40 return &_survivor_evac_stats;
41 case InCSetState::Old:
42 return &_old_evac_stats;
43 default:
44 ShouldNotReachHere();
45 return NULL; // Keep some compilers happy
46 }
47 }
48
49 size_t G1CollectedHeap::desired_plab_sz(InCSetState dest) {
50 size_t gclab_word_size = alloc_buffer_stats(dest)->desired_plab_sz(G1CollectedHeap::heap()->workers()->active_workers());
51 // Prevent humongous PLAB sizes for two reasons:
52 // * PLABs are allocated using a similar paths as oops, but should
53 // never be in a humongous region
54 // * Allowing humongous PLABs needlessly churns the region free lists
55 return MIN2(_humongous_object_threshold_in_words, gclab_word_size);
56 }
57
58 // Inline functions for G1CollectedHeap
59
60 inline AllocationContextStats& G1CollectedHeap::allocation_context_stats() {
61 return _allocation_context_stats;
62 }
63
64 // Return the region with the given index. It assumes the index is valid.
65 inline HeapRegion* G1CollectedHeap::region_at(uint index) const { return _hrm.at(index); }
66
67 inline HeapRegion* G1CollectedHeap::next_region_in_humongous(HeapRegion* hr) const {
68 return _hrm.next_region_in_humongous(hr);
69 }
70
71 inline uint G1CollectedHeap::addr_to_region(HeapWord* addr) const {
72 assert(is_in_reserved(addr),
73 "Cannot calculate region index for address " PTR_FORMAT " that is outside of the heap [" PTR_FORMAT ", " PTR_FORMAT ")",
74 p2i(addr), p2i(reserved_region().start()), p2i(reserved_region().end()));
75 return (uint)(pointer_delta(addr, reserved_region().start(), sizeof(uint8_t)) >> HeapRegion::LogOfHRGrainBytes);
76 }
77
78 inline HeapWord* G1CollectedHeap::bottom_addr_for_region(uint index) const {
79 return _hrm.reserved().start() + index * HeapRegion::GrainWords;
80 }
81
82 template <class T>
83 inline HeapRegion* G1CollectedHeap::heap_region_containing(const T addr) const {
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40 return &_survivor_evac_stats;
41 case InCSetState::Old:
42 return &_old_evac_stats;
43 default:
44 ShouldNotReachHere();
45 return NULL; // Keep some compilers happy
46 }
47 }
48
49 size_t G1CollectedHeap::desired_plab_sz(InCSetState dest) {
50 size_t gclab_word_size = alloc_buffer_stats(dest)->desired_plab_sz(G1CollectedHeap::heap()->workers()->active_workers());
51 // Prevent humongous PLAB sizes for two reasons:
52 // * PLABs are allocated using a similar paths as oops, but should
53 // never be in a humongous region
54 // * Allowing humongous PLABs needlessly churns the region free lists
55 return MIN2(_humongous_object_threshold_in_words, gclab_word_size);
56 }
57
58 // Inline functions for G1CollectedHeap
59
60 // Return the region with the given index. It assumes the index is valid.
61 inline HeapRegion* G1CollectedHeap::region_at(uint index) const { return _hrm.at(index); }
62
63 inline HeapRegion* G1CollectedHeap::next_region_in_humongous(HeapRegion* hr) const {
64 return _hrm.next_region_in_humongous(hr);
65 }
66
67 inline uint G1CollectedHeap::addr_to_region(HeapWord* addr) const {
68 assert(is_in_reserved(addr),
69 "Cannot calculate region index for address " PTR_FORMAT " that is outside of the heap [" PTR_FORMAT ", " PTR_FORMAT ")",
70 p2i(addr), p2i(reserved_region().start()), p2i(reserved_region().end()));
71 return (uint)(pointer_delta(addr, reserved_region().start(), sizeof(uint8_t)) >> HeapRegion::LogOfHRGrainBytes);
72 }
73
74 inline HeapWord* G1CollectedHeap::bottom_addr_for_region(uint index) const {
75 return _hrm.reserved().start() + index * HeapRegion::GrainWords;
76 }
77
78 template <class T>
79 inline HeapRegion* G1CollectedHeap::heap_region_containing(const T addr) const {
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