Looking for utility to monitor system resources

Hi Community,

I'm looking for a linux based utility for monitoring following system resources

  1. Memory
  2. CPU Usage

I know there are plenty freewares which poll the data and print in form of html pages. For eg. MRTG, Novel's Linux Monitoring tools etc.
But my requirement is deviated a bit, I'm looking for a tool which can give me standard deviation of range of values (CPU and Memory utilization) for say 5 min or 10 min (configurable) in the form of table of graph or any other means.

This is basically for benchmarking one of our stack on Linux/Unix.

Please let me know if you are aware of any utility that meet above the requirement.

Try this tool

Dimitri (dim) Tools HOMEPAGE