src/hotspot/share/gc/g1/g1EvacuationInfo.hpp
author tschatzl
Thu, 21 Nov 2019 11:42:54 +0100
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permissions -rw-r--r--
8228609: G1 copy cost prediction uses used vs. actual copied byte Summary: Let the object copy cost predictor use the actual copied bytes as input for the prediction instead of the used bytes. Reviewed-by: kbarrett, sjohanss
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/*
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 * Copyright (c) 2013, 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_G1EVACUATIONINFO_HPP
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#define SHARE_GC_G1_G1EVACUATIONINFO_HPP
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#include "memory/allocation.hpp"
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class G1EvacuationInfo : public StackObj {
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  uint _collectionset_regions;
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  uint _allocation_regions;
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  size_t _collectionset_used_before;
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  size_t _collectionset_used_after;
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  size_t _alloc_regions_used_before;
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  size_t _bytes_used;
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  uint   _regions_freed;
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public:
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  G1EvacuationInfo() :
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    _collectionset_regions(0), _allocation_regions(0), _collectionset_used_before(0),
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    _collectionset_used_after(0), _alloc_regions_used_before(0),
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    _bytes_used(0), _regions_freed(0) { }
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  void set_collectionset_regions(uint collectionset_regions) {
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    _collectionset_regions = collectionset_regions;
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  }
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  void set_allocation_regions(uint allocation_regions) {
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    _allocation_regions = allocation_regions;
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  }
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  void set_collectionset_used_before(size_t used) {
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    _collectionset_used_before = used;
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  }
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  void increment_collectionset_used_after(size_t used) {
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    _collectionset_used_after += used;
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  }
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  void set_alloc_regions_used_before(size_t used) {
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    _alloc_regions_used_before = used;
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  }
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  void set_bytes_used(size_t used) {
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    _bytes_used = used;
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  }
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  void set_regions_freed(uint freed) {
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    _regions_freed += freed;
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  }
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  uint   collectionset_regions()     { return _collectionset_regions; }
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  uint   allocation_regions()        { return _allocation_regions; }
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  size_t collectionset_used_before() { return _collectionset_used_before; }
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  size_t collectionset_used_after()  { return _collectionset_used_after; }
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  size_t alloc_regions_used_before() { return _alloc_regions_used_before; }
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  size_t bytes_used()                { return _bytes_used; }
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  uint   regions_freed()             { return _regions_freed; }
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};
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#endif // SHARE_GC_G1_G1EVACUATIONINFO_HPP