1 /* 2 * Copyright (c) 2019, 2020, Oracle and/or its affiliates. All rights reserved. 3 * 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.runtime; 27 28 import java.util.List; 29 import java.util.stream.Collectors; 30 31 import jdk.jfr.Recording; 32 import jdk.jfr.consumer.RecordedEvent; 33 import jdk.test.lib.Asserts; 34 import jdk.test.lib.jfr.EventNames; 35 import jdk.test.lib.jfr.Events; 36 37 /** 38 * @test 39 * @key jfr 40 * @requires vm.hasJFR 41 * @library /test/lib /test/jdk 42 * @modules java.base/jdk.internal.misc 43 * @build jdk.jfr.event.runtime.TestClasses 44 * @run main/othervm jdk.jfr.event.runtime.TestTableStatisticsEvent 45 * @bug 8185525 46 */ 47 public final class TestTableStatisticsEvent { main(String[] args)48 49 public static void main(String[] args) throws Throwable { 50 try (Recording recording = new Recording()) { 51 recording.enable(EventNames.SymbolTableStatistics); 52 recording.enable(EventNames.StringTableStatistics); 53 recording.enable(EventNames.PlaceholderTableStatistics); 54 recording.enable(EventNames.LoaderConstraintsTableStatistics); 55 recording.enable(EventNames.ProtectionDomainCacheTableStatistics); 56 recording.start(); 57 recording.stop(); 58 59 List<RecordedEvent> events = Events.fromRecording(recording); 60 verifyTable(events, EventNames.SymbolTableStatistics); 61 verifyTable(events, EventNames.StringTableStatistics); 62 verifyTable(events, EventNames.PlaceholderTableStatistics); 63 verifyTable(events, EventNames.LoaderConstraintsTableStatistics); 64 verifyTable(events, EventNames.ProtectionDomainCacheTableStatistics); 65 } 66 } 67 68 private static void verifyTable(List<RecordedEvent> allEvents, String eventName) throws Exception { 69 List<RecordedEvent> eventsForTable = allEvents.stream().filter(e -> e.getEventType().getName().equals(eventName)).collect(Collectors.toList()); 70 if (eventsForTable.isEmpty()) { 71 throw new Exception("No events for " + eventName); 72 } 73 for (RecordedEvent event : eventsForTable) { 74 Events.assertField(event, "bucketCount").atLeast(0L); 75 long entryCount = Events.assertField(event, "entryCount").atLeast(0L).getValue(); 76 Events.assertField(event, "totalFootprint").atLeast(0L); 77 float averageBucketCount = Events.assertField(event, "bucketCountAverage").atLeast(0.0f).getValue(); 78 Events.assertField(event, "bucketCountMaximum").atLeast((long)averageBucketCount); 79 Events.assertField(event, "bucketCountVariance").atLeast(0.0f); 80 Events.assertField(event, "bucketCountStandardDeviation").atLeast(0.0f); 81 float insertionRate = Events.assertField(event, "insertionRate").atLeast(0.0f).getValue(); 82 float removalRate = Events.assertField(event, "removalRate").atLeast(0.0f).getValue(); 83 if ((insertionRate > 0.0f) && (insertionRate > removalRate)) { 84 Asserts.assertGreaterThan(entryCount, 0L, "Entries marked as added, but no entries found for " + eventName); 85 } 86 } 87 } 88 } 89