Re: Tcp/ip offload card driver

Pete Zaitcev (zaitcev@redhat.com)
Fri, 10 May 2002 13:55:52 -0400


>[...]
> For example, do a SpecWEB run with TUX both using on-chip-TCP and
> without, same networking card. Show a demonstrable gain from the
> on-chip-TCP implementation. I bet you can't.

NO! Doing such a test sets you up for a failure. If a vendor
of the card provides an on-chip TCP, it is entirely in the
vendor's interest to penalize regular TCP (for example, by
failing to provide checksum offload or sane S/G segments).

I only consider fair a test of on-chip TCP compared to
the best of the normal NICs.

-- Pete
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/