Comment 2 for bug 1431649

Part of this is keystoneclient.session is really slow to load:

On my current box, before: 0.16 seconds after: 0.10 seconds
and scale those times up for slow devstack boxes
Tested with:
 python -c "import timeit; print timeit.timeit('from keystoneclient import session',number=1)"

https://review.openstack.org/#/c/164066/