project-base/server-skynet-source-3rd-jemalloc
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Use rtree-based chunk lookups rather than pointer bit twiddling.

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Look up chunk metadata via the radix tree, rather than using
CHUNK_ADDR2BASE().

Propagate pointer's containing extent.

Minimize extent lookups by doing a single lookup (e.g. in free()) and
propagating the pointer's extent into nearly all the functions that may
need it.
This commit is contained in:
Jason Evans
2016-03-23 20:29:33 -07:00
parent 2d2b4e98c9
commit db72272bef
14 changed files with 548 additions and 504 deletions
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include/jemalloc/internal/tcache.h
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@@ -371,7 +371,7 @@ tcache_alloc_large(tsd_t *tsd, arena_t *arena, tcache_t *tcache, size_t size,
if (config_prof && usize == LARGE_MINCLASS) {
arena_chunk_t *chunk =
(arena_chunk_t *)CHUNK_ADDR2BASE(ret);
(arena_chunk_t *)extent_addr_get(iealloc(ret));
size_t pageind = (((uintptr_t)ret - (uintptr_t)chunk) >>
LG_PAGE);
arena_mapbits_large_binind_set(chunk, pageind,