project-base/server-skynet-source-3rd-jemalloc
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Only read arena index from extent on the tcache flush path.

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Add exten_arena_ind_get() to avoid loading the actual arena ptr in case we just
need to check arena matching.
This commit is contained in:
Qi Wang
2018-12-03 18:30:58 -08:00
committed by Qi Wang
parent 441335d924
commit 7241bf5b74
2 changed files with 19 additions and 14 deletions
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14
src/tcache.c
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@@ -120,7 +120,9 @@ tcache_bin_flush_small(tsd_t *tsd, tcache_t *tcache, cache_bin_t *tbin,
while (nflush > 0) {
/* Lock the arena bin associated with the first object. */
extent_t *extent = item_extent[0];
arena_t *bin_arena = extent_arena_get(extent);
unsigned bin_arena_ind = extent_arena_ind_get(extent);
arena_t *bin_arena = arena_get(tsd_tsdn(tsd), bin_arena_ind,
false);
unsigned binshard = extent_binshard_get(extent);
assert(binshard < bin_infos[binind].n_shards);
bin_t *bin = &bin_arena->bins[binind].bin_shards[binshard];
@@ -146,7 +148,7 @@ tcache_bin_flush_small(tsd_t *tsd, tcache_t *tcache, cache_bin_t *tbin,
extent = item_extent[i];
assert(ptr != NULL && extent != NULL);
if (extent_arena_get(extent) == bin_arena
if (extent_arena_ind_get(extent) == bin_arena_ind
&& extent_binshard_get(extent) == binshard) {
arena_dalloc_bin_junked_locked(tsd_tsdn(tsd),
bin_arena, bin, binind, extent, ptr);
@@ -208,7 +210,9 @@ tcache_bin_flush_large(tsd_t *tsd, cache_bin_t *tbin, szind_t binind,
while (nflush > 0) {
/* Lock the arena associated with the first object. */
extent_t *extent = item_extent[0];
arena_t *locked_arena = extent_arena_get(extent);
unsigned locked_arena_ind = extent_arena_ind_get(extent);
arena_t *locked_arena = arena_get(tsd_tsdn(tsd),
locked_arena_ind, false);
bool idump;
if (config_prof) {
@@ -223,7 +227,7 @@ tcache_bin_flush_large(tsd_t *tsd, cache_bin_t *tbin, szind_t binind,
void *ptr = *(tbin->avail - 1 - i);
assert(ptr != NULL);
extent = item_extent[i];
if (extent_arena_get(extent) == locked_arena) {
if (extent_arena_ind_get(extent) == locked_arena_ind) {
large_dalloc_prep_junked_locked(tsd_tsdn(tsd),
extent);
}
@@ -253,7 +257,7 @@ tcache_bin_flush_large(tsd_t *tsd, cache_bin_t *tbin, szind_t binind,
extent = item_extent[i];
assert(ptr != NULL && extent != NULL);
if (extent_arena_get(extent) == locked_arena) {
if (extent_arena_ind_get(extent) == locked_arena_ind) {
large_dalloc_finish(tsd_tsdn(tsd), extent);
} else {
/*