hotspot/test/gc/g1/TestRegionAlignment.java
author ccheung
Fri, 04 Oct 2013 21:00:43 -0700
changeset 20384 49bfb2ec8f8f
parent 17320 e7e94e2542e4
child 27692 11c231c781dc
permissions -rw-r--r--
Merge
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/*
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 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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/*
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 * @test TestRegionAlignment.java
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 * @bug 8013791
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 * @summary Make sure that G1 ergonomics pick a heap size that is aligned with the region size
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 * @run main/othervm -XX:+UseG1GC -XX:G1HeapRegionSize=32m -XX:MaxRAM=555m TestRegionAlignment
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 *
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 * When G1 ergonomically picks a maximum heap size it must be aligned to the region size.
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 * This test tries to get the VM to pick a small and unaligned heap size (by using MaxRAM=555) and a
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 * large region size (by using -XX:G1HeapRegionSize=32m). This will fail without the fix for 8013791.
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 */
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public class TestRegionAlignment {
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    public static void main(String[] args) { }
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}