Re: Tcp/ip offload card driver

[David S. Miller]

   From: Pete Zaitcev <[e-mail]>
   Date: 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.
   
Sorry, I should have stated this explicitly.  The same card
must have SG/Checksumming capability for the no-TCP-onchip portion of
the test.