Open Stack

Folks,

I have deployed pike using openstack-ansible on 3 node (HA) and
everything was good Horizon was fast enough but last week i have
upgraded to queens and found horizon is painful slow, I did command
line test and they are ok but GUI is just hard to watch, I have check
all basic setting memcache etc.. all looks good, i am not sure how to
troubleshoot this issue.

Just wonder if this is queens issue because pike was running fast
enough, is there any good guide line or tool to find out speed of GUI