Comment 1 for bug 1858419

Yes, we run some deploy on large scale. And indeed there are many may config options tunning. But not neutron itself only, but also those centralized services (DB and MQ) for neutron-server and agents require some adjustment and optimization.

Besides, we did a lot of optimization and service subtraction for neutron itself, such as use distributed DHCP instead of dhcp-agent, use distributed-metadata-proxy instead of metadata agent, resource lazy load for L3, local cache for ovs-agent and direct DB access for ovs-agent etc.

So, this could be a really long story.