aoqi@0: /*
aoqi@0:  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
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aoqi@0:  */
aoqi@0: 
aoqi@0: /*
aoqi@0:  * @test TestRegionAlignment.java
aoqi@0:  * @bug 8013791
aoqi@0:  * @summary Make sure that G1 ergonomics pick a heap size that is aligned with the region size
aoqi@0:  * @run main/othervm -XX:+UseG1GC -XX:G1HeapRegionSize=32m -XX:MaxRAM=555m TestRegionAlignment
aoqi@0:  *
aoqi@0:  * When G1 ergonomically picks a maximum heap size it must be aligned to the region size.
aoqi@0:  * This test tries to get the VM to pick a small and unaligned heap size (by using MaxRAM=555) and a
aoqi@0:  * large region size (by using -XX:G1HeapRegionSize=32m). This will fail without the fix for 8013791.
aoqi@0:  */
aoqi@0: public class TestRegionAlignment {
aoqi@0:     public static void main(String[] args) { }
aoqi@0: }