Mercurial > hg > truffle
view src/share/vm/gc_implementation/includeDB_gc_parNew @ 1166:7b0e9cba0307
6896647: card marks can be deferred too long
Summary: Deferred card marks are now flushed during the gc prologue. Parallel[Scavege,OldGC] and SerialGC no longer defer card marks generated by COMPILER2 as a result of ReduceInitialCardMarks. For these cases, introduced a diagnostic option to defer the card marks, only for the purposes of testing and diagnostics. CMS and G1 continue to defer card marks. Potential performance concern related to single-threaded flushing of deferred card marks in the gc prologue will be addressed in the future.
Reviewed-by: never, johnc
author | ysr |
---|---|
date | Wed, 13 Jan 2010 15:26:39 -0800 |
parents | 5b39c489c39d |
children | c18cbe5936b8 |
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// // Copyright (c) 2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, // CA 95054 USA or visit www.sun.com if you need additional information or // have any questions. // // asParNewGeneration.hpp adaptiveSizePolicy.hpp asParNewGeneration.hpp parNewGeneration.hpp asParNewGeneration.cpp asParNewGeneration.hpp asParNewGeneration.cpp cmsAdaptiveSizePolicy.hpp asParNewGeneration.cpp cmsGCAdaptivePolicyCounters.hpp asParNewGeneration.cpp defNewGeneration.inline.hpp asParNewGeneration.cpp markOop.inline.hpp asParNewGeneration.cpp markSweep.inline.hpp asParNewGeneration.cpp oop.pcgc.inline.hpp asParNewGeneration.cpp parNewGeneration.hpp asParNewGeneration.cpp referencePolicy.hpp asParNewGeneration.cpp spaceDecorator.hpp parCardTableModRefBS.cpp allocation.inline.hpp parCardTableModRefBS.cpp cardTableModRefBS.hpp parCardTableModRefBS.cpp cardTableRS.hpp parCardTableModRefBS.cpp java.hpp parCardTableModRefBS.cpp mutexLocker.hpp parCardTableModRefBS.cpp sharedHeap.hpp parCardTableModRefBS.cpp space.inline.hpp parCardTableModRefBS.cpp universe.hpp parCardTableModRefBS.cpp virtualspace.hpp parGCAllocBuffer.cpp arrayOop.hpp parGCAllocBuffer.cpp oop.inline.hpp parGCAllocBuffer.cpp parGCAllocBuffer.hpp parGCAllocBuffer.cpp sharedHeap.hpp parGCAllocBuffer.hpp allocation.hpp parGCAllocBuffer.hpp globalDefinitions.hpp parGCAllocBuffer.hpp threadLocalAllocBuffer.hpp parNewGeneration.cpp adaptiveSizePolicy.hpp parNewGeneration.cpp ageTable.hpp parNewGeneration.cpp concurrentMarkSweepGeneration.hpp parNewGeneration.cpp copy.hpp parNewGeneration.cpp defNewGeneration.inline.hpp parNewGeneration.cpp genCollectedHeap.hpp parNewGeneration.cpp genOopClosures.inline.hpp parNewGeneration.cpp generation.hpp parNewGeneration.cpp generation.inline.hpp parNewGeneration.cpp globalDefinitions.hpp parNewGeneration.cpp handles.hpp parNewGeneration.cpp handles.inline.hpp parNewGeneration.cpp java.hpp parNewGeneration.cpp objArrayOop.hpp parNewGeneration.cpp oop.inline.hpp parNewGeneration.cpp oop.pcgc.inline.hpp parNewGeneration.cpp parGCAllocBuffer.hpp parNewGeneration.cpp parNewGeneration.hpp parNewGeneration.cpp parOopClosures.inline.hpp parNewGeneration.cpp referencePolicy.hpp parNewGeneration.cpp resourceArea.hpp parNewGeneration.cpp sharedHeap.hpp parNewGeneration.cpp space.hpp parNewGeneration.cpp spaceDecorator.hpp parNewGeneration.cpp thread.hpp parNewGeneration.cpp workgroup.hpp parNewGeneration.hpp defNewGeneration.hpp parNewGeneration.hpp parGCAllocBuffer.hpp parNewGeneration.hpp taskqueue.hpp parOopClosures.hpp genOopClosures.hpp parOopClosures.inline.hpp parNewGeneration.hpp parOopClosures.inline.hpp parOopClosures.hpp