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Implement explicit tcache support.

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Add the MALLOCX_TCACHE() and MALLOCX_TCACHE_NONE macros, which can be
used in conjunction with the *allocx() API.

Add the tcache.create, tcache.flush, and tcache.destroy mallctls.

This resolves #145.
This commit is contained in:
Jason Evans 2015-01-29 15:30:47 -08:00
parent 23694b0745
commit 1cb181ed63
16 changed files with 740 additions and 337 deletions
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24
src/arena.c
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@ -2182,8 +2182,7 @@ arena_ralloc_no_move(void *ptr, size_t oldsize, size_t size, size_t extra,
void *
arena_ralloc(tsd_t *tsd, arena_t *arena, void *ptr, size_t oldsize, size_t size,
size_t extra, size_t alignment, bool zero, bool try_tcache_alloc,
bool try_tcache_dalloc)
size_t extra, size_t alignment, bool zero, tcache_t *tcache)
{
void *ret;
size_t copysize;
@ -2201,12 +2200,9 @@ arena_ralloc(tsd_t *tsd, arena_t *arena, void *ptr, size_t oldsize, size_t size,
size_t usize = sa2u(size + extra, alignment);
if (usize == 0)
return (NULL);
ret = ipalloct(tsd, usize, alignment, zero, try_tcache_alloc,
arena);
} else {
ret = arena_malloc(tsd, arena, size + extra, zero,
try_tcache_alloc);
}
ret = ipalloct(tsd, usize, alignment, zero, tcache, arena);
} else
ret = arena_malloc(tsd, arena, size + extra, zero, tcache);
if (ret == NULL) {
if (extra == 0)
@ -2216,12 +2212,10 @@ arena_ralloc(tsd_t *tsd, arena_t *arena, void *ptr, size_t oldsize, size_t size,
size_t usize = sa2u(size, alignment);
if (usize == 0)
return (NULL);
ret = ipalloct(tsd, usize, alignment, zero,
try_tcache_alloc, arena);
} else {
ret = arena_malloc(tsd, arena, size, zero,
try_tcache_alloc);
}
ret = ipalloct(tsd, usize, alignment, zero, tcache,
arena);
} else
ret = arena_malloc(tsd, arena, size, zero, tcache);
if (ret == NULL)
return (NULL);
@ -2236,7 +2230,7 @@ arena_ralloc(tsd_t *tsd, arena_t *arena, void *ptr, size_t oldsize, size_t size,
copysize = (size < oldsize) ? size : oldsize;
JEMALLOC_VALGRIND_MAKE_MEM_UNDEFINED(ret, copysize);
memcpy(ret, ptr, copysize);
isqalloc(tsd, ptr, oldsize, try_tcache_dalloc);
isqalloc(tsd, ptr, oldsize, tcache);
return (ret);
}