Subject: Re: bus_dma'ed DEFTA driver committed.
To: Ted Lemon <mellon@hoffman.vix.com>
From: Jonathan Stone <jonathan@DSG.Stanford.EDU>
List: port-pmax
Date: 05/27/1998 22:31:20
>> I'd say it's typical TCP stack overhead.
>?!? What is "typical TCP stack overhead?" I've seen some pretty
>impressive numbers out of our TCP stack.
Fraction of the raw CPU memory-read/write bcopy bandwidth, assuming
large (~4k) packet sizes, so per-packet costs are negigible compared
to per-byte costs.
Specifically, I was thinking of the numbers I recorded for Boggs' WRL
T3 boards on 5000/200s and 5000/240s.