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6819065: G1: eliminate high serial card table clearing time

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Reviewed-by: iveresov, tonyp
This commit is contained in:
Andrey Petrusenko 2009-05-19 04:05:31 -07:00
parent 4f6c7e4a14
commit b7eda61fb6
5 changed files with 126 additions and 4 deletions
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11
hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
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@ -158,6 +158,7 @@ class G1CollectedHeap : public SharedHeap {
friend class RegionSorter;
friend class CountRCClosure;
friend class EvacPopObjClosure;
friend class G1ParCleanupCTTask;
// Other related classes.
friend class G1MarkSweep;
@ -1191,6 +1192,16 @@ public:
ConcurrentMark* concurrent_mark() const { return _cm; }
ConcurrentG1Refine* concurrent_g1_refine() const { return _cg1r; }
// The dirty cards region list is used to record a subset of regions
// whose cards need clearing. The list if populated during the
// remembered set scanning and drained during the card table
// cleanup. Although the methods are reentrant, population/draining
// phases must not overlap. For synchronization purposes the last
// element on the list points to itself.
HeapRegion* _dirty_cards_region_list;
void push_dirty_cards_region(HeapRegion* hr);
HeapRegion* pop_dirty_cards_region();
public:
void stop_conc_gc_threads();