[sagacity]

> 9000 users don't seem that many to make the server run slow...

I second that, especially when you have moved mysql on a separate server. I'm sure you're missing something basic here (as happens to many from time to time :-)).

[digamber_kamat]

Our server is not slow at the moment. It is pretty responsive. But as 9000 reaches closer to 100000 I am sure existing safe-gaurds will not be enough, so I am asking what else can be done.