On 04/02/2015 06:22 PM, Brant Knudson wrote: > On Thu, Apr 2, 2015 at 4:52 PM, Boris Pavlovic <bo...@pavlovic.me> wrote: > >> Hi stackers, >> >> Recently, I started working on speeding up Rally cli. >> >> What I understand immediately is that I don't understand why it takes >> 700-800ms >> to just run "rally version" command and it is impossible hard task to find >> what takes so much time just by reading the code. >> >> I started playing with patching __import__ and make a simple but powerful >> tool >> that allows you to trace any imports and get pretty graphs of nested >> importing with timings: >> >> https://github.com/boris-42/profimp >> >> So now it's simple to understand what imports take most of time, just by >> running: >> >> profimp "import <lib>" --html >> >> >> Let's optimize OpenStack libs and clients? >> >> >> Best regards, >> Boris Pavlovic >> >> > There's a review in python-keystoneclient to do lazy importing of modules > here: https://review.openstack.org/#/c/164066/ . It would be interesting to > know if this improves the initial import time significantly. Also, this can > be an example of how to improve other libraries.
Yes please. Also - for libraries - let's try to not import lots of things. __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
