Re: HZ from userspace

[Ray Lee]

On Wed, Aug 6, 2008 at 1:48 PM, Piotr JaroszyÅski
<p.jaroszynski@xxxxxxxxx> wrote:
> Hello,
>
> I want to be able to convert starttime from /proc/#/stat to absolute
> time and it seems that I need HZ to do that as it is measured in
> jiffies. How can I get HZ? I have seen some discussion about this but
> haven't found a definite answer. procps is using some hacks do it and
> I would prefer to avoid them.
> I only need a solution for modern kernels, say 2.6.20+ if that matters.

`man sysconf`, in particular you want sysconf(_SC_CLK_TCK).
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