How to get cpu utilization through code with least overhead?

[Vaibhav Jain]

Thanks !!
I looked at the code for top command again and I could see /proc/stat being
used. So I guess
that should be the best way to do it.


On Fri, Jul 29, 2011 at 12:15 PM, Jonathan Neuschäfer <j.neuschaefer at gmx.net
> wrote:

> On Thu, Jul 28, 2011 at 04:56:16PM -0700, Vaibhav Jain wrote:
> > Hi,
> >
> > Is there any other way to do this? If I need to write a kernel module
> that
> > needs to get cpu utilization
> > should I still use proc/stat ? Is there a kernel function that can be
> used
> > in a module ?
>
> To get the information that's shown in /proc/stat, I'd suggest having a
> look at fs/proc/stat.c in the kernel tree.
>
> HTH,
>         Jonathan Neuschäfer
>
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