--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/jvm/TestLargeJavaEvent64k.java Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,148 @@
+/*
+ * 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 TestLargeJavaEvent64k
+ * @key jfr
+ * @library /test/lib
+ * @modules jdk.jfr/jdk.jfr.internal
+ * java.base/jdk.internal.org.objectweb.asm
+ * @run main/othervm jdk.jfr.jvm.TestLargeJavaEvent64k
+ */
+public class TestLargeJavaEvent64k {
+ static boolean error;
+ static void setError() {
+ error = true;
+ }
+ static boolean hasError() {
+ return error;
+ }
+
+ public static void main(String... args) throws Exception {
+ final String name = "MyLargeJavaEvent64k"; // name of synthetically generated event
+ final String fieldNamePrefix = "myfield";
+ final int numberOfFields = 8; // 8*8k = ~64k event size
+ final Map<String, Object> eventMap = new HashMap<>();
+ final int numberOfThreads = 100; // 50 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) -> TestLargeJavaEvent64k.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);
+ }
+ }
+}