Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/memory/threadLocalAllocBuffer.hpp
src/share/vm/memory/threadLocalAllocBuffer.hpp
- changeset 3052
- 1af104d6cf99
- parent 2423
- b1a2afa37ec4
- child 3900
- d2a62e0f25eb
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| 3051:11211f7cb5a0 | 3052:1af104d6cf99 |
|---|---|
| 122 inline HeapWord* allocate(size_t size); | 122 inline HeapWord* allocate(size_t size); |
| 123 | 123 |
| 124 // Reserve space at the end of TLAB | 124 // Reserve space at the end of TLAB |
| 125 static size_t end_reserve() { | 125 static size_t end_reserve() { |
| 126 int reserve_size = typeArrayOopDesc::header_size(T_INT); | 126 int reserve_size = typeArrayOopDesc::header_size(T_INT); |
| 127 if (AllocatePrefetchStyle == 3) { | 127 return MAX2(reserve_size, VM_Version::reserve_for_allocation_prefetch()); |
| 128 // BIS is used to prefetch - we need a space for it. | |
| 129 // +1 for rounding up to next cache line +1 to be safe | |
| 130 int lines = AllocatePrefetchLines + 2; | |
| 131 int step_size = AllocatePrefetchStepSize; | |
| 132 int distance = AllocatePrefetchDistance; | |
| 133 int prefetch_end = (distance + step_size*lines)/(int)HeapWordSize; | |
| 134 reserve_size = MAX2(reserve_size, prefetch_end); | |
| 135 } | |
| 136 return reserve_size; | |
| 137 } | 128 } |
| 138 static size_t alignment_reserve() { return align_object_size(end_reserve()); } | 129 static size_t alignment_reserve() { return align_object_size(end_reserve()); } |
| 139 static size_t alignment_reserve_in_bytes() { return alignment_reserve() * HeapWordSize; } | 130 static size_t alignment_reserve_in_bytes() { return alignment_reserve() * HeapWordSize; } |
| 140 | 131 |
| 141 // Return tlab size or remaining space in eden such that the | 132 // Return tlab size or remaining space in eden such that the |
