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daan 2020-09-03 15:04:40 -07:00
parent 7058e501cb
commit f6109765d8
3 changed files with 10 additions and 10 deletions
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2
include/mimalloc-types.h
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@ -122,7 +122,7 @@ terms of the MIT license. A copy of the license can be found in the file
#define MI_MEDIUM_OBJ_SIZE_MAX (MI_MEDIUM_PAGE_SIZE/4) // 128kb on 64-bit #define MI_MEDIUM_OBJ_SIZE_MAX (MI_MEDIUM_PAGE_SIZE/4) // 128kb on 64-bit
#define MI_MEDIUM_OBJ_WSIZE_MAX (MI_MEDIUM_OBJ_SIZE_MAX/MI_INTPTR_SIZE) // 64kb on 64-bit #define MI_MEDIUM_OBJ_WSIZE_MAX (MI_MEDIUM_OBJ_SIZE_MAX/MI_INTPTR_SIZE) // 64kb on 64-bit
#define MI_LARGE_OBJ_SIZE_MAX (MI_SEGMENT_SIZE/2) // 32mb on 64-bit #define MI_LARGE_OBJ_SIZE_MAX (MI_SEGMENT_SIZE/2) // 4mb on 64-bit
#define MI_LARGE_OBJ_WSIZE_MAX (MI_LARGE_OBJ_SIZE_MAX/MI_INTPTR_SIZE) #define MI_LARGE_OBJ_WSIZE_MAX (MI_LARGE_OBJ_SIZE_MAX/MI_INTPTR_SIZE)
#define MI_HUGE_OBJ_SIZE_MAX (2*MI_INTPTR_SIZE*MI_SEGMENT_SIZE) // (must match MI_REGION_MAX_ALLOC_SIZE in memory.c) #define MI_HUGE_OBJ_SIZE_MAX (2*MI_INTPTR_SIZE*MI_SEGMENT_SIZE) // (must match MI_REGION_MAX_ALLOC_SIZE in memory.c)

8
src/arena.c
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@ -8,7 +8,7 @@ terms of the MIT license. A copy of the license can be found in the file
/* ---------------------------------------------------------------------------- /* ----------------------------------------------------------------------------
"Arenas" are fixed area's of OS memory from which we can allocate "Arenas" are fixed area's of OS memory from which we can allocate
large blocks (>= MI_ARENA_BLOCK_SIZE, 32MiB). large blocks (>= MI_ARENA_BLOCK_SIZE, 8MiB).
In contrast to the rest of mimalloc, the arenas are shared between In contrast to the rest of mimalloc, the arenas are shared between
threads and need to be accessed using atomic operations. threads and need to be accessed using atomic operations.
@ -55,9 +55,9 @@ bool _mi_os_commit(void* p, size_t size, bool* is_zero, mi_stats_t* stats);
// size in count of arena blocks. // size in count of arena blocks.
typedef uintptr_t mi_block_info_t; typedef uintptr_t mi_block_info_t;
#define MI_SEGMENT_ALIGN MI_SEGMENT_SIZE #define MI_SEGMENT_ALIGN MI_SEGMENT_SIZE
#define MI_ARENA_BLOCK_SIZE MI_SEGMENT_ALIGN // 64MiB #define MI_ARENA_BLOCK_SIZE MI_SEGMENT_ALIGN // 8MiB
#define MI_ARENA_MAX_OBJ_SIZE (MI_BITMAP_FIELD_BITS * MI_ARENA_BLOCK_SIZE) // 4GiB #define MI_ARENA_MAX_OBJ_SIZE (MI_BITMAP_FIELD_BITS * MI_ARENA_BLOCK_SIZE) // 512MiB
#define MI_ARENA_MIN_OBJ_SIZE (MI_ARENA_BLOCK_SIZE/2) // 32MiB #define MI_ARENA_MIN_OBJ_SIZE (MI_ARENA_BLOCK_SIZE/2) // 4MiB
#define MI_MAX_ARENAS (64) // not more than 256 (since we use 8 bits in the memid) #define MI_MAX_ARENAS (64) // not more than 256 (since we use 8 bits in the memid)
// A memory arena descriptor // A memory arena descriptor

10
src/region.c
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@ -88,12 +88,12 @@ typedef union mi_region_info_u {
typedef struct mem_region_s { typedef struct mem_region_s {
_Atomic(uintptr_t) info; // mi_region_info_t.value _Atomic(uintptr_t) info; // mi_region_info_t.value
_Atomic(void*) start; // start of the memory area _Atomic(void*) start; // start of the memory area
mi_bitmap_field_t in_use; // bit per in-use block mi_bitmap_field_t in_use; // bit per in-use block
mi_bitmap_field_t dirty; // track if non-zero per block mi_bitmap_field_t dirty; // track if non-zero per block
mi_bitmap_field_t commit; // track if committed per block mi_bitmap_field_t commit; // track if committed per block
mi_bitmap_field_t reset; // track if reset per block mi_bitmap_field_t reset; // track if reset per block
_Atomic(uintptr_t) arena_memid; // if allocated from a (huge page) arena _Atomic(uintptr_t) arena_memid; // if allocated from a (huge page) arena
uintptr_t padding; // round to 8 fields uintptr_t padding; // round to 8 fields
} mem_region_t; } mem_region_t;
// The region map // The region map