Comment 8 for bug 1536003

I ported the patch into our environment and ran the tests again, overall cpu usage did not change, when I looked at gprof output, bitwise_rscan() is consuming 37.27% of cpu time whereas it was taking 49.04% before the patch. BTW, I do not have any VM instances in my setup, just routers, networks, subnets, ports and a lot of them. ovn-controller utilization stays at 99.8--100%.
And, also, I am not using provider network. I guess I may have to wait until further optimization comes out.