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. - Brant
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