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