diff options
| author | daan <daanl@outlook.com> | 2021-11-14 16:51:41 -0800 |
|---|---|---|
| committer | daan <daanl@outlook.com> | 2021-11-14 16:52:10 -0800 |
| commit | f412df7a2b64421e1f1d61fde6055a6ea288e8f5 (patch) | |
| tree | e6679d6dd1258a804b1544d346213d19797a8532 /include/mimalloc-types.h | |
| parent | 5a1c3c8a4a75166cd7c2734fef4bb45d9f865632 (diff) | |
make segment size smaller on 32-bit
Diffstat (limited to 'include/mimalloc-types.h')
| -rw-r--r-- | include/mimalloc-types.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/include/mimalloc-types.h b/include/mimalloc-types.h index 068513b..6899062 100644 --- a/include/mimalloc-types.h +++ b/include/mimalloc-types.h @@ -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 |