Largest production memcached install?

[Les Mikesell]

Steve Grimm wrote:
> At peak times we see about 35-40% utilization (that’s across all 4 
> CPUs.) But as you say, that number will vary dramatically depending on 
> how you use it. The biggest single user of CPU time isn’t actually 
> memcached per se; it’s interrupt handling for all the incoming packets.

Have you seen anything to make you think that any particular server NIC 
(or OS for that matter) is more efficient than others in this respect? 
Does any TCP tuning help?  GigE with jumbo frames?

-- 
   Les Mikesell
    lesmikesell at gmail.com