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realloc uses remap automatically after remap_threshold

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daanx 2023-05-02 18:25:47 -07:00
parent ac21489ce7
commit 8fffc92e15
9 changed files with 180 additions and 42 deletions
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1
include/mimalloc.h
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@ -353,6 +353,7 @@ typedef enum mi_option_e {
mi_option_arena_reserve, // initial memory size in KiB for arena reservation (1GiB on 64-bit)
mi_option_arena_purge_mult,
mi_option_purge_extend_delay,
mi_option_remap_threshold, // size in KiB after which realloc uses OS in-place remap; use 0 to disable
_mi_option_last,
// legacy option names
mi_option_large_os_pages = mi_option_allow_large_os_pages,

1
include/mimalloc/internal.h
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@ -152,6 +152,7 @@ void _mi_abandoned_reclaim_all(mi_heap_t* heap, mi_segments_tld_t* tld);
void _mi_abandoned_await_readers(void);
mi_block_t* _mi_segment_huge_page_remap(mi_segment_t* segment, mi_page_t* page, mi_block_t* block, size_t newsize, mi_segments_tld_t* tld);
mi_block_t* _mi_segment_huge_page_expand(mi_segment_t* segment, mi_page_t* page, mi_block_t* block, size_t newsize, mi_segments_tld_t* tld);
// "page.c"
void* _mi_malloc_generic(mi_heap_t* heap, size_t size, bool zero, size_t huge_alignment) mi_attr_noexcept mi_attr_malloc;