diff options
| -rw-r--r-- | ChangeLog | 9 | ||||
| -rw-r--r-- | gc.c | 11 |
2 files changed, 18 insertions, 2 deletions
@@ -1,3 +1,12 @@ +Thu May 15 18:42:49 2014 Koichi Sasada <ko1@atdot.net> + + * gc.c: introduce macros to remove magic number. + + GC_HEAP_FREE_SLOTS_MIN_RATIO = 0.3: guarantee minimum empty slots + ratio after sweep. + GC_HEAP_FREE_SLOTS_MAX_RATIO = 0.8: allow to free pages 0.2 (= 1-0.8) + of current existing slots. + Thu May 15 17:32:51 2014 Hiroshi Shirosaki <h.shirosaki@gmail.com> * thread_win32.c (rb_w32_stack_overflow_handler): use Structured @@ -116,6 +116,13 @@ rb_gc_guarded_ptr_val(volatile VALUE *ptr, VALUE val) #define GC_HEAP_OLDOBJECT_LIMIT_FACTOR 2.0 #endif +#ifndef GC_HEAP_FREE_SLOTS_MIN_RATIO +#define GC_HEAP_FREE_SLOTS_MIN_RATIO 0.3 +#endif +#ifndef GC_HEAP_FREE_SLOTS_MAX_RATIO +#define GC_HEAP_FREE_SLOTS_MAX_RATIO 0.8 +#endif + #ifndef GC_MALLOC_LIMIT_MIN #define GC_MALLOC_LIMIT_MIN (16 * 1024 * 1024 /* 16MB */) #endif @@ -2902,11 +2909,11 @@ gc_before_sweep(rb_objspace_t *objspace) heap_pages_swept_slots = 0; total_limit_slot = objspace_total_slot(objspace); - heap_pages_min_free_slots = (size_t)(total_limit_slot * 0.30); + heap_pages_min_free_slots = (size_t)(total_limit_slot * GC_HEAP_FREE_SLOTS_MIN_RATIO); if (heap_pages_min_free_slots < gc_params.heap_free_slots) { heap_pages_min_free_slots = gc_params.heap_free_slots; } - heap_pages_max_free_slots = (size_t)(total_limit_slot * 0.80); + heap_pages_max_free_slots = (size_t)(total_limit_slot * GC_HEAP_FREE_SLOTS_MAX_RATIO); if (heap_pages_max_free_slots < gc_params.heap_init_slots) { heap_pages_max_free_slots = gc_params.heap_init_slots; } |