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Optimize malloc() and free() fast paths.

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Embed the bin index for small page runs into the chunk page map, in
order to omit [...] in the following dependent load sequence:
  ptr-->mapelm-->[run-->bin-->]bin_info

Move various non-critcal code out of the inlined function chain into
helper functions (tcache_event_hard(), arena_dalloc_small(), and
locking).
This commit is contained in:
Jason Evans 2012-05-02 00:30:36 -07:00
parent fd97b1dfc7
commit 203484e2ea
7 changed files with 613 additions and 387 deletions
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2
src/tsd.c
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@ -14,7 +14,7 @@ malloc_tsd_malloc(size_t size)
{
/* Avoid choose_arena() in order to dodge bootstrapping issues. */
return arena_malloc(arenas[0], size, false, false);
return (arena_malloc(arenas[0], size, false, false));
}
void