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Switch from opt.lg_tcache_max to opt.tcache_max

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Though for convenience, keep parsing lg_tcache_max.
This commit is contained in:
Qi Wang
2020-10-19 22:48:26 -07:00
committed by Qi Wang
parent 5ba861715a
commit c8209150f9
7 changed files with 47 additions and 32 deletions
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14
src/tcache.c
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@@ -11,11 +11,8 @@
bool opt_tcache = true;
/*
* (1U << opt_lg_tcache_max) is used to compute tcache_maxclass. This choice
* (32kb by default) works well as a default in practice.
*/
ssize_t opt_lg_tcache_max = 15;
/* tcache_maxclass is set to 32KB by default. */
size_t opt_tcache_max = ((size_t)1) << 15;
/* Reasonable defaults for min and max values. */
unsigned opt_tcache_nslots_small_min = 20;
@@ -935,14 +932,11 @@ tcache_ncached_max_compute(szind_t szind) {
bool
tcache_boot(tsdn_t *tsdn, base_t *base) {
/* If necessary, clamp opt_lg_tcache_max. */
tcache_maxclass = opt_lg_tcache_max < 0 ? 0 :
ZU(1) << opt_lg_tcache_max;
tcache_maxclass = sz_s2u(opt_tcache_max);
if (tcache_maxclass < SC_SMALL_MAXCLASS) {
tcache_maxclass = SC_SMALL_MAXCLASS;
} else if (tcache_maxclass > TCACHE_MAXCLASS_LIMIT) {
tcache_maxclass = TCACHE_MAXCLASS_LIMIT;
}
assert(tcache_maxclass <= TCACHE_MAXCLASS_LIMIT);
nhbins = sz_size2index(tcache_maxclass) + 1;
if (malloc_mutex_init(&tcaches_mtx, "tcaches", WITNESS_RANK_TCACHES,