CPU Utilization Not Correct or Averaging

We have a couple other monitoring tools here

in-house; although Hobbit is catching on more.

I've had questions about CPU Utilization, The charts

don't seem to correlate with the other two monitoring

tools. As an example, The other tools show CPU

Utilization at 80% during a couple hours at night,

and Hobbit shows 26% Utilization.

Both the other Tools show 80% utilization during those

hours, but Hobbit doesn't.

I looked into this once before, and I know it depends on

how the data sampling is being done.

Any ideas on this would be helpful.

Thanks.James