Re: dynamic-hz

Hans Kristian Rosbach
2004-12-13T11:20:12Z

On Mon, 2004-12-13 at 12:02, Andrew Morton wrote:
> Con Kolivas <kernel@kolivas.org> wrote:
> > The performance benefit, if any, is often lost in noise during
> > benchmarks and when there, is less than 1%. So I was wondering if you
> > had some specific advantage in mind for this patch? Is there some
> > arch-specific advantage? I can certainly envision disadvantages to lower Hz.
>
> There are apparently some laptops which exhibit appreciable latency between
> the start of ACPI sleep and actually consuming less power. The 1ms wakeup
> frequency will shorten battery life on these machines significantly. (I
> forget the exact numbers - Len will know).

Is there any recommended lower bound setting?
Would there be a point in recommending lower settings for desktops
running only text consoles opposed to X desktops?

-HK