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make segment size smaller on 32-bit

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daan 2021-11-14 16:51:41 -08:00
parent 5a1c3c8a4a
commit f412df7a2b
1 changed files with 7 additions and 2 deletions
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9
include/mimalloc-types.h
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@ -128,9 +128,14 @@ typedef int32_t mi_ssize_t;
// ------------------------------------------------------
// Main tuning parameters for segment and page sizes
// Sizes for 64-bit, divide by two for 32-bit
#define MI_SEGMENT_SLICE_SHIFT (13 + MI_INTPTR_SHIFT) // 64KiB
// Sizes for 64-bit (usually divide by two for 32-bit)
#define MI_SEGMENT_SLICE_SHIFT (13 + MI_INTPTR_SHIFT) // 64KiB (32KiB on 32-bit)
#if MI_INTPTR_SIZE > 4
#define MI_SEGMENT_SHIFT (10 + MI_SEGMENT_SLICE_SHIFT) // 64MiB
#else
#define MI_SEGMENT_SHIFT ( 7 + MI_SEGMENT_SLICE_SHIFT) // 4MiB on 32-bit
#endif
#define MI_SMALL_PAGE_SHIFT (MI_SEGMENT_SLICE_SHIFT) // 64KiB
#define MI_MEDIUM_PAGE_SHIFT ( 3 + MI_SMALL_PAGE_SHIFT) // 512KiB