Mercurial > hg > graal-jvmci-8
comparison src/share/vm/gc_implementation/g1/heapRegion.hpp @ 17755:96b1c2e06e25
8027295: Free CSet takes ~50% of young pause time
Summary: Improve fast card cache iteration and avoid taking locks when freeing the collection set.
Reviewed-by: brutisso
| author | tschatzl |
|---|---|
| date | Mon, 24 Mar 2014 15:30:36 +0100 |
| parents | 40136aa2cdb1 |
| children | 8ee855b4e667 |
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| 17754:d7070f371770 | 17755:96b1c2e06e25 |
|---|---|
| 594 | 594 |
| 595 // Allows logical separation between objects allocated before and after. | 595 // Allows logical separation between objects allocated before and after. |
| 596 void save_marks(); | 596 void save_marks(); |
| 597 | 597 |
| 598 // Reset HR stuff to default values. | 598 // Reset HR stuff to default values. |
| 599 void hr_clear(bool par, bool clear_space); | 599 void hr_clear(bool par, bool clear_space, bool locked = false); |
| 600 void par_clear(); | 600 void par_clear(); |
| 601 | 601 |
| 602 // Get the start of the unmarked area in this region. | 602 // Get the start of the unmarked area in this region. |
| 603 HeapWord* prev_top_at_mark_start() const { return _prev_top_at_mark_start; } | 603 HeapWord* prev_top_at_mark_start() const { return _prev_top_at_mark_start; } |
| 604 HeapWord* next_top_at_mark_start() const { return _next_top_at_mark_start; } | 604 HeapWord* next_top_at_mark_start() const { return _next_top_at_mark_start; } |