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add ability to abandon segments after a threshold

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daanx 2024-10-09 21:24:20 -07:00
parent 4913c2c65b
commit 723869014f
7 changed files with 108 additions and 4 deletions
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1
include/mimalloc.h
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@ -369,6 +369,7 @@ typedef enum mi_option_e {
mi_option_visit_abandoned, // allow visiting heap blocks from abandoned threads (=0)
mi_option_debug_guarded_min, // only used when building with MI_DEBUG_GUARDED: minimal rounded object size for guarded objects (=0)
mi_option_debug_guarded_max, // only used when building with MI_DEBUG_GUARDED: maximal rounded object size for guarded objects (=0)
mi_option_target_segments_per_thread, // experimental (=0)
_mi_option_last,
// legacy option names
mi_option_large_os_pages = mi_option_allow_large_os_pages,

2
include/mimalloc/internal.h
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@ -175,6 +175,8 @@ void _mi_page_retire(mi_page_t* page) mi_attr_noexcept; /
void _mi_page_unfull(mi_page_t* page);
void _mi_page_free(mi_page_t* page, mi_page_queue_t* pq, bool force); // free the page
void _mi_page_abandon(mi_page_t* page, mi_page_queue_t* pq); // abandon the page, to be picked up by another thread...
void _mi_page_force_abandon(mi_page_t* page);
void _mi_heap_delayed_free_all(mi_heap_t* heap);
bool _mi_heap_delayed_free_partial(mi_heap_t* heap);
void _mi_heap_collect_retired(mi_heap_t* heap, bool force);

2
include/mimalloc/types.h
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@ -200,7 +200,7 @@ typedef int32_t mi_ssize_t;
#define MI_SMALL_OBJ_SIZE_MAX (MI_SMALL_PAGE_SIZE/4) // 8KiB on 64-bit
#define MI_MEDIUM_OBJ_SIZE_MAX (MI_MEDIUM_PAGE_SIZE/4) // 128KiB on 64-bit
#define MI_MEDIUM_OBJ_WSIZE_MAX (MI_MEDIUM_OBJ_SIZE_MAX/MI_INTPTR_SIZE)
#define MI_LARGE_OBJ_SIZE_MAX (MI_SEGMENT_SIZE/2) // 32MiB on 64-bit
#define MI_LARGE_OBJ_SIZE_MAX (MI_SEGMENT_SIZE/2) // 16MiB on 64-bit
#define MI_LARGE_OBJ_WSIZE_MAX (MI_LARGE_OBJ_SIZE_MAX/MI_INTPTR_SIZE)
// Maximum number of size classes. (spaced exponentially in 12.5% increments)