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reduce medium page block size to 64k to reducemem usage

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Daan Leijen 2025-03-03 20:50:21 -08:00
parent ce74c905f8
commit c18a5537dc
3 changed files with 4 additions and 4 deletions
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4
include/mimalloc/types.h
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@ -343,10 +343,10 @@ typedef struct mi_page_s {
// The max object size are checked to not waste more than 12.5% internally over the page sizes.
#define MI_SMALL_MAX_OBJ_SIZE ((MI_SMALL_PAGE_SIZE-MI_PAGE_INFO_SIZE)/8) // < ~8 KiB
#if MI_ENABLE_LARGE_PAGES
#define MI_MEDIUM_MAX_OBJ_SIZE ((MI_MEDIUM_PAGE_SIZE-MI_PAGE_INFO_SIZE)/8) // < 64 KiB
#define MI_MEDIUM_MAX_OBJ_SIZE ((MI_MEDIUM_PAGE_SIZE-MI_PAGE_INFO_SIZE)/8) // < ~64 KiB
#define MI_LARGE_MAX_OBJ_SIZE (MI_LARGE_PAGE_SIZE/8) // <= 512KiB // note: this must be a nice power of 2 or we get rounding issues with `_mi_bin`
#else
#define MI_MEDIUM_MAX_OBJ_SIZE (MI_MEDIUM_PAGE_SIZE/4) // <= 128 KiB
#define MI_MEDIUM_MAX_OBJ_SIZE (MI_MEDIUM_PAGE_SIZE/8) // <= 64 KiB
#define MI_LARGE_MAX_OBJ_SIZE MI_MEDIUM_MAX_OBJ_SIZE // note: this must be a nice power of 2 or we get rounding issues with `_mi_bin`
#endif
#define MI_LARGE_MAX_OBJ_WSIZE (MI_LARGE_MAX_OBJ_SIZE/MI_SIZE_SIZE)