test/jdk/jdk/jfr/event/compiler/TestCodeCacheFull.java
changeset 50113 caf115bb98ad
child 51214 67736b4846a0
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/event/compiler/TestCodeCacheFull.java	Tue May 15 20:24:34 2018 +0200
@@ -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 /test/lib
+ * @modules jdk.jfr
+ *          jdk.management.jfr
+ * @build sun.hotspot.WhiteBox
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
+ *
+ * @run main/othervm -Xbootclasspath/a:.
+ *     -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
+ *     -XX:+SegmentedCodeCache -XX:-UseLargePages jdk.jfr.event.compiler.TestCodeCacheFull
+ * @run main/othervm -Xbootclasspath/a:.
+ *     -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
+ *     -XX:-SegmentedCodeCache 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<RecordedEvent> 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.beanName.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;
+    }
+}