cedric pushed a commit to branch efl-1.8. http://git.enlightenment.org/core/efl.git/commit/?id=3e711ba6353f53df51460e7ed25475ade0ab573a
commit 3e711ba6353f53df51460e7ed25475ade0ab573a Author: Cedric Bail <[email protected]> Date: Wed Dec 4 18:29:07 2013 +0900 eina: increase hash matching inside of Eina_Hash. This is the correct implementation of the idea developped in Lucas De Marchi's blog : http://www.politreco.com/2013/09/optimizing-hash-table-with-kmod-as-testbed/ This give an interesting +15% for all Eina_Hash user whatever hash function they use. The inlined djb2 is still the fastest one and all other give very close result. It does increase memory foot print, but as much as the previous way of doing it. --- src/lib/eina/eina_hash.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/lib/eina/eina_hash.c b/src/lib/eina/eina_hash.c index dab865e..274d3e8 100644 --- a/src/lib/eina/eina_hash.c +++ b/src/lib/eina/eina_hash.c @@ -64,7 +64,7 @@ #define EINA_HASH_BUCKET_SIZE 8 #define EINA_HASH_SMALL_BUCKET_SIZE 5 -#define EINA_HASH_RBTREE_MASK 0xFFF +#define EINA_HASH_RBTREE_MASK 0xFFFFFF typedef struct _Eina_Hash_Head Eina_Hash_Head; typedef struct _Eina_Hash_Element Eina_Hash_Element; --
