Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/memory/space.hpp
src/share/vm/memory/space.hpp
- changeset 873
- 122d10c82f3f
- parent 791
- 1ee8caae33af
- child 952
- e9be0e04635a
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| 849:348be627a148 | 873:122d10c82f3f |
|---|---|
| 419 // MarkSweep support phase4 | 419 // MarkSweep support phase4 |
| 420 virtual void compact(); | 420 virtual void compact(); |
| 421 | 421 |
| 422 // The maximum percentage of objects that can be dead in the compacted | 422 // The maximum percentage of objects that can be dead in the compacted |
| 423 // live part of a compacted space ("deadwood" support.) | 423 // live part of a compacted space ("deadwood" support.) |
| 424 virtual int allowed_dead_ratio() const { return 0; }; | 424 virtual size_t allowed_dead_ratio() const { return 0; }; |
| 425 | 425 |
| 426 // Some contiguous spaces may maintain some data structures that should | 426 // Some contiguous spaces may maintain some data structures that should |
| 427 // be updated whenever an allocation crosses a boundary. This function | 427 // be updated whenever an allocation crosses a boundary. This function |
| 428 // returns the first such boundary. | 428 // returns the first such boundary. |
| 429 // (The default implementation returns the end of the space, so the | 429 // (The default implementation returns the end of the space, so the |
| 505 int invocations = SharedHeap::heap()->perm_gen()->stat_record()->invocations;\ | 505 int invocations = SharedHeap::heap()->perm_gen()->stat_record()->invocations;\ |
| 506 bool skip_dead = ((invocations % MarkSweepAlwaysCompactCount) != 0); \ | 506 bool skip_dead = ((invocations % MarkSweepAlwaysCompactCount) != 0); \ |
| 507 \ | 507 \ |
| 508 size_t allowed_deadspace = 0; \ | 508 size_t allowed_deadspace = 0; \ |
| 509 if (skip_dead) { \ | 509 if (skip_dead) { \ |
| 510 int ratio = allowed_dead_ratio(); \ | 510 const size_t ratio = allowed_dead_ratio(); \ |
| 511 allowed_deadspace = (capacity() * ratio / 100) / HeapWordSize; \ | 511 allowed_deadspace = (capacity() * ratio / 100) / HeapWordSize; \ |
| 512 } \ | 512 } \ |
| 513 \ | 513 \ |
| 514 HeapWord* q = bottom(); \ | 514 HeapWord* q = bottom(); \ |
| 515 HeapWord* t = scan_limit(); \ | 515 HeapWord* t = scan_limit(); \ |
| 1077 | 1077 |
| 1078 class TenuredSpace: public OffsetTableContigSpace { | 1078 class TenuredSpace: public OffsetTableContigSpace { |
| 1079 friend class VMStructs; | 1079 friend class VMStructs; |
| 1080 protected: | 1080 protected: |
| 1081 // Mark sweep support | 1081 // Mark sweep support |
| 1082 int allowed_dead_ratio() const; | 1082 size_t allowed_dead_ratio() const; |
| 1083 public: | 1083 public: |
| 1084 // Constructor | 1084 // Constructor |
| 1085 TenuredSpace(BlockOffsetSharedArray* sharedOffsetArray, | 1085 TenuredSpace(BlockOffsetSharedArray* sharedOffsetArray, |
| 1086 MemRegion mr) : | 1086 MemRegion mr) : |
| 1087 OffsetTableContigSpace(sharedOffsetArray, mr) {} | 1087 OffsetTableContigSpace(sharedOffsetArray, mr) {} |
| 1092 | 1092 |
| 1093 class ContigPermSpace: public OffsetTableContigSpace { | 1093 class ContigPermSpace: public OffsetTableContigSpace { |
| 1094 friend class VMStructs; | 1094 friend class VMStructs; |
| 1095 protected: | 1095 protected: |
| 1096 // Mark sweep support | 1096 // Mark sweep support |
| 1097 int allowed_dead_ratio() const; | 1097 size_t allowed_dead_ratio() const; |
| 1098 public: | 1098 public: |
| 1099 // Constructor | 1099 // Constructor |
| 1100 ContigPermSpace(BlockOffsetSharedArray* sharedOffsetArray, MemRegion mr) : | 1100 ContigPermSpace(BlockOffsetSharedArray* sharedOffsetArray, MemRegion mr) : |
| 1101 OffsetTableContigSpace(sharedOffsetArray, mr) {} | 1101 OffsetTableContigSpace(sharedOffsetArray, mr) {} |
| 1102 }; | 1102 }; |
