FMS Performance Tuning

Hello!

I m working with a customer that uses FMS.

Hardware Configuration:

Intel(R) Xeon(R) CPU           L5420  @ 2.50GHz, 8 cores

16 GB Ram

Connection: 10 Gbps - Fiber Network Card

We use this server as replication, and the problem is related to the performance.

The FMS Admin Console, display Flash Server CPU Usage near to 100%, when reach 4000 connected users, using only 2 gbps of connection.

On this way, the live streaming, start to frooze.

I try to adjust using the tunning guide from FMS 4.5 manual but make no visible effect.

I m wrong, or this server could handle much more users than 4.000?

Where can I found a good tune guide for FMS?

Your help is much appreciated!

Thanks,
Rafael