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SubjectRe: Network Performance Testing Summary
On Wed, Jun 06, 2001 at 02:52:03AM +0000, John William wrote:
> The curse of the HP Vectra XU 5/90 strikes again!
> What is interesting is that I tried the NetGear FA310, FA311, 3COM 3cSOHO
> and 3C905C-TX cards and both the receive and transmit speeds (measured with
> both iperf and netperf) were so close to each other as to be a non-issue.
> Several people e-mailed me to let me know that "card 'X' performance is
> terrible, I can only get good performance with card 'Y'". So, I just thought
> I should send this message out to set things a bit straight.

Did you monitor CPU usage during these tests?

I did some throughput comparing a DLink RTL8139 based card to a 3C905C-TX card on a K6-2 450.
Both managed to fully saturate 100Mbps. However, the DLink used up ~90% CPU, and the 3Com
only used about 50% CPU. This was on 2.4.5, with the 8139too driver from 2.4.3.

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