# HG changeset patch # User stefank # Date 1410789607 -7200 # Mon Sep 15 16:00:07 2014 +0200 # Node ID 530346416a1fb67cf739c505139f1363b6d8a6f7 # Parent 2b1f46ac5d493341c35894282f07dc170d3d2bf6 imported patch fix diff --git a/test/gc/class_unloading/AllocateBeyondMetaspaceSize.java b/test/gc/class_unloading/AllocateBeyondMetaspaceSize.java deleted file mode 100644 --- a/test/gc/class_unloading/AllocateBeyondMetaspaceSize.java +++ /dev/null @@ -1,59 +0,0 @@ -/* - * Copyright (c) 2014, 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. - * - * 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. - */ - -import sun.hotspot.WhiteBox; - -class AllocateBeyondMetaspaceSize { - public static Object dummy; - - public static void main(String [] args) { - if (args.length != 2) { - throw new IllegalArgumentException("Usage: "); - } - - long metaspaceSize = Long.parseLong(args[0]); - long youngGenSize = Long.parseLong(args[1]); - - run(metaspaceSize, youngGenSize); - } - - private static void run(long metaspaceSize, long youngGenSize) { - WhiteBox wb = WhiteBox.getWhiteBox(); - - long allocationBeyondMetaspaceSize = metaspaceSize * 2; - long metaspace = wb.allocateMetaspace(null, allocationBeyondMetaspaceSize); - - triggerYoungGC(youngGenSize); - - wb.freeMetaspace(null, metaspace, metaspace); - } - - private static void triggerYoungGC(long youngGenSize) { - long approxAllocSize = 32 * 1024; - long numAllocations = 2 * youngGenSize / approxAllocSize; - - for (long i = 0; i < numAllocations; i++) { - dummy = new byte[(int)approxAllocSize]; - } - } -} diff --git a/test/gc/class_unloading/TestCMSClassUnloadingEnabledHWM.java b/test/gc/class_unloading/TestCMSClassUnloadingEnabledHWM.java --- a/test/gc/class_unloading/TestCMSClassUnloadingEnabledHWM.java +++ b/test/gc/class_unloading/TestCMSClassUnloadingEnabledHWM.java @@ -26,7 +26,7 @@ * @key gc * @bug 8049831 * @library /testlibrary /testlibrary/whitebox - * @build TestCMSClassUnloadingEnabledHWM AllocateBeyondMetaspaceSize + * @build TestCMSClassUnloadingEnabledHWM * @run main ClassFileInstaller sun.hotspot.WhiteBox * sun.hotspot.WhiteBox$WhiteBoxPermission * @run driver TestCMSClassUnloadingEnabledHWM @@ -35,9 +35,11 @@ import com.oracle.java.testlibrary.OutputAnalyzer; import com.oracle.java.testlibrary.ProcessTools; - +import java.lang.management.GarbageCollectorMXBean; +import java.lang.management.ManagementFactory; import java.util.ArrayList; import java.util.Arrays; +import sun.hotspot.WhiteBox; public class TestCMSClassUnloadingEnabledHWM { private static long MetaspaceSize = 32 * 1024 * 1024; @@ -48,15 +50,18 @@ "-Xbootclasspath/a:.", "-XX:+UnlockDiagnosticVMOptions", "-XX:+WhiteBoxAPI", + "-Xmx128m", + "-XX:CMSMaxAbortablePrecleanTime=1", + "-XX:CMSWaitDuration=50", "-XX:MetaspaceSize=" + MetaspaceSize, "-Xmn" + YoungGenSize, "-XX:+UseConcMarkSweepGC", "-XX:" + (enableUnloading ? "+" : "-") + "CMSClassUnloadingEnabled", "-XX:+PrintHeapAtGC", "-XX:+PrintGCDetails", - "AllocateBeyondMetaspaceSize", - "" + MetaspaceSize, - "" + YoungGenSize); + "-XX:+PrintGCTimeStamps", + "TestCMSClassUnloadingEnabledHWM$AllocateBeyondMetaspaceSize", + "" + MetaspaceSize); return new OutputAnalyzer(pb.start()); } @@ -88,5 +93,37 @@ testWithCMSClassUnloading(); testWithoutCMSClassUnloading(); } + + public static class AllocateBeyondMetaspaceSize { + public static void main(String [] args) throws Exception { + if (args.length != 1) { + throw new IllegalArgumentException("Usage: "); + } + + WhiteBox wb = WhiteBox.getWhiteBox(); + + // Allocate past the MetaspaceSize limit. + long metaspaceSize = Long.parseLong(args[0]); + long allocationBeyondMetaspaceSize = metaspaceSize * 2; + long metaspace = wb.allocateMetaspace(null, allocationBeyondMetaspaceSize); + + // Wait for at least one GC to occur. The caller will parse the log files produced. + GarbageCollectorMXBean cmsGCBean = getCMSGCBean(); + while (cmsGCBean.getCollectionCount() == 0) { + Thread.sleep(100); + } + + wb.freeMetaspace(null, metaspace, metaspace); + } + + private static GarbageCollectorMXBean getCMSGCBean() { + for (GarbageCollectorMXBean gcBean : ManagementFactory.getGarbageCollectorMXBeans()) { + if (gcBean.getObjectName().toString().equals("java.lang:type=GarbageCollector,name=ConcurrentMarkSweep")) { + return gcBean; + } + } + return null; + } + } } diff --git a/test/gc/class_unloading/TestG1ClassUnloadingHWM.java b/test/gc/class_unloading/TestG1ClassUnloadingHWM.java --- a/test/gc/class_unloading/TestG1ClassUnloadingHWM.java +++ b/test/gc/class_unloading/TestG1ClassUnloadingHWM.java @@ -26,7 +26,7 @@ * @key gc * @bug 8049831 * @library /testlibrary /testlibrary/whitebox - * @build TestG1ClassUnloadingHWM AllocateBeyondMetaspaceSize + * @build TestG1ClassUnloadingHWM * @run main ClassFileInstaller sun.hotspot.WhiteBox * sun.hotspot.WhiteBox$WhiteBoxPermission * @run driver TestG1ClassUnloadingHWM @@ -35,9 +35,9 @@ import com.oracle.java.testlibrary.OutputAnalyzer; import com.oracle.java.testlibrary.ProcessTools; - import java.util.ArrayList; import java.util.Arrays; +import sun.hotspot.WhiteBox; public class TestG1ClassUnloadingHWM { private static long MetaspaceSize = 32 * 1024 * 1024; @@ -54,7 +54,7 @@ "-XX:" + (enableUnloading ? "+" : "-") + "ClassUnloadingWithConcurrentMark", "-XX:+PrintHeapAtGC", "-XX:+PrintGCDetails", - "AllocateBeyondMetaspaceSize", + "TestG1ClassUnloadingHWM$AllocateBeyondMetaspaceSize", "" + MetaspaceSize, "" + YoungGenSize); return new OutputAnalyzer(pb.start()); @@ -88,5 +88,36 @@ testWithG1ClassUnloading(); testWithoutG1ClassUnloading(); } + + public static class AllocateBeyondMetaspaceSize { + public static Object dummy; + + public static void main(String [] args) throws Exception { + if (args.length != 2) { + throw new IllegalArgumentException("Usage: "); + } + + WhiteBox wb = WhiteBox.getWhiteBox(); + + // Allocate past the MetaspaceSize limit + long metaspaceSize = Long.parseLong(args[0]); + long allocationBeyondMetaspaceSize = metaspaceSize * 2; + long metaspace = wb.allocateMetaspace(null, allocationBeyondMetaspaceSize); + + long youngGenSize = Long.parseLong(args[1]); + triggerYoungGCs(youngGenSize); + + wb.freeMetaspace(null, metaspace, metaspace); + } + + public static void triggerYoungGCs(long youngGenSize) { + long approxAllocSize = 32 * 1024; + long numAllocations = 2 * youngGenSize / approxAllocSize; + + for (long i = 0; i < numAllocations; i++) { + dummy = new byte[(int)approxAllocSize]; + } + } + } }