project-base/server-skynet-source-3rd-jemalloc
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This commit is contained in:
Jason Evans 2012-05-10 00:18:46 -07:00
parent 80fe0478e6
commit 53bd42c1fe
1 changed files with 9 additions and 9 deletions
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18
include/jemalloc/internal/arena.h
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@ -93,13 +93,13 @@ struct arena_chunk_map_s {
* Run address (or size) and various flags are stored together. The bit * Run address (or size) and various flags are stored together. The bit
* layout looks like (assuming 32-bit system): * layout looks like (assuming 32-bit system):
* *
* ???????? ???????? ????---- ----dula * ???????? ???????? ????nnnn nnnndula
* *
* ? : Unallocated: Run address for first/last pages, unset for internal * ? : Unallocated: Run address for first/last pages, unset for internal
* pages. * pages.
* Small: Run page offset. * Small: Run page offset.
* Large: Run size for first page, unset for trailing pages. * Large: Run size for first page, unset for trailing pages.
* - : Unused. * n : binind for small size class, BININD_INVALID for large size class.
* d : dirty? * d : dirty?
* u : unzeroed? * u : unzeroed?
* l : large? * l : large?
@ -118,14 +118,14 @@ struct arena_chunk_map_s {
* [dula] : bit unset * [dula] : bit unset
* *
* Unallocated (clean): * Unallocated (clean):
* ssssssss ssssssss ssss1111 1111du-a * ssssssss ssssssss ssss++++ ++++du-a
* xxxxxxxx xxxxxxxx xxxxxxxx xxxx-Uxx * xxxxxxxx xxxxxxxx xxxxxxxx xxxx-Uxx
* ssssssss ssssssss ssss1111 1111dU-a * ssssssss ssssssss ssss++++ ++++dU-a
* *
* Unallocated (dirty): * Unallocated (dirty):
* ssssssss ssssssss ssss1111 1111D--a * ssssssss ssssssss ssss++++ ++++D--a
* xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx * xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
* ssssssss ssssssss ssss1111 1111D--a * ssssssss ssssssss ssss++++ ++++D--a
* *
* Small: * Small:
* pppppppp pppppppp ppppnnnn nnnnd--A * pppppppp pppppppp ppppnnnn nnnnd--A
@ -133,15 +133,15 @@ struct arena_chunk_map_s {
* pppppppp pppppppp ppppnnnn nnnnd--A * pppppppp pppppppp ppppnnnn nnnnd--A
* *
* Large: * Large:
* ssssssss ssssssss ssss1111 1111D-LA * ssssssss ssssssss ssss++++ ++++D-LA
* xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx * xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
* -------- -------- ----1111 1111D-LA * -------- -------- ----++++ ++++D-LA
* *
* Large (sampled, size <= PAGE): * Large (sampled, size <= PAGE):
* ssssssss ssssssss ssssnnnn nnnnD-LA * ssssssss ssssssss ssssnnnn nnnnD-LA
* *
* Large (not sampled, size == PAGE): * Large (not sampled, size == PAGE):
* ssssssss ssssssss ssss1111 1111D-LA * ssssssss ssssssss ssss++++ ++++D-LA
*/ */
size_t bits; size_t bits;
#define CHUNK_MAP_BININD_SHIFT 4 #define CHUNK_MAP_BININD_SHIFT 4