Forum lags when 450 + users online !

[Lautaro]

Hello,

I'm having a serious problem with my forum / server. I believe there's something wrong configured or w/e it is that it's making my forum to lag ( A LOT ) when there are 450 or more users online.

My partner said he was checking the MySQL "database connections" while the forum was lagged and he saw there were running like 300 queries at the same time ! This seems to be happening only when there are 450 or more people surfing my forum.

I believe I shouldn't have any of this problems, here's my dedicated server specs:

Operating System: CentOS Linux 5.5
Kernel & CPU: Linux 2.6.18-194.26.1.el5 on x86_64
Processor Info: Intel(R) Xeon(R) CPU E5620 @ 2.40GHz, 16 cores
Real Memory: 15.67 GB total, 10.41 GB used
Virtual Memory: 9.74 GB total, 170 MB used
Local Disk Space: 441.74 GB total, 35.70 GB used
Up stream / Down stream ( internet connection ): 1000mbps
Forum Link: http://forum.gamezaion.com/

When I got the server it had cPanel/WHM installed, but I am now using "Webmin", however cpanel is still there (not sure if this affects at all ).


Thanks !

Regards,
Lautaro.