10 gigabit Ethernet - Add on question

[Tino Schwarze]

Hi there,

On Sat, Jan 12, 2008 at 12:41:11PM +0000, Peter Grandi wrote:

> >> 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.
> 
> The quickest cipher is RC4 ('arcfour'), then Blowfish and AES
> (which are broadly equivalent but depends on the CPU which one
> is slightly faster).

If you want to measure raw network performance, use netcat:
1. run "netcat -p 4242 -l > somefile" on the receiving side
2. run "netcat server 4242 < somefile" on the sending side

It won't get faster than that and you may combine this with tar for
large file transfers. Of course, it's totally insecure, so only for
local, trusted LANs.

Bye,

Tino.

-- 
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Tino Schwarze * Parkstraße 17h * 09120 Chemnitz