this massively speeds up efreet's icon cache building for huge icon
themes... in my nasty test case of some insanely huge icon themes that
have like 50,000 - 100,000 files... each - and multiple where the icon
cache has to scan all of them and build the cache files... i see a
speedup of going from 80 seconds to build down to 15-16 seconds. so
over 5 times faster.
This builds the dictionary in a temporary eina superfast string hash
in ram and then just before writing flattens it out into a regular eet
dict format.
@opt
on read/decode we can avoid lots of little locks and unlocked by
having the rwlock go to the outside and a single lock+unlock (read) on
the dictionary. it blocks for longer by has less atomics/fence points
as a result and thus decodes faster where changes that we are writing
while decoding is insanely low so no point worrying here.
If index value is not -1, then eet_dictionary_string_add() returns.
Therefore, it does not need to check the index value after that.
Reviewed-by: Cedric BAIL <cedric.bail@free.fr>
Differential Revision: https://phab.enlightenment.org/D7922
if the dict is contended on by lots of threads then a spinlock really
makes it slow. a rwlock gets about 1.5-2x speedup depending on
arch/thread count.
@optimize
Function edje_edit_save_all cause lots of SPANK SPANK, because
eet_dictionary_free is trying to delete string that is actually not a stringshare.
Reviewers: cedric, seoz, raster
Reviewed By: cedric
CC: reutskiy.v.v, cedric
Differential Revision: https://phab.enlightenment.org/D322
Signed-off-by: Cedric Bail <cedric.bail@samsung.com>
Carsten Haitzler
Jaehyun Cho
Stefan Schmidt
Vorobiov Vitalii
Cedric Bail
Vincent Torri