154a1a02bf
Use script and some manual fixup to fix directores names in include guards. Reviewed-by: lfoltan, eosterlund, kbarrett
52 lines
2.1 KiB
C++
52 lines
2.1 KiB
C++
/*
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* Copyright (c) 2018, 2019, 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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#ifndef SHARE_GC_G1_G1HETEROGENEOUSHEAPYOUNGGENSIZER_HPP
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#define SHARE_GC_G1_G1HETEROGENEOUSHEAPYOUNGGENSIZER_HPP
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#include "gc/g1/g1YoungGenSizer.hpp"
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// This class prevents the size of young generation of G1 heap to exceed dram
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// memory available. If set on command line, MaxRAM and MaxRAMFraction/MaxRAMPercentage
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// are used to determine the maximum size that young generation can grow.
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// Else we set the maximum size to 80% of dram available in the system.
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class G1HeterogeneousHeapYoungGenSizer : public G1YoungGenSizer {
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private:
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// maximum no of regions that young generation can grow to. Calculated in constructor.
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uint _max_young_length;
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void adjust_lengths_based_on_dram_memory();
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public:
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G1HeterogeneousHeapYoungGenSizer();
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// Calculate the maximum length of the young gen given the number of regions
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// depending on the sizing algorithm.
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virtual void adjust_max_new_size(uint number_of_heap_regions);
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virtual void heap_size_changed(uint new_number_of_heap_regions);
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};
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#endif // SHARE_GC_G1_G1HETEROGENEOUSHEAPYOUNGGENSIZER_HPP
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