10 gigabit Ethernet - Add on question

[Robert D. Holtz - Lists]

Has anyone done any type of testing with real life data loads, i.e., high
rate of small packets, high rates of varying packet sizes, etc.?  

I'm sure that there's a microsecond here and there where the theoretical can
be achieved. What I was wondering is there a Dell box that can achieve
realistic throughput even getting close to the 10gbps rate?

At 10gpbs the TCP transport itself begins to show that familiar saw tooth
pattern and never hits the limit.

Thank You,
Robert D. Holtz

Kuba Ober wrote :

This is true for "raw" network traffic, because limits quickly depend
on what and how you transfer. My testings on some brand new dual quad
core PE1950 III servers (E5410 @ 2.33GHz w/ 6MB cache) show for
instance that an rsync/ssh transfer from one to the other maxes out at
50MB/s because that corresponds to one ssh process taking 100% of one
of the 8 cores. This is one of those cases where pure MHz power
would be more useful than having so many cores :-)

Matthias