Comment 8 for bug 1274614

I've performed some stress tests for my upcoming patch https://review.openstack.org/#/c/76831/ which introduces dedicated agents handler for Nailgun and some improvements for agent code. It sad to say but new handler didn't show speed growth. Conversely speed even with caching lowered for 10% in comparison with old handler. We have only one improvement with this patch - agents will try to update node state first, then register if update attempt returns 404. This will reduce number of requests to master node approx 2 times. Also separated handler for agents will allow us to optimize agent requests processing with no fear to harm other handlers.