tuning routing using cxgbe and T580-CR cards?

[Bjoern A. Zeeb]

On 11 Jul 2014, at 17:28 , John Jasem <jjasen at gmail.com> wrote:

> c) the defaults for the cxgbe driver appear to be 8 rx queues, and N tx
> queues, with N being the number of CPUs detected. For a system running
> multiple cards, routing or firewalling, does this make sense, or would
> balancing tx and rx be more ideal? And would reducing queues per card
> based on NUMBER-CPUS and NUM-CHELSIO-PORTS make sense at all?
> …
> g) Are there other settings I should be looking at, that may squeeze out
> a few more packets?

If you are primarily forwarding packets (you say “routing” multiple times) the first thing you should do is turn off LRO and TSO on all ports.

— 
Bjoern A. Zeeb             "Come on. Learn, goddamn it.", WarGames, 1983