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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.
*
* 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.jvm;
import java.io.IOException;
import java.util.List;
import jdk.jfr.Event;
import jdk.jfr.Recording;
import jdk.jfr.ValueDescriptor;
import jdk.jfr.consumer.RecordedEvent;
import jdk.test.lib.Asserts;
import jdk.test.lib.jfr.EventNames;
import jdk.test.lib.jfr.Events;
/**
* @test TestFatEvent
* @key jfr
* @requires vm.hasJFR
* @library /test/lib
* @run main/othervm -Dprop1=12345678901234567890123456789012345678901234567890
* -Dprop2=12345678901234567890123456789012345678901234567890
* -Dprop3=12345678901234567890123456789012345678901234567890
* jdk.jfr.jvm.TestFatEvent
*/
public class TestFatEvent {
public static void main(String... args) throws Exception {
testFatNativeEvent();
testFatJavaEvent();
}
private static void testFatNativeEvent() throws Exception {
try (Recording r = new Recording()) {
r.enable(EventNames.JVMInformation).with("period", "everyChunk");
r.start();
r.stop();
List<RecordedEvent> events = Events.fromRecording(r);
Asserts.assertEquals(2, events.size());
for (RecordedEvent e : events) {
String s = e.getString("jvmArguments");
if (s.length() < 150) {
throw new Exception("Expected at least 150 characters");
}
}
}
}
private static final Long expected = Long.MAX_VALUE;
private static void testFatJavaEvent() throws IOException, Exception {
// This event use more than 127 bytes
// which requires two bytes in compressed
// integer format
class FatEvent extends Event {
long a = expected;
long b = expected;
long c = expected;
long d = expected;
long e = expected;
long f = expected;
long g = expected;
long h = expected;
long i = expected;
long j = expected;
long k = expected;
long l = expected;
long m = expected;
long n = expected;
long o = expected;
long p = expected;
long q = expected;
long r = expected;
long s = expected;
long t = expected;
long u = expected;
long v = expected;
long w = expected;
long x = expected;
long y = expected;
long z = expected;
}
try (Recording r = new Recording()) {
r.start();
int eventCount = 5000; //
for (int i = 0; i < eventCount; i++) {
FatEvent event = new FatEvent();
event.commit();
}
r.stop();
List<RecordedEvent> events = Events.fromRecording(r);
int count = 0;
for (RecordedEvent event : events) {
verifyEvent(event);
count++;
}
if (count != eventCount) {
throw new Exception("Unexpected event count " + count + ", expected " + eventCount);
}
}
}
private static void verifyEvent(RecordedEvent e) throws Exception {
for (ValueDescriptor v : e.getEventType().getFields()) {
String fieldName = v.getName();
Object o = e.getValue(v.getName());
if (fieldName.length() == 1 && !o.equals(expected)) {
System.out.println("Expected: " + expected);
System.out.println(e);
throw new Exception("Unexpected value " + o + " for field " + fieldName);
}
}
}
}
¤ Dauer der Verarbeitung: 0.1 Sekunden
(vorverarbeitet)
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