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Tcache: Make flush fractions configurable.

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This commit is contained in:
David Goldblatt
2020-05-13 15:32:18 -07:00
committed by David Goldblatt
parent 7503b5b33a
commit 6cdac3c573
6 changed files with 29 additions and 2 deletions
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2
include/jemalloc/internal/tcache_externs.h
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@@ -10,6 +10,8 @@ extern unsigned opt_tcache_nslots_large;
extern ssize_t opt_lg_tcache_shift;
extern size_t opt_tcache_gc_incr_bytes;
extern size_t opt_tcache_gc_delay_bytes;
extern unsigned opt_lg_tcache_flush_small_div;
extern unsigned opt_lg_tcache_flush_large_div;
/*
* Number of tcache bins. There are SC_NBINS small-object bins, plus 0 or more

4
include/jemalloc/internal/tcache_inlines.h
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@@ -110,7 +110,7 @@ tcache_dalloc_small(tsd_t *tsd, tcache_t *tcache, void *ptr, szind_t binind,
cache_bin_t *bin = &tcache->bins[binind];
if (unlikely(!cache_bin_dalloc_easy(bin, ptr))) {
unsigned remain = cache_bin_info_ncached_max(
&tcache_bin_info[binind]) >> 1;
&tcache_bin_info[binind]) >> opt_lg_tcache_flush_small_div;
tcache_bin_flush_small(tsd, tcache, bin, binind, remain);
bool ret = cache_bin_dalloc_easy(bin, ptr);
assert(ret);
@@ -128,7 +128,7 @@ tcache_dalloc_large(tsd_t *tsd, tcache_t *tcache, void *ptr, szind_t binind,
cache_bin_t *bin = &tcache->bins[binind];
if (unlikely(!cache_bin_dalloc_easy(bin, ptr))) {
unsigned remain = cache_bin_info_ncached_max(
&tcache_bin_info[binind]) >> 1;
&tcache_bin_info[binind]) >> opt_lg_tcache_flush_large_div;
tcache_bin_flush_large(tsd, tcache, bin, binind, remain);
bool ret = cache_bin_dalloc_easy(bin, ptr);
assert(ret);