CPU Load, kernel, and hardware questions

[Ian Holsman]

Maxim Mass wrote:
> First of all, big thanks to everyone contributing to this project -- this is
> a truly cool idea and it's helping our site performance a hell of a lot.
> 
> I'm currently running 10 3ghz Xeon machines with -- temporarily -- a gig of
> ram each on the 2.4 kernel. My concern is that I'm seeing an average of
> about 40% system cpu usage with only 2% usermode usage. Looking at the
> stats, each box is being hit at roughly 1100 get/set requests a second and
> reading about 71kb/s while writing 361kb/s.  Would moving to 2.6 reduce cpu
> load? Turning off hyperthreading?

you have 10 machines..
why not build a 11th in a similar configuration and try each option you 
mention and see what gives better results?
(or pick a quiet time and reconfigure one of your 10)

> 
> Max
>