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Cleanup tcache allocation logic

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The logic in tcache allocation no longer involves profiling or
filling.
This commit is contained in:
Yinan Zhang 2020-04-28 10:40:46 -07:00
parent e6cb6919c0
commit fef9abdcc0
1 changed files with 4 additions and 18 deletions
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22
include/jemalloc/internal/tcache_inlines.h
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@ -31,7 +31,6 @@ tcache_alloc_small(tsd_t *tsd, arena_t *arena, tcache_t *tcache,
size_t size, szind_t binind, bool zero, bool slow_path) { size_t size, szind_t binind, bool zero, bool slow_path) {
void *ret; void *ret;
bool tcache_success; bool tcache_success;
size_t usize JEMALLOC_CC_SILENCE_INIT(0);
assert(binind < SC_NBINS); assert(binind < SC_NBINS);
cache_bin_t *bin = &tcache->bins[binind]; cache_bin_t *bin = &tcache->bins[binind];
@ -52,15 +51,9 @@ tcache_alloc_small(tsd_t *tsd, arena_t *arena, tcache_t *tcache,
} }
assert(ret); assert(ret);
/*
* Only compute usize if required. The checks in the following if
* statement are all static.
*/
if (config_prof || (slow_path && config_fill) || unlikely(zero)) {
usize = sz_index2size(binind);
assert(tcache_salloc(tsd_tsdn(tsd), ret) == usize);
}
if (unlikely(zero)) { if (unlikely(zero)) {
size_t usize = sz_index2size(binind);
assert(tcache_salloc(tsd_tsdn(tsd), ret) == usize);
memset(ret, 0, usize); memset(ret, 0, usize);
} }
if (config_stats) { if (config_stats) {
@ -94,16 +87,9 @@ tcache_alloc_large(tsd_t *tsd, arena_t *arena, tcache_t *tcache, size_t size,
return NULL; return NULL;
} }
} else { } else {
size_t usize JEMALLOC_CC_SILENCE_INIT(0);
/* Only compute usize on demand */
if (config_prof || (slow_path && config_fill) ||
unlikely(zero)) {
usize = sz_index2size(binind);
assert(usize <= tcache_maxclass);
}
if (unlikely(zero)) { if (unlikely(zero)) {
size_t usize = sz_index2size(binind);
assert(usize <= tcache_maxclass);
memset(ret, 0, usize); memset(ret, 0, usize);
} }