Snort performance and maintenance

[Hubert Edward kIYIMBA <hekiyimba () yahoo com>]

My snort IDS has got 40GB Hard disk, 3GHz microprocessor speed and 1GB RAM. It is connected so as to capture traffic 
from the internet into the network. This machine has been running for three months now.
 
The machine has deteriorated in performance. It is so slow. The ACID takes so long to load. The current statistics from 
the machine is as follows
 
 using command # free -t -m the following is displayed
 
 TotalusedfreesharedbufferscashedMem99698790652777-/+bufferscasche 147849   swap20472071840   Total304411951849   

 

using the top command I discovered that MS-SQL takes 40 to 50 % CPU usage full time.

 

I am seeking advice on how to improve the performance of the IDS

 

Thanks

                
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