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src/hotspot/share/gc/g1/g1CollectedHeap.hpp

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rev 49184 : imported patch 8197569-refactor-eager-reclaim


 554     assert(_g1mm != NULL, "should have been initialized");
 555     return _g1mm;
 556   }
 557 
 558   // Expand the garbage-first heap by at least the given size (in bytes!).
 559   // Returns true if the heap was expanded by the requested amount;
 560   // false otherwise.
 561   // (Rounds up to a HeapRegion boundary.)
 562   bool expand(size_t expand_bytes, WorkGang* pretouch_workers = NULL, double* expand_time_ms = NULL);
 563 
 564   // Returns the PLAB statistics for a given destination.
 565   inline G1EvacStats* alloc_buffer_stats(InCSetState dest);
 566 
 567   // Determines PLAB size for a given destination.
 568   inline size_t desired_plab_sz(InCSetState dest);
 569 
 570   // Do anything common to GC's.
 571   void gc_prologue(bool full);
 572   void gc_epilogue(bool full);
 573 



 574   // Modify the reclaim candidate set and test for presence.
 575   // These are only valid for starts_humongous regions.
 576   inline void set_humongous_reclaim_candidate(uint region, bool value);
 577   inline bool is_humongous_reclaim_candidate(uint region);
 578 
 579   // Remove from the reclaim candidate set.  Also remove from the
 580   // collection set so that later encounters avoid the slow path.
 581   inline void set_humongous_is_live(oop obj);
 582 
 583   // Register the given region to be part of the collection set.
 584   inline void register_humongous_region_with_cset(uint index);
 585   // Register regions with humongous objects (actually on the start region) in
 586   // the in_cset_fast_test table.
 587   void register_humongous_regions_with_cset();
 588   // We register a region with the fast "in collection set" test. We
 589   // simply set to true the array slot corresponding to this region.
 590   void register_young_region_with_cset(HeapRegion* r) {
 591     _in_cset_fast_test.set_in_young(r->hrm_index());
 592   }
 593   void register_old_region_with_cset(HeapRegion* r) {




 554     assert(_g1mm != NULL, "should have been initialized");
 555     return _g1mm;
 556   }
 557 
 558   // Expand the garbage-first heap by at least the given size (in bytes!).
 559   // Returns true if the heap was expanded by the requested amount;
 560   // false otherwise.
 561   // (Rounds up to a HeapRegion boundary.)
 562   bool expand(size_t expand_bytes, WorkGang* pretouch_workers = NULL, double* expand_time_ms = NULL);
 563 
 564   // Returns the PLAB statistics for a given destination.
 565   inline G1EvacStats* alloc_buffer_stats(InCSetState dest);
 566 
 567   // Determines PLAB size for a given destination.
 568   inline size_t desired_plab_sz(InCSetState dest);
 569 
 570   // Do anything common to GC's.
 571   void gc_prologue(bool full);
 572   void gc_epilogue(bool full);
 573 
 574   // Does the given region fulfill remembered set based eager reclaim candidate requirements?
 575   bool is_potential_eager_reclaim_candidate(HeapRegion* r) const;
 576 
 577   // Modify the reclaim candidate set and test for presence.
 578   // These are only valid for starts_humongous regions.
 579   inline void set_humongous_reclaim_candidate(uint region, bool value);
 580   inline bool is_humongous_reclaim_candidate(uint region);
 581 
 582   // Remove from the reclaim candidate set.  Also remove from the
 583   // collection set so that later encounters avoid the slow path.
 584   inline void set_humongous_is_live(oop obj);
 585 
 586   // Register the given region to be part of the collection set.
 587   inline void register_humongous_region_with_cset(uint index);
 588   // Register regions with humongous objects (actually on the start region) in
 589   // the in_cset_fast_test table.
 590   void register_humongous_regions_with_cset();
 591   // We register a region with the fast "in collection set" test. We
 592   // simply set to true the array slot corresponding to this region.
 593   void register_young_region_with_cset(HeapRegion* r) {
 594     _in_cset_fast_test.set_in_young(r->hrm_index());
 595   }
 596   void register_old_region_with_cset(HeapRegion* r) {


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