Mercurial > hg > graal-compiler
view test/gc/g1/TestHumongousAllocInitialMark.java @ 19909:1fed7073f288
Add AMD64HotSpotCounterOp and SPARCHotSpotCounterOp.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Tue, 17 Mar 2015 17:18:47 +0100 |
parents | 89152779163c |
children |
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/* * Copyright (c) 2012, 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. */ /* * @test TestHumongousAllocInitialMark * @bug 7168848 * @summary G1: humongous object allocations should initiate marking cycles when necessary * @library /testlibrary */ import com.oracle.java.testlibrary.*; public class TestHumongousAllocInitialMark { private static final int heapSize = 200; // MB private static final int heapRegionSize = 1; // MB private static final int initiatingHeapOccupancyPercent = 50; // % public static void main(String[] args) throws Exception { ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( "-XX:+UseG1GC", "-Xms" + heapSize + "m", "-Xmx" + heapSize + "m", "-XX:G1HeapRegionSize=" + heapRegionSize + "m", "-XX:InitiatingHeapOccupancyPercent=" + initiatingHeapOccupancyPercent, "-XX:+PrintGC", HumongousObjectAllocator.class.getName()); OutputAnalyzer output = new OutputAnalyzer(pb.start()); output.shouldContain("GC pause (G1 Humongous Allocation) (young) (initial-mark)"); output.shouldNotContain("Full GC"); output.shouldHaveExitValue(0); } static class HumongousObjectAllocator { private static byte[] dummy; public static void main(String [] args) throws Exception { // Make object size 75% of region size final int humongousObjectSize = (int)(heapRegionSize * 1024 * 1024 * 0.75); // Number of objects to allocate to go above IHOP final int humongousObjectAllocations = (int)((heapSize * initiatingHeapOccupancyPercent / 100.0) / heapRegionSize) + 1; // Allocate for (int i = 1; i <= humongousObjectAllocations; i++) { System.out.println("Allocating humongous object " + i + "/" + humongousObjectAllocations + " of size " + humongousObjectSize + " bytes"); dummy = new byte[humongousObjectSize]; } } } }