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annotate src/share/vm/gc_implementation/parallelScavenge/generationSizer.hpp @ 13060:8f07aa079343

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8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking 7057939: jmap shows MaxNewSize=4GB when Java is using parallel collector Summary: Major cleanup of the collectorpolicy classes Reviewed-by: tschatzl, jcoomes
author jwilhelm
date Fri, 01 Nov 2013 17:09:38 +0100
parents c49c7f835e8d
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1 /*
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2 * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #ifndef SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GENERATIONSIZER_HPP
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26 #define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GENERATIONSIZER_HPP
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28 #include "memory/collectorPolicy.hpp"
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29
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30 // There is a nice batch of tested generation sizing code in
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31 // TwoGenerationCollectorPolicy. Lets reuse it!
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33 class GenerationSizer : public TwoGenerationCollectorPolicy {
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34 private:
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35
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36 void trace_gen_sizes(const char* const str);
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37
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38 // The alignment used for boundary between young gen and old gen
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39 static size_t default_gen_alignment() { return 64 * K * HeapWordSize; }
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40
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41 protected:
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42
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43 void initialize_alignments();
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44 void initialize_flags();
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45 void initialize_size_info();
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46 };
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47 #endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GENERATIONSIZER_HPP