662 // The space that this buffer allocates into.
663 CompactibleFreeListSpace* _cfls;
664
665 // Our local free lists.
666 AdaptiveFreeList<FreeChunk> _indexedFreeList[CompactibleFreeListSpace::IndexSetSize];
667
668 // Initialized from a command-line arg.
669
670 // Allocation statistics in support of dynamic adjustment of
671 // #blocks to claim per get_from_global_pool() call below.
672 static AdaptiveWeightedAverage
673 _blocks_to_claim [CompactibleFreeListSpace::IndexSetSize];
674 static size_t _global_num_blocks [CompactibleFreeListSpace::IndexSetSize];
675 static uint _global_num_workers[CompactibleFreeListSpace::IndexSetSize];
676 size_t _num_blocks [CompactibleFreeListSpace::IndexSetSize];
677
678 // Internal work method
679 void get_from_global_pool(size_t word_sz, AdaptiveFreeList<FreeChunk>* fl);
680
681 public:
682 CFLS_LAB(CompactibleFreeListSpace* cfls);
683
684 // Allocate and return a block of the given size, or else return NULL.
685 HeapWord* alloc(size_t word_sz);
686
687 // Return any unused portions of the buffer to the global pool.
688 void retire(int tid);
689
690 // Dynamic OldPLABSize sizing
691 static void compute_desired_plab_size();
692 // When the settings are modified from default static initialization
693 static void modify_initialization(size_t n, unsigned wt);
694 };
695
696 size_t PromotionInfo::refillSize() const {
697 const size_t CMSSpoolBlockSize = 256;
698 const size_t sz = heap_word_size(sizeof(SpoolBlock) + sizeof(markOop)
699 * CMSSpoolBlockSize);
700 return CompactibleFreeListSpace::adjustObjectSize(sz);
701 }
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662 // The space that this buffer allocates into.
663 CompactibleFreeListSpace* _cfls;
664
665 // Our local free lists.
666 AdaptiveFreeList<FreeChunk> _indexedFreeList[CompactibleFreeListSpace::IndexSetSize];
667
668 // Initialized from a command-line arg.
669
670 // Allocation statistics in support of dynamic adjustment of
671 // #blocks to claim per get_from_global_pool() call below.
672 static AdaptiveWeightedAverage
673 _blocks_to_claim [CompactibleFreeListSpace::IndexSetSize];
674 static size_t _global_num_blocks [CompactibleFreeListSpace::IndexSetSize];
675 static uint _global_num_workers[CompactibleFreeListSpace::IndexSetSize];
676 size_t _num_blocks [CompactibleFreeListSpace::IndexSetSize];
677
678 // Internal work method
679 void get_from_global_pool(size_t word_sz, AdaptiveFreeList<FreeChunk>* fl);
680
681 public:
682 static const int defaultDynamicOldPLABSize = 16;
683 static const int defaultStaticOldPLABSize = 50;
684
685 CFLS_LAB(CompactibleFreeListSpace* cfls);
686
687 // Allocate and return a block of the given size, or else return NULL.
688 HeapWord* alloc(size_t word_sz);
689
690 // Return any unused portions of the buffer to the global pool.
691 void retire(int tid);
692
693 // Dynamic OldPLABSize sizing
694 static void compute_desired_plab_size();
695 // When the settings are modified from default static initialization
696 static void modify_initialization(size_t n, unsigned wt);
697 };
698
699 size_t PromotionInfo::refillSize() const {
700 const size_t CMSSpoolBlockSize = 256;
701 const size_t sz = heap_word_size(sizeof(SpoolBlock) + sizeof(markOop)
702 * CMSSpoolBlockSize);
703 return CompactibleFreeListSpace::adjustObjectSize(sz);
704 }
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