Improve OpenStack performance by redcuing bcrypt hasing rounds number
Reduce bcrypt hashing rounds from 12 to 4 (minimal possilbe).
This is going to imporve a lot of perforamcne of OpenStack.
Bcrypt is hashing algorithm that is designed to use a lot of resources and
in that way stops brutforce attacks. It's exponential algorithm that depends
on amount of rounds. By default they use 12 rounds which is quite high value,
good enough for real secure production enviorments.
In case of DevStack it's going to slow down all authentication by many times.
Rally shows about 5 times slownest (adding 2-5 seconds to every authenticate)
DevStack is meant for developemnt & CI so performance is way more important than
security.
Change-Id: Id8c763d63cb91f37a774f9400f35c309f37d6f12
1 file changed