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increase MAX_OBJ_SLICES to a full chunk (32MiB)

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daanx 2024-12-03 17:27:43 -08:00
parent 3fc2c8e279
commit 8d9c725482
7 changed files with 230 additions and 102 deletions
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15
include/mimalloc/internal.h
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@ -339,6 +339,21 @@ static inline uint8_t* _mi_align_up_ptr(void* p, size_t alignment) {
}
static inline uintptr_t _mi_align_down(uintptr_t sz, size_t alignment) {
mi_assert_internal(alignment != 0);
uintptr_t mask = alignment - 1;
if ((alignment & mask) == 0) { // power of two?
return (sz & ~mask);
}
else {
return ((sz / alignment) * alignment);
}
}
static inline void* mi_align_down_ptr(void* p, size_t alignment) {
return (void*)_mi_align_down((uintptr_t)p, alignment);
}
// Divide upwards: `s <= _mi_divide_up(s,d)*d < s+d`.
static inline uintptr_t _mi_divide_up(uintptr_t size, size_t divider) {
mi_assert_internal(divider != 0);

3
include/mimalloc/types.h
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@ -128,8 +128,7 @@ terms of the MIT license. A copy of the license can be found in the file
#define MI_ARENA_SLICE_ALIGN (MI_ARENA_SLICE_SIZE)
#define MI_ARENA_MIN_OBJ_SLICES (1)
#define MI_ARENA_MAX_OBJ_SLICES (MI_SIZE_BITS) // for now, cannot cross bit field boundaries.. todo: make it at least MI_BITMAP_CHUNK_BITS ? (16 MiB)
// #define MI_ARENA_MAX_OBJ_BLOCKS (MI_BITMAP_CHUNK_BITS) // for now, cannot cross chunk boundaries
#define MI_ARENA_MAX_OBJ_SLICES (MI_BITMAP_CHUNK_BITS) // 32 MiB (for now, cannot cross chunk boundaries)
#define MI_ARENA_MIN_OBJ_SIZE (MI_ARENA_MIN_OBJ_SLICES * MI_ARENA_SLICE_SIZE)
#define MI_ARENA_MAX_OBJ_SIZE (MI_ARENA_MAX_OBJ_SLICES * MI_ARENA_SLICE_SIZE)