--- /dev/null 2020-01-02 04:43:18.583999853 +0000 +++ new/test/jdk/jfr/event/compiler/TestCodeCacheFull.java 2020-01-30 06:31:42.465598967 +0000 @@ -0,0 +1,106 @@ +/* + * Copyright (c) 2013, 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.event.compiler; + +import java.util.List; + +import jdk.jfr.Recording; +import jdk.jfr.consumer.RecordedEvent; +import jdk.test.lib.Asserts; +import jdk.test.lib.jfr.EventNames; +import jdk.test.lib.jfr.Events; +import sun.hotspot.WhiteBox; +import sun.hotspot.code.BlobType; + +/** + * @test TestCodeCacheFull + * + * + * @library /lib + * + * @build sun.hotspot.WhiteBox + * @run main ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission + * + * @run main/othervm -Xbootclasspath/a:. + * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI + * -XX:-UseLargePages jdk.jfr.event.compiler.TestCodeCacheFull + * @run main/othervm -Xbootclasspath/a:. + * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI + * jdk.jfr.event.compiler.TestCodeCacheFull + */ +public class TestCodeCacheFull { + + public static void main(String[] args) throws Exception { + for (BlobType btype : BlobType.getAvailable()) { + testWithBlobType(btype, calculateAvailableSize(btype)); + } + } + + private static void testWithBlobType(BlobType btype, long availableSize) throws Exception { + Recording r = new Recording(); + r.enable(EventNames.CodeCacheFull); + r.start(); + WhiteBox.getWhiteBox().allocateCodeBlob(availableSize, btype.id); + r.stop(); + + List events = Events.fromRecording(r); + Events.hasEvents(events); + RecordedEvent event = events.get(0); + + String codeBlobType = Events.assertField(event, "codeBlobType").notNull().getValue(); + BlobType blobType = blobTypeFromName(codeBlobType); + Asserts.assertTrue(blobType.allowTypeWhenOverflow(blobType), "Unexpected overflow BlobType " + blobType.id); + Events.assertField(event, "entryCount").atLeast(0); + Events.assertField(event, "methodCount").atLeast(0); + Events.assertEventThread(event); + Events.assertField(event, "fullCount").atLeast(0); + Events.assertField(event, "startAddress").notEqual(0L); + Events.assertField(event, "commitedTopAddress").notEqual(0L); + Events.assertField(event, "reservedTopAddress").notEqual(0L); + } + + private static BlobType blobTypeFromName(String codeBlobTypeName) throws Exception { + for (BlobType t : BlobType.getAvailable()) { + if (t.name.equals(codeBlobTypeName)) { + return t; + } + } + throw new Exception("Unexpected event " + codeBlobTypeName); + } + + // Compute the available size for this BlobType by taking into account + // that it may be stored in a different code heap in case it does not fit + // into the current one. + private static long calculateAvailableSize(BlobType btype) { + long availableSize = btype.getSize(); + for (BlobType alternative : BlobType.getAvailable()) { + if (btype.allowTypeWhenOverflow(alternative)) { + availableSize = Math.max(availableSize, alternative.getSize()); + } + } + return availableSize; + } +}