General performance tuning

[anewday]

If you do not use suEXEC, 20-40 should be a good value for PHP_LSAPI_CHILDREN and "Max Conns".
If you use suEXEC, set "PHP suEXEC Max Conn" between 5-10 is a good start point.

We usually set static RPS to 20, and set dynamic RPS to 1. you can also set connection limits and bandwidth throttling for anti-DDoS purpose.

Isn't that too low for a forum since it has many php pages and restricting it to 1 a second will slow down the loading times.

 

[layer]

Isn't that too low for a forum since it has many php pages and restricting it to 1 a second will slow down the loading times.

If I'm not mistaken, this is on a per client (i.e. visitor) basis (for DDOS Protection), not per site basis.

 

[anewday]

Yes, that's what I meant. It'll slow down loading the forums for a visitor, wouldn't it?

 

[layer]

Yes, that's what I meant. It'll slow down loading the forums for a visitor, wouldn't it?

Not under normal conditions. Typically a visitor won't be browsing so quickly that they would hit that limit.

 

[anewday]

But it doesn't take much to exceed 1 dynamic request a second.

 

[layer]

But it doesn't take much to exceed 1 dynamic request a second.

Give it a try and find out what works out best for you...