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view src/share/vm/gc_implementation/g1/g1_specialized_oop_closures.hpp @ 12110:4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
Summary: Replace the broken large pages implementation on Linux. New flag: -XX:+UseTransparentHugePages - Linux specific flag to turn on transparent huge page hinting with madvise(..., MAP_HUGETLB). Changed behavior: -XX:+UseLargePages - tries to use -XX:+UseTransparentHugePages before trying other large pages implementations (on Linux). Changed behavior: -XX:+UseHugeTLBFS - Use upfront allocation of Large Pages instead of using the broken implementation to dynamically committing large pages. Changed behavior: -XX:LargePageSizeInBytes - Turned off the ability to use this flag on Linux and provides warning to user if set to a value different than the OS chosen large page size. Changed behavior: Setting no large page size - Now defaults to use -XX:UseTransparentHugePages if the OS supports it. Previously, -XX:+UseHugeTLBFS was chosen if the OS was configured to use large pages.
Reviewed-by: tschatzl, dcubed, brutisso
author | stefank |
---|---|
date | Fri, 16 Aug 2013 13:22:32 +0200 |
parents | da91efe96a93 |
children | c685ef164975 |
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/* * Copyright (c) 2001, 2012, 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_G1_SPECIALIZED_OOP_CLOSURES_HPP #define SHARE_VM_GC_IMPLEMENTATION_G1_G1_SPECIALIZED_OOP_CLOSURES_HPP // The following OopClosure types get specialized versions of // "oop_oop_iterate" that invoke the closures' do_oop methods // non-virtually, using a mechanism defined in this file. Extend these // macros in the obvious way to add specializations for new closures. // Forward declarations. enum G1Barrier { G1BarrierNone, G1BarrierRS, G1BarrierEvac, G1BarrierKlass }; template<bool do_gen_barrier, G1Barrier barrier, bool do_mark_object> class G1ParCopyClosure; class G1ParScanClosure; class G1ParPushHeapRSClosure; typedef G1ParCopyClosure<false, G1BarrierEvac, false> G1ParScanHeapEvacClosure; class FilterIntoCSClosure; class FilterOutOfRegionClosure; class G1CMOopClosure; class G1RootRegionScanClosure; // Specialized oop closures from g1RemSet.cpp class G1Mux2Closure; class G1TriggerClosure; class G1InvokeIfNotTriggeredClosure; class G1UpdateRSOrPushRefOopClosure; #ifdef FURTHER_SPECIALIZED_OOP_OOP_ITERATE_CLOSURES #error "FURTHER_SPECIALIZED_OOP_OOP_ITERATE_CLOSURES already defined." #endif #define FURTHER_SPECIALIZED_OOP_OOP_ITERATE_CLOSURES(f) \ f(G1ParScanHeapEvacClosure,_nv) \ f(G1ParScanClosure,_nv) \ f(G1ParPushHeapRSClosure,_nv) \ f(FilterIntoCSClosure,_nv) \ f(FilterOutOfRegionClosure,_nv) \ f(G1CMOopClosure,_nv) \ f(G1RootRegionScanClosure,_nv) \ f(G1Mux2Closure,_nv) \ f(G1TriggerClosure,_nv) \ f(G1InvokeIfNotTriggeredClosure,_nv) \ f(G1UpdateRSOrPushRefOopClosure,_nv) #ifdef FURTHER_SPECIALIZED_SINCE_SAVE_MARKS_CLOSURES #error "FURTHER_SPECIALIZED_SINCE_SAVE_MARKS_CLOSURES already defined." #endif #define FURTHER_SPECIALIZED_SINCE_SAVE_MARKS_CLOSURES(f) #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1_SPECIALIZED_OOP_CLOSURES_HPP