Mercurial > hg > graal-compiler
view test/gc/metaspace/TestPerfCountersAndMemoryPools.java @ 12248:73d0d0218068
8024718: Metaspace performance counters and memory pools should report the same data
Reviewed-by: stefank, dholmes, coleenp
author | ehelin |
---|---|
date | Tue, 17 Sep 2013 20:59:07 +0200 |
parents | |
children | 6e22e7042433 |
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/* * 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 * @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 TestPerfCountersAndMemoryPools * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCompressedOops -XX:+UseCompressedKlassPointers -XX:+UseSerialGC -XX:+UsePerfData 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 MemoryUsage getMemoryUsage(String memoryPoolName) { List<MemoryPoolMXBean> pools = ManagementFactory.getMemoryPoolMXBeans(); for (MemoryPoolMXBean pool : pools) { if (pool.getName().equals(memoryPoolName)) { return pool.getUsage(); } } throw new RuntimeException("Excpted to find a memory pool with name " + memoryPoolName); } private static void checkMemoryUsage(String memoryPoolName, String perfNS) throws Exception { // Need to do a gc before each comparison to update the perf counters System.gc(); MemoryUsage mu = getMemoryUsage(memoryPoolName); assertEQ(getMinCapacity(perfNS), mu.getInit()); System.gc(); mu = getMemoryUsage(memoryPoolName); assertEQ(getUsed(perfNS), mu.getUsed()); System.gc(); mu = getMemoryUsage(memoryPoolName); assertEQ(getCapacity(perfNS), mu.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(); } }