How to get cpu utilization through code with least overhead?

[Vaibhav Jain]

Hi,

I need to write code to get and record the cpu utilization in certain
interval with the least overhead.
Could anybody please advise me on how to proceed ? I tried looking at the
code for "top" command to see
how it works but couldn't figure out much.
I don't want to write script that uses commands and pulls out the results as
I want the overhead to be as small as possible.

Thanks
Vaibhav Jain
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