scom agent tunning.

Hi ,

we need to tune SCOM Agent performance  as it  consume system resources for a group of servers  ,

1. We need to configure the  agent of scom collect data every 30 minutes .
2. and we need to know which rule or monitor run frequently and
3. which take time and high system resources (CPU,MEMORY and I/O)to collect data 

thanks

Ramy.Shaker