"It shows NetBSD as a clear leader in uptime. BSD severs and Solaris also in 
general demonstrate high uptime."
"Linux was ahead of Windows every week by more than 0.5%. For your 
understanding 0.5% downtime means 50 minutes per week, or 216 minutes or 3 
hours 36 minutes per month."
"Again NetBSD is a performance leader, followed by Solaris and OpenBSD. Linux 
was ahead of Windows by around 50 milliseconds faster response."
"Summarizing, statistically Linux based servers provide better availability 
and response speed than Windows servers. Absolute leader is NetBSD in both 
categories; OpenBSD and Solaris also demonstrate good results."

Di come OpenBSD possa essere piu' veloce di Linux proprio non so, ma il tutto 
e' qui:
http://blog.mon.itor.us//?p=286

  ngw
-- 
"ma gavte la nata." -- Jacopo Belbo
http://www.tochunky.org