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Remove the lg_tcache_gc_sweep option.

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Remove the lg_tcache_gc_sweep option, because it is no longer
very useful.  Prior to the addition of dynamic adjustment of tcache fill
count, it was possible for fill/flush overhead to be a problem, but this
problem no longer occurs.
This commit is contained in:
Jason Evans
2012-03-05 14:34:37 -08:00
parent b8c8be7f8a
commit 4507f34628
6 changed files with 12 additions and 58 deletions
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10
src/tcache.c
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@@ -6,7 +6,6 @@
bool opt_tcache = true;
ssize_t opt_lg_tcache_max = LG_TCACHE_MAXCLASS_DEFAULT;
ssize_t opt_lg_tcache_gc_sweep = LG_TCACHE_GC_SWEEP_DEFAULT;
tcache_bin_info_t *tcache_bin_info;
static unsigned stack_nelms; /* Total stack elms per tcache. */
@@ -24,7 +23,6 @@ pthread_key_t tcache_tsd;
size_t nhbins;
size_t tcache_maxclass;
unsigned tcache_gc_incr;
/******************************************************************************/
/* Function prototypes for non-inline static functions. */
@@ -419,14 +417,6 @@ tcache_boot(void)
stack_nelms += tcache_bin_info[i].ncached_max;
}
/* Compute incremental GC event threshold. */
if (opt_lg_tcache_gc_sweep >= 0) {
tcache_gc_incr = ((1U << opt_lg_tcache_gc_sweep) /
NBINS) + (((1U << opt_lg_tcache_gc_sweep) % NBINS ==
0) ? 0 : 1);
} else
tcache_gc_incr = 0;
if (pthread_key_create(&tcache_tsd, tcache_thread_cleanup) !=
0) {
malloc_write(