Re: [discussion]sched: a rough proposal to enable power saving inscheduler

From: Arjan van de Ven
Date: Wed Aug 15 2012 - 21:21:14 EST


On 8/15/2012 6:14 PM, Rik van Riel wrote:
>
> The idea Matthew and I have is simply planning for a shorter
> sleep period (discarding the outliers to the high end in the
> function once known as detect_repeating_patterns), and going
> to a deeper C state if we have significantly overslept.
>
> The new estimation code is easy, but for the past days I have
> been looking through the timer code to figure out how such a
> timer could fire, and how we could recognize it without it
> looking like a normal wakeup, if we do not end up accidentally
> waking up another CPU, etc...

this sort of code we recently developed already in house;
i'm surprised it hasn't been pasted to lkml yet


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/