Re: [PATCH 2.6.25-rc3] cpuidle: fix cpuidle time and usage overflow

Yi Yang
2008-02-25T10:26:07Z

On Mon, 2008-02-25 at 11:15 +0100, Ingo Molnar wrote:
> * Yi Yang <yi.y.yang@intel.com> wrote:
>
> > cpuidle C-state sysfs node time and usage are very easy to overflow
> > because they are all of unsigned int type, time will overflow within
> > about two hours, usage will take longer time to overflow, but they are
> > increasing for ever.
> >
> > This patch will convert them to unsigned long long.
>
> what happens if such an overflow happens - any particular regression or
> other misbehavior, or just funny looking stats in sysfs?
They are just stats info in sysfs, cpuidle's behaviors don't depend on
them. I didn't notice any regression or misbehaviors.

>
> Ingo
> -
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