Create a const array with only a small bin to size map
This commit is contained in:
parent
6c39f9e059
commit
021136ce4d
@ -385,6 +385,7 @@ extern ssize_t opt_lg_dirty_mult;
|
||||
* and all accesses are via the SMALL_SIZE2BIN macro.
|
||||
*/
|
||||
extern uint8_t const small_size2bin[];
|
||||
extern uint32_t const small_bin2size[];
|
||||
#define SMALL_SIZE2BIN(s) (small_size2bin[(s-1) >> LG_TINY_MIN])
|
||||
|
||||
extern arena_bin_info_t arena_bin_info[NBINS];
|
||||
@ -964,7 +965,7 @@ arena_salloc(const void *ptr, bool demote)
|
||||
assert(arena_mapbits_large_get(chunk, pageind) != 0 ||
|
||||
arena_ptr_small_binind_get(ptr, arena_mapbits_get(chunk,
|
||||
pageind)) == binind);
|
||||
ret = arena_bin_info[binind].reg_size;
|
||||
ret = small_bin2size[binind];
|
||||
}
|
||||
|
||||
return (ret);
|
||||
|
@ -602,7 +602,7 @@ s2u(size_t size)
|
||||
{
|
||||
|
||||
if (size <= SMALL_MAXCLASS)
|
||||
return (arena_bin_info[SMALL_SIZE2BIN(size)].reg_size);
|
||||
return (small_bin2size[SMALL_SIZE2BIN(size)]);
|
||||
if (size <= arena_maxclass)
|
||||
return (PAGE_CEILING(size));
|
||||
return (CHUNK_CEILING(size));
|
||||
@ -645,7 +645,7 @@ sa2u(size_t size, size_t alignment)
|
||||
|
||||
if (usize <= arena_maxclass && alignment <= PAGE) {
|
||||
if (usize <= SMALL_MAXCLASS)
|
||||
return (arena_bin_info[SMALL_SIZE2BIN(usize)].reg_size);
|
||||
return (small_bin2size[SMALL_SIZE2BIN(usize)]);
|
||||
return (PAGE_CEILING(usize));
|
||||
} else {
|
||||
size_t run_size;
|
||||
|
@ -346,6 +346,7 @@ rtree_set
|
||||
s2u
|
||||
sa2u
|
||||
set_errno
|
||||
small_bin2size
|
||||
small_size2bin
|
||||
stats_cactive
|
||||
stats_cactive_add
|
||||
|
@ -266,14 +266,14 @@ tcache_alloc_small(tcache_t *tcache, size_t size, bool zero)
|
||||
binind = SMALL_SIZE2BIN(size);
|
||||
assert(binind < NBINS);
|
||||
tbin = &tcache->tbins[binind];
|
||||
size = arena_bin_info[binind].reg_size;
|
||||
size = small_bin2size[binind];
|
||||
ret = tcache_alloc_easy(tbin);
|
||||
if (ret == NULL) {
|
||||
ret = tcache_alloc_small_hard(tcache, tbin, binind);
|
||||
if (ret == NULL)
|
||||
return (NULL);
|
||||
}
|
||||
assert(tcache_salloc(ret) == arena_bin_info[binind].reg_size);
|
||||
assert(tcache_salloc(ret) == size);
|
||||
|
||||
if (zero == false) {
|
||||
if (config_fill) {
|
||||
@ -296,7 +296,7 @@ tcache_alloc_small(tcache_t *tcache, size_t size, bool zero)
|
||||
if (config_stats)
|
||||
tbin->tstats.nrequests++;
|
||||
if (config_prof)
|
||||
tcache->prof_accumbytes += arena_bin_info[binind].reg_size;
|
||||
tcache->prof_accumbytes += size;
|
||||
tcache_event(tcache);
|
||||
return (ret);
|
||||
}
|
||||
|
10
src/arena.c
10
src/arena.c
@ -7,6 +7,14 @@
|
||||
ssize_t opt_lg_dirty_mult = LG_DIRTY_MULT_DEFAULT;
|
||||
arena_bin_info_t arena_bin_info[NBINS];
|
||||
|
||||
JEMALLOC_ALIGNED(CACHELINE)
|
||||
const uint32_t small_bin2size[NBINS] = {
|
||||
#define SIZE_CLASS(bin, delta, size) \
|
||||
size,
|
||||
SIZE_CLASSES
|
||||
#undef SIZE_CLASS
|
||||
};
|
||||
|
||||
JEMALLOC_ALIGNED(CACHELINE)
|
||||
const uint8_t small_size2bin[] = {
|
||||
#define S2B_8(i) i,
|
||||
@ -1615,7 +1623,7 @@ arena_malloc_small(arena_t *arena, size_t size, bool zero)
|
||||
binind = SMALL_SIZE2BIN(size);
|
||||
assert(binind < NBINS);
|
||||
bin = &arena->bins[binind];
|
||||
size = arena_bin_info[binind].reg_size;
|
||||
size = small_bin2size[binind];
|
||||
|
||||
malloc_mutex_lock(&bin->lock);
|
||||
if ((run = bin->runcur) != NULL && run->nfree > 0)
|
||||
|
Loading…
Reference in New Issue
Block a user