Forum Server Load problem
 

Hello!

Since we have 4.0.8 the server is working at full capacity, 90-99% CPU. It's a dedicated server, dual Xenon with 4GB RAM so there is no motive to use all it's resources. Before we had 3.8.5 and at 600-900 users online we used max 40%-50%, now with 500-600 users online we use all the server-'s CPU and the forum is working very bad, usually not loading the pages and we have to wait up to 30-60 seconds to load a page. We tried to find out what the problem is, we deactivated all the plugins, we recounted all, we repaired and optimize the tables, all it seems fine, except that the server is full... this does not seem normal to me.

We are not flooded, the server works fine, we already checked all the processes and it seems just fine. We also tryed to use server load option (NIX) but it's not doing anything good, keeps half of our daily users away.

Any suggestions?