Also, take a look at optimizing you MySQL config, there is not much
you can do about the php.
Upgrade your PHP and MySQL as per my previous email. let MySQL run for
at least 48 hours and run this on the server

http://www.day32.com/MySQL/tuning-primer.sh

It will give you advice on what to optimize in MySQL, you have 2GB of
memory and MySQL is not using much of it, that seems like a problem.

On Tue, May 19, 2009 at 11:06 PM, Wicked <nginx-forum@nginx.us> wrote:
> Hello
>
> I have this question postet on vbulletin.com but i have only a anwser for mysql and not for php or php5-cgi
>
> top says this
>
> Cpu(s): 63.2%us, 14.8%sy,  0.2%ni, 21.6%id,  0.0%wa,  0.0%hi,  0.2%si,  0.0%st
>
>  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
>  2261 mysql     15  -5  218m  94m 5364 S   61  4.7 119:27.98 mysqld
>  7529 www-data  20   0  169m  24m  11m R   25  1.2   0:17.98 php5-cgi
>  7533 www-data  20   0  164m  15m 7808 S   25  0.8   0:14.86 php5-cgi
>  7528 www-data  20   0  166m  20m  10m S   23  1.0   0:18.72 php5-cgi
>  7525 www-data  20   0  166m  20m  10m S   22  1.0   0:21.54 php5-cgi
>
>
> and i think this is high server load for 50 user logged into vbulletin board..
>
> i will upgrade my mysql and php..
>
> Posted at Nginx Forum: http://forum.nginx.org/read.php?2,2188,2205#msg-2205
>
>
>