jdk8-mips64-public/hotspot: test/gc/metaspace/TestPerfCountersAndMemoryPools.java@14b8221771dc (annotated)

test/gc/metaspace/TestPerfCountersAndMemoryPools.java@14b8221771dc (annotated)

test/gc/metaspace/TestPerfCountersAndMemoryPools.java

Wed, 03 Sep 2014 09:25:44 +0200

author: tschatzl
date: Wed, 03 Sep 2014 09:25:44 +0200
changeset 7097: 14b8221771dc
parent 5816: 6e22e7042433
child 6876: 710a3c8b516e
child 7785: f967da7f0c3c
permissions: -rw-r--r--

Merge

 /*
  * Copyright (c) 2013, 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 java.util.List;
 import java.lang.management.*;
 import com.oracle.java.testlibrary.*;
 import static com.oracle.java.testlibrary.Asserts.*;
 /* @test TestPerfCountersAndMemoryPools
  * @bug 8023476
  * @library /testlibrary
  * @summary Tests that a MemoryPoolMXBeans and PerfCounters for metaspace
  *          report the same data.
  * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-UseCompressedOops -XX:-UseCompressedKlassPointers -XX:+UseSerialGC -XX:+UsePerfData -Xint TestPerfCountersAndMemoryPools
  * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCompressedOops -XX:+UseCompressedKlassPointers -XX:+UseSerialGC -XX:+UsePerfData -Xint TestPerfCountersAndMemoryPools
  */
 public class TestPerfCountersAndMemoryPools {
     public static void main(String[] args) throws Exception {
         checkMemoryUsage("Metaspace", "sun.gc.metaspace");
         if (InputArguments.contains("-XX:+UseCompressedKlassPointers") && Platform.is64bit()) {
             checkMemoryUsage("Compressed Class Space", "sun.gc.compressedclassspace");
         }
     }
     private static MemoryPoolMXBean getMemoryPool(String memoryPoolName) {
         List<MemoryPoolMXBean> pools = ManagementFactory.getMemoryPoolMXBeans();
         for (MemoryPoolMXBean pool : pools) {
             if (pool.getName().equals(memoryPoolName)) {
                 return pool;
             }
         }
         throw new RuntimeException("Excpted to find a memory pool with name " +
                                    memoryPoolName);
     }
     private static void checkMemoryUsage(String memoryPoolName, String perfNS)
         throws Exception {
         MemoryPoolMXBean pool = getMemoryPool(memoryPoolName);
         // Must do a GC to update performance counters
         System.gc();
         assertEQ(getMinCapacity(perfNS), pool.getUsage().getInit());
         // Must do a second GC to update the perfomance counters again, since
         // the call pool.getUsage().getInit() could have allocated some
         // metadata.
         System.gc();
         assertEQ(getUsed(perfNS), pool.getUsage().getUsed());
         assertEQ(getCapacity(perfNS), pool.getUsage().getCommitted());
     }
     private static long getMinCapacity(String ns) throws Exception {
         return PerfCounters.findByName(ns + ".minCapacity").longValue();
     }
     private static long getCapacity(String ns) throws Exception {
         return PerfCounters.findByName(ns + ".capacity").longValue();
     }
     private static long getUsed(String ns) throws Exception {
         return PerfCounters.findByName(ns + ".used").longValue();
     }
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

test/gc/metaspace/TestPerfCountersAndMemoryPools.java@14b8221771dc (annotated)

test/gc/metaspace/TestPerfCountersAndMemoryPools.java