Mercurial > hg > graal-jvmci-8
view src/share/vm/gc_implementation/g1/heapRegionSets.hpp @ 3914:20213c8a3c40
7050392: G1: Introduce flag to generate a log of the G1 ergonomic decisions
Summary: It introduces ergonomic decision logging in G1 for the following heuristics: heap sizing, collection set construction, concurrent cycle initiation, and partially-young GC start/end. The code has a bit of refactoring in a few places to make the decision logging possible. It also replaces alternative ad-hoc logging that we have under different parameters and switches (G1_DEBUG, G1PolicyVerbose).
Reviewed-by: johnc, ysr
author | tonyp |
---|---|
date | Wed, 07 Sep 2011 12:21:23 -0400 |
parents | e8b0b0392037 |
children | 8aae2050e83e |
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/* * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSETS_HPP #define SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSETS_HPP #include "gc_implementation/g1/heapRegionSet.inline.hpp" //////////////////// FreeRegionList //////////////////// class FreeRegionList : public HeapRegionLinkedList { protected: virtual const char* verify_region_extra(HeapRegion* hr); virtual bool regions_humongous() { return false; } virtual bool regions_empty() { return true; } public: FreeRegionList(const char* name) : HeapRegionLinkedList(name) { } }; //////////////////// MasterFreeRegionList //////////////////// class MasterFreeRegionList : public FreeRegionList { protected: virtual const char* verify_region_extra(HeapRegion* hr); virtual bool check_mt_safety(); public: MasterFreeRegionList(const char* name) : FreeRegionList(name) { } }; //////////////////// SecondaryFreeRegionList //////////////////// class SecondaryFreeRegionList : public FreeRegionList { protected: virtual bool check_mt_safety(); public: SecondaryFreeRegionList(const char* name) : FreeRegionList(name) { } }; //////////////////// HumongousRegionSet //////////////////// class HumongousRegionSet : public HeapRegionSet { protected: virtual const char* verify_region_extra(HeapRegion* hr); virtual bool regions_humongous() { return true; } virtual bool regions_empty() { return false; } public: HumongousRegionSet(const char* name) : HeapRegionSet(name) { } }; //////////////////// MasterHumongousRegionSet //////////////////// class MasterHumongousRegionSet : public HumongousRegionSet { protected: virtual bool check_mt_safety(); public: MasterHumongousRegionSet(const char* name) : HumongousRegionSet(name) { } }; #endif // SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSETS_HPP