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daanx 2025-02-08 09:53:00 -08:00
parent 2017181a69
commit 2048fa2d17
2 changed files with 4 additions and 3 deletions
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4
include/mimalloc/types.h
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@ -99,7 +99,7 @@ terms of the MIT license. A copy of the license can be found in the file
#define MI_ENCODE_FREELIST 1
#endif
// Enable large pages for objects between 64KiB and 256KiB.
// Enable large pages for objects between 64KiB and 512KiB.
// Disabled by default as for many workloads the block sizes above 64 KiB are quite random which can lead to too many partially used large pages.
#ifndef MI_ENABLE_LARGE_PAGES
#define MI_ENABLE_LARGE_PAGES 0
@ -342,7 +342,7 @@ typedef struct mi_page_s {
#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_LARGE_MAX_OBJ_SIZE (MI_LARGE_PAGE_SIZE/8) // <= 256 KiB // note: this must be a nice power of 2 or we get rounding issues with `_mi_bin`
#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/8) // <= 64 KiB
#define MI_LARGE_MAX_OBJ_SIZE MI_MEDIUM_MAX_OBJ_SIZE // <= 64 KiB // note: this must be a nice power of 2 or we get rounding issues with `_mi_bin`

3
src/bitmap.c
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@ -184,7 +184,7 @@ static inline bool mi_bfield_atomic_try_clear_mask(_Atomic(mi_bfield_t)* b, mi_b
return mi_bfield_atomic_try_clear_mask_of(b, mask, expect, all_clear);
}
/*
// Tries to clear a bit atomically. Returns `true` if the bit transitioned from 1 to 0
// and `false` otherwise leaving the bfield `b` as-is.
// `all_clear` is set to true if the new bfield became zero (and false otherwise)
@ -203,6 +203,7 @@ static inline bool mi_bfield_atomic_try_clear8(_Atomic(mi_bfield_t)*b, size_t id
const mi_bfield_t mask = ((mi_bfield_t)0xFF)<<idx;
return mi_bfield_atomic_try_clear_mask(b, mask, all_clear);
}
*/
// Try to clear a full field of bits atomically, and return true all bits transitioned from all 1's to 0's.
// and false otherwise leaving the bit field as-is.