Mercurial > hg > graal-compiler
view test/gc/metaspace/TestPerfCountersAndMemoryPools.java @ 19544:9ab357c8c0d0
made helper methods private
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Tue, 03 Mar 2015 14:19:59 +0100 |
parents | 6e22e7042433 |
children |
line wrap: on
line source
/* * 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(); } }