Mercurial > hg > graal-compiler
diff test/gc/arguments/TestG1HeapRegionSize.java @ 11978:dae8324fc7d1
8021879: G1: G1HeapRegionSize flag value not updated correctly
Reviewed-by: tschatzl, jmasa
author | brutisso |
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date | Thu, 01 Aug 2013 09:35:04 +0200 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/gc/arguments/TestG1HeapRegionSize.java Thu Aug 01 09:35:04 2013 +0200 @@ -0,0 +1,64 @@ +/* +* 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. +*/ + +/* + * @test TestG1HeapRegionSize + * @key gc + * @bug 8021879 + * @summary Verify that the flag G1HeapRegionSize is updated properly + * @run main/othervm -Xmx64m TestG1HeapRegionSize 1048576 + * @run main/othervm -XX:G1HeapRegionSize=2m -Xmx64m TestG1HeapRegionSize 2097152 + * @run main/othervm -XX:G1HeapRegionSize=3m -Xmx64m TestG1HeapRegionSize 2097152 + * @run main/othervm -XX:G1HeapRegionSize=64m -Xmx256m TestG1HeapRegionSize 33554432 + */ + +import sun.management.ManagementFactoryHelper; +import com.sun.management.HotSpotDiagnosticMXBean; +import com.sun.management.VMOption; + +public class TestG1HeapRegionSize { + + public static void main(String[] args) { + HotSpotDiagnosticMXBean diagnostic = ManagementFactoryHelper.getDiagnosticMXBean(); + + VMOption option = diagnostic.getVMOption("UseG1GC"); + if (option.getValue().equals("false")) { + System.out.println("Skipping this test. It is only a G1 test."); + return; + } + + String expectedValue = getExpectedValue(args); + option = diagnostic.getVMOption("G1HeapRegionSize"); + if (!expectedValue.equals(option.getValue())) { + throw new RuntimeException("Wrong value for G1HeapRegionSize. Expected " + expectedValue + " but got " + option.getValue()); + } + } + + private static String getExpectedValue(String[] args) { + if (args.length != 1) { + throw new RuntimeException("Wrong number of arguments. Expected 1 but got " + args.length); + } + return args[0]; + } + +}