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Create a const array with only a small bin to size map

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This commit is contained in:
Ben Maurer 2014-04-16 14:31:24 -07:00
parent 6c39f9e059
commit 021136ce4d
5 changed files with 17 additions and 7 deletions
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10
src/arena.c
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@ -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)