52 lines
2.3 KiB
C++
52 lines
2.3 KiB
C++
/*
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* Copyright (c) 2018, 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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#include "precompiled.hpp"
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#include "gc/g1/g1Arguments.hpp"
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#include "gc/g1/g1HeterogeneousHeapYoungGenSizer.hpp"
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#include "gc/g1/heapRegion.hpp"
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G1HeterogeneousHeapYoungGenSizer::G1HeterogeneousHeapYoungGenSizer() : G1YoungGenSizer() {
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// will be used later when min and max young size is calculated.
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_max_young_length = (uint)(G1Arguments::reasonable_max_memory_for_young() / HeapRegion::GrainBytes);
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}
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// Since heap is sized potentially to larger value accounting for dram + nvdimm, we need to limit
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// max young gen size to the available dram.
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// Call parent class method first and then adjust sizes based on available dram
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void G1HeterogeneousHeapYoungGenSizer::adjust_max_new_size(uint number_of_heap_regions) {
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G1YoungGenSizer::adjust_max_new_size(number_of_heap_regions);
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adjust_lengths_based_on_dram_memory();
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}
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void G1HeterogeneousHeapYoungGenSizer::heap_size_changed(uint new_number_of_heap_regions) {
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G1YoungGenSizer::heap_size_changed(new_number_of_heap_regions);
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adjust_lengths_based_on_dram_memory();
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}
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void G1HeterogeneousHeapYoungGenSizer::adjust_lengths_based_on_dram_memory() {
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_min_desired_young_length = MIN2(_min_desired_young_length, _max_young_length);
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_max_desired_young_length = MIN2(_max_desired_young_length, _max_young_length);
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}
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