Flowtables -- any tuning hints?

Kip Macy kmacy at freebsd.org
Mon Jul 13 19:29:00 UTC 2009

I'm only responding to avoid the misconception that Barney's
statements are correct.

Barney - please read the code so that you understand what it actually
does before commenting further.


> I don't see the need for flowtables or any sort of hashing with
> multi queue boards in a pass-through environment (such as a firewall).
> The flows are already hashed by the hardware so doing all of the
> gobbledygook in flowtables seems like a waste of cycles. Just matching
> your receive and transmit queues in a properly designed driver is all
> thats necessary for lock avoidance.
> Barney
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