1 /* 2 * Copyright (c) 2013, 2018, 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.compiler; 27 28 import java.util.List; 29 30 import jdk.jfr.Recording; 31 import jdk.jfr.consumer.RecordedEvent; 32 import jdk.test.lib.Asserts; 33 import jdk.test.lib.jfr.EventNames; 34 import jdk.test.lib.jfr.Events; 35 import sun.hotspot.WhiteBox; 36 import sun.hotspot.code.BlobType; 37 38 /** 39 * @test TestCodeCacheFull 40 * 41 * 42 * @library /lib / 43 * 44 * jdk.management.jfr 45 * @build sun.hotspot.WhiteBox 46 * @run main ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission 47 * 48 * @run main/othervm -Xbootclasspath/a:. 49 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI 50 * -XX:+SegmentedCodeCache -XX:-UseLargePages jdk.jfr.event.compiler.TestCodeCacheFull 51 * @run main/othervm -Xbootclasspath/a:. 52 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI 53 * -XX:-SegmentedCodeCache jdk.jfr.event.compiler.TestCodeCacheFull 54 */ 55 public class TestCodeCacheFull { 56 57 public static void main(String[] args) throws Exception { 58 for (BlobType btype : BlobType.getAvailable()) { 59 testWithBlobType(btype, calculateAvailableSize(btype)); 60 } 61 } 62 63 private static void testWithBlobType(BlobType btype, long availableSize) throws Exception { 64 Recording r = new Recording(); 65 r.enable(EventNames.CodeCacheFull); 66 r.start(); 67 WhiteBox.getWhiteBox().allocateCodeBlob(availableSize, btype.id); 68 r.stop(); 69 70 List<RecordedEvent> events = Events.fromRecording(r); 71 Events.hasEvents(events); 72 RecordedEvent event = events.get(0); 73 74 String codeBlobType = Events.assertField(event, "codeBlobType").notNull().getValue(); 75 BlobType blobType = blobTypeFromName(codeBlobType); 76 Asserts.assertTrue(blobType.allowTypeWhenOverflow(blobType), "Unexpected overflow BlobType " + blobType.id); 77 Events.assertField(event, "entryCount").atLeast(0); 78 Events.assertField(event, "methodCount").atLeast(0); 79 Events.assertEventThread(event); 80 Events.assertField(event, "fullCount").atLeast(0); 81 Events.assertField(event, "startAddress").notEqual(0L); 82 Events.assertField(event, "commitedTopAddress").notEqual(0L); 83 Events.assertField(event, "reservedTopAddress").notEqual(0L); 84 } 85 86 private static BlobType blobTypeFromName(String codeBlobTypeName) throws Exception { 87 for (BlobType t : BlobType.getAvailable()) { 88 if (t.beanName.equals(codeBlobTypeName)) { 89 return t; 90 } 91 } 92 throw new Exception("Unexpected event " + codeBlobTypeName); 93 } 94 95 // Compute the available size for this BlobType by taking into account 96 // that it may be stored in a different code heap in case it does not fit 97 // into the current one. 98 private static long calculateAvailableSize(BlobType btype) { 99 long availableSize = btype.getSize(); 100 for (BlobType alternative : BlobType.getAvailable()) { 101 if (btype.allowTypeWhenOverflow(alternative)) { 102 availableSize = Math.max(availableSize, alternative.getSize()); 103 } 104 } 105 return availableSize; 106 } 107 }