Originally Posted by Manansala

In "ps aux" if the kernel is not modifed/trimmed, you will see all proceses of the server including other users' processes. To see only your processes, do "ps x" command.

The problem is not php nor mysql in your end. Lots of mysql data conections are being made on the server and couldn't deal with your end properly (this happens all the time with default mysql settings). If you require or use such a huge amount of mysql data connections like right now, you must either have a seperate mysql server (coz as it seems you're on a shared one) or request to adjust mysql settings to allow more connections than the usual.

If it gets any more slower, mysql will die instantly.

ps x - show process for current user
ps aux - show all running processes
who - who is currently on the terminal
finger username - know extended information on the user if set
gfy roks - yes.