Re: TCP Segmentation Offloading (TSO)

From: Bernd Eckenfels (ecki-news2002-09@lina.inka.de)
Date: Tue Sep 03 2002 - 13:18:52 EST


In article <JCEFIMMPGNNGFPMJJKINIEMJCDAA.jros@ece.uci.edu> you wrote:
> What i am wondering is how come we only get a few percentage improvement in
> throughput. Theoretically, since 64KB/1.5KB ~= 40, we should get a
> throughput improvement of 40 times.

You send the same amount of data, you only send it in multiple junks instead
of one. So the Overhead is only header*40bytes more and
40times*lattencyofdma. This is far less than factor 40.

Greetings
Bernd
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