Hi Dear Saumil
I think the first what you must have is see the performance of this server.
For example in SSH with the command: top
top provides an ongoing look at processor activity in real time. It displays a listing of the most CPU-intensive tasks on the system, and can provide an interactive interface for manipulating processes. It can sort the tasks by CPU usage, memory usage and runtime.
Please run the command top for see what service or process are overload and sent me a printscreen.
After you will doing that i can suggest a best configuration for you.
Best regards, Pavel
(Edited by Visvanath Ratnaweera - original submission Wednesday, 7 March 2012, 02:31 PM)