Tcp/ip offload card driver
Quoted 4 lines
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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
From: Pete Zaitcev <[email protected]>
Date: Fri, 10 May 2002 13:55:52 -0400
Quoted 3 lines
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.