| /* |
| * Copyright (c) 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.jvm; |
| |
| import java.io.IOException; |
| import java.time.Duration; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import jdk.jfr.Event; |
| import jdk.jfr.EventFactory; |
| import jdk.jfr.Recording; |
| import jdk.jfr.ValueDescriptor; |
| import jdk.jfr.consumer.RecordedEvent; |
| import jdk.test.lib.Asserts; |
| import jdk.test.lib.jfr.EventTypePrototype; |
| import jdk.test.lib.jfr.Events; |
| import jdk.test.lib.jfr.Stressor; |
| |
| /** |
| * @test TestLargeJavaEvent512k |
| * @key jfr |
| * @requires vm.hasJFR |
| * @library /test/lib |
| * @modules jdk.jfr/jdk.jfr.internal |
| * java.base/jdk.internal.org.objectweb.asm |
| * @run main/othervm jdk.jfr.jvm.TestLargeJavaEvent512k |
| */ |
| public class TestLargeJavaEvent512k { |
| static boolean error; |
| static void setError() { |
| error = true; |
| } |
| static boolean hasError() { |
| return error; |
| } |
| |
| public static void main(String... args) throws Exception { |
| final String name = "MyLargeJavaEvent512k"; // name of synthetically generated event |
| final String fieldNamePrefix = "myfield"; |
| final int numberOfFields = 64; // 64*8k = 512k event size |
| final Map<String, Object> eventMap = new HashMap<>(); |
| final int numberOfThreads = 10; // 10 threads will run the test |
| final int numberOfEventsPerThread = 50; // each thread will generate 50 events |
| |
| List<ValueDescriptor> fields = new ArrayList<>(); |
| for (int i = 0; i < numberOfFields; ++i) { |
| String fieldName = fieldNamePrefix + i; |
| eventMap.put(fieldName, largeString()); |
| fields.add(new ValueDescriptor(String.class, fieldName)); |
| } |
| |
| EventTypePrototype prototype = new EventTypePrototype(name,Collections.emptyList(), fields); |
| |
| EventFactory ef = EventFactory.create(prototype.getAnnotations(), prototype.getFields()); |
| |
| Recording r = new Recording(); |
| r.enable(prototype.getName()).withThreshold(Duration.ofNanos(0)).withoutStackTrace(); |
| r.start(); |
| |
| Thread.UncaughtExceptionHandler eh = (t, e) -> TestLargeJavaEvent512k.setError(); |
| |
| Stressor.execute(numberOfThreads, eh, () -> { |
| for (int n = 0; n < numberOfEventsPerThread; ++n) { |
| try { |
| Event event = ef.newEvent(); |
| setEventValues(event, ef, prototype, eventMap); |
| event.commit(); |
| Thread.sleep(1); |
| } catch (Exception ex) { |
| throw new RuntimeException(ex); |
| } |
| } |
| }); |
| r.stop(); |
| try { |
| if (hasError()) { |
| throw new RuntimeException("One (or several) of the threads had an exception/error, test failed"); |
| } |
| verifyEvents(r, numberOfThreads, numberOfEventsPerThread, eventMap); |
| } finally { |
| r.close(); |
| } |
| } |
| |
| private static void verifyEvents(Recording r, int numberOfThreads, int iterations, Map<String, Object> fields) throws IOException { |
| List<RecordedEvent> recordedEvents = Events.fromRecording(r); |
| Events.hasEvents(recordedEvents); |
| int eventCount = 0; |
| for (RecordedEvent re : recordedEvents) { |
| verify(re, fields); |
| eventCount++; |
| } |
| System.out.println("Number of expected events: " + numberOfThreads * iterations); |
| System.out.println("Number of events found: " + eventCount); |
| Asserts.assertEquals(numberOfThreads * iterations, eventCount, "Unexpected number of events"); |
| } |
| |
| // each row is 64 chars for 128 rows == 8192 chars |
| private static String largeString() { |
| StringBuilder builder = new StringBuilder(); |
| for (int i = 0; i < 128; ++i) { |
| builder.append("cygwinapacygwinapacygwinapacygwinapacygwinapacygwinapacygwinapa "); |
| } |
| return builder.toString(); |
| } |
| |
| private static void setEventValues(Event event, EventFactory f, EventTypePrototype prototype, Map<String, Object> fields) { |
| for (Map.Entry<String, Object> entry : fields.entrySet()) { |
| int index = prototype.getFieldIndex(entry.getKey()); |
| event.set(index, entry.getValue()); |
| } |
| } |
| |
| private static void verify(RecordedEvent event, Map<String, Object> fields) { |
| for (Map.Entry<String, Object> entry : fields.entrySet()) { |
| String fieldName = entry.getKey(); |
| Object value = event.getValue(fieldName); |
| Object expected = fields.get(fieldName); |
| Asserts.assertEQ(value, expected); |
| } |
| } |
| } |