/hotspot/jtreg
* @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseZGC -Xmx32M jdk.jfr.event.gc.detailed.TestZRelocationSetEvent
*/

public class TestZRelocationSetEvent {
public static void main(String[] args) throws Exception {
try (Recording recording = new Recording()) {
// Activate the event we are interested in and start recording
recording.enable(EventNames.ZRelocationSet);
recording.start();

// Collect
System.gc();

recording.stop();

// Verify recording
List<RecordedEvent> events = Events.fromRecording(recording);
System.out.println("Events: " + events.size());
Events.hasEvents(events);
}
}
}
@@ -0,0 +1,62 @@
/*
* Copyright (c) 2020, 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.detailed;

import java.util.List;

import static gc.testlibrary.Allocation.blackHole;
import jdk.jfr.Recording;
import jdk.jfr.consumer.RecordedEvent;
import jdk.test.lib.jfr.EventNames;
import jdk.test.lib.jfr.Events;

/**
* @test TestZRelocationSetGroupEvent
* @requires vm.hasJFR & vm.gc.Z
* @key jfr
* @library /test/lib /test/jdk /test/hotspot/jtreg
* @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseZGC -Xmx32M jdk.jfr.event.gc.detailed.TestZRelocationSetGroupEvent
*/

public class TestZRelocationSetGroupEvent {
public static void main(String[] args) throws Exception {
try (Recording recording = new Recording()) {
// Activate the event we are interested in and start recording
recording.enable(EventNames.ZRelocationSetGroup);
recording.start();

// Collect
System.gc();

recording.stop();

// Verify recording
List<RecordedEvent> events = Events.fromRecording(recording);
System.out.println("Events: " + events.size());
Events.hasEvents(events);
}
}
}

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