* Venki Pallipadi <[EMAIL PROTECTED]> wrote:
> Current idle time in kstat is based on jiffies and is coarse grained.
> tick_sched.idle_sleeptime is making some attempt to keep track of idle
> time in a fine grained manner. But, it is not handling the time spent
> in interrupts fully.
>
> Make tick_sched.idle_sleeptime accurate with respect to time spent on
> handling interrupts and also add tick_sched.idle_lastupdate, which
> keeps track of last time when idle_sleeptime was updated.
>
> This statistics will be crucial for cpufreq-ondemand governor, which
> can shed some conservative gaurd band that is uses today while setting
> the frequency. The ondemand changes that uses the exact idle time is
> coming soon.
nice stuff! I've added your patch to the scheduler queue - but this will
probably be 2.6.24 material.
Acked-by: Ingo Molnar <[EMAIL PROTECTED]>
Ingo
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