Mangos performance

[proteus]

I want to know how can I improve performance on an mangos server

it is better to have all in one server with: http, mysql, mangos(realm+logon) or it is better to have more servers and split it

I have 2 servers with good specs

Quad Core -> 8 G RAM -> 2x500G HDD RAID

and

Core 2 Duo -> 4 G RAM -> 1x400G HDD

Tell me how to split these applications so I can have a good performance

I intend to use CentOS 5.4

[arrai]

Mangosd, realmd and mysqld (with mangos tables) on Quad Core

httpd and another mysqld(with http related databases as forum, dynamic page content etc.) on core2duo