[Samba] ballpark perf. numbers

[rhubbell]

Was wondering if anyone's got some ballpark performance numbers
that they can share. It would be great to see some basic numbers,
nothing formal.  Even if it's just observations
from a system you manage or monitor.

I'd be most interested to see how a single server with multiple
clients performs.  Throughput, reads/writes and if possible a
rough view of server memory and cpu per byte and per read and per write.

As you can see I'm just trying to get a feel for how Samba
performs and scales.