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Bin: Move stats closer to the mutex.

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This is a slight cache locality optimization.
This commit is contained in:
David Goldblatt 2021-02-01 12:03:11 -08:00 • committed by David Goldblatt
parent c259323ab3
commit 20140629b4
2 changed files with 13 additions and 3 deletions
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9
include/jemalloc/internal/bin.h
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@ -16,6 +16,12 @@ struct bin_s {
/* All operations on bin_t fields require lock ownership. */
malloc_mutex_t lock;
/*
* Bin statistics. These get touched every time the lock is acquired,
* so put them close by in the hopes of getting some cache locality.
*/
bin_stats_t stats;
/*
* Current slab being used to service allocations of this bin's size
* class. slabcur is independent of slabs_{nonfull,full}; whenever
@ -33,9 +39,6 @@ struct bin_s {
/* List used to track full slabs. */
edata_list_active_t slabs_full;
/* Bin statistics. */
bin_stats_t stats;
};
/* A set of sharded bins of the same size class. */