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keep commit_mask live in the cache for better reuse

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This commit is contained in:
daan 2020-09-05 21:58:32 -07:00
parent 63a9f45ba6
commit f7dc4847f2
4 changed files with 126 additions and 55 deletions
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39
include/mimalloc-internal.h
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@ -71,9 +71,9 @@ bool _mi_os_unreset(void* p, size_t size, bool* is_zero, mi_stats_t* stats)
size_t _mi_os_good_alloc_size(size_t size);
// arena.c
void* _mi_arena_alloc_aligned(size_t size, size_t alignment, bool* commit, bool* large, bool* is_zero, size_t* memid, mi_os_tld_t* tld);
void* _mi_arena_alloc(size_t size, bool* commit, bool* large, bool* is_zero, size_t* memid, mi_os_tld_t* tld);
void _mi_arena_free(void* p, size_t size, size_t memid, bool is_committed, bool is_large, mi_os_tld_t* tld);
void* _mi_arena_alloc_aligned(size_t size, size_t alignment, bool commit, mi_commit_mask_t* commit_mask, bool* large, bool* is_zero, size_t* memid, mi_os_tld_t* tld);
void* _mi_arena_alloc(size_t size, bool commit, mi_commit_mask_t* commit_mask, bool* large, bool* is_zero, size_t* memid, mi_os_tld_t* tld);
void _mi_arena_free(void* p, size_t size, size_t memid, mi_commit_mask_t commit_mask, bool is_large, mi_os_tld_t* tld);
// "segment.c"
@ -655,6 +655,8 @@ static inline void mi_block_set_next(const mi_page_t* page, mi_block_t* block, c
// commit mask
// -------------------------------------------------------------------
#define MI_COMMIT_MASK_BITS (sizeof(mi_commit_mask_t)*8)
static inline mi_commit_mask_t mi_commit_mask_empty(void) {
return 0;
}
@ -664,9 +666,9 @@ static inline mi_commit_mask_t mi_commit_mask_full(void) {
}
static inline mi_commit_mask_t mi_commit_mask_create(uintptr_t bitidx, uintptr_t bitcount) {
mi_assert_internal(bitidx < MI_INTPTR_BITS);
mi_assert_internal((bitidx + bitcount) <= MI_INTPTR_BITS);
if (bitcount == MI_INTPTR_BITS) {
mi_assert_internal(bitidx < MI_COMMIT_MASK_BITS);
mi_assert_internal((bitidx + bitcount) <= MI_COMMIT_MASK_BITS);
if (bitcount == MI_COMMIT_MASK_BITS) {
mi_assert_internal(bitidx==0);
return mi_commit_mask_full();
}
@ -683,7 +685,7 @@ static inline bool mi_commit_mask_is_empty(mi_commit_mask_t mask) {
}
static inline bool mi_commit_mask_is_full(mi_commit_mask_t mask) {
return (~mask == 0);
return ((~mask) == 0);
}
static inline bool mi_commit_mask_all_set(mi_commit_mask_t commit, mi_commit_mask_t mask) {
@ -694,18 +696,35 @@ static inline bool mi_commit_mask_any_set(mi_commit_mask_t commit, mi_commit_mas
return ((commit & mask) != 0);
}
static mi_decl_nodiscard inline mi_commit_mask_t mi_commit_mask_intersect(mi_commit_mask_t commit, mi_commit_mask_t mask) {
mi_decl_nodiscard static inline mi_commit_mask_t mi_commit_mask_intersect(mi_commit_mask_t commit, mi_commit_mask_t mask) {
return (commit & mask);
}
static inline void mi_commit_mask_clear(mi_commit_mask_t* commit, mi_commit_mask_t mask) {
*commit = *commit & ~mask;
*commit = (*commit) & (~mask);
}
static inline void mi_commit_mask_set(mi_commit_mask_t* commit, mi_commit_mask_t mask) {
*commit = *commit | mask;
*commit = (*commit) | mask;
}
static inline size_t mi_commit_mask_committed_size(mi_commit_mask_t mask, size_t total) {
if (mi_commit_mask_is_full(mask)) {
return total;
}
else if (mi_commit_mask_is_empty(mask)) {
return 0;
}
else {
size_t count = 0;
for (; mask != 0; mask >>= 1) { // todo: use popcount
if ((mask&1)!=0) count++;
}
return (total/MI_COMMIT_MASK_BITS)*count;
}
}
#define mi_commit_mask_foreach(mask,idx,count) \
idx = 0; \
while (mask != 0) { \