Re: comments on irc log

["Jordan Crouse" <jordan.crouse-5C7GfCeVMHo@public.gmane.org>]

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On Fri, 18 Mar 2005 19:13:17 +0100
"Pavel Machek" <pavel-+ZI9xUNit7I@public.gmane.org> wrote:

> > 21:52:11< pavelm> I was playing with variable scheduling ticks here,
> > hoping to save some power. 21:52:31< pavelm> How big power savings
> > should I expect? 21:52:48< pavelm> What cpu will benefit most?
> > 21:53:04< pavelm> Is there easy way to measure it?
> > 
> > I played with that too on some PPCs and was surprised by the absence
> > of benefit, but I might have done something wrong, I need to
> > instrument the stuff better.
> 
> Difference between HZ=100 and HZ=1000 was measuerd to be approx. as
> big as disk spinnned up vs. spinned down (i.e. watt or so) by
> seife.... Not *that* unimportant. But it took month or so to get that
> data, because he was basically measuring runtime from full to empty
> battery.

Have any of these patches been published?  I've been playing with
variable ticks too, and I would like to see what other people have been
doing (as so far, the only thing I've managed to do is commit crimes
against nature and the idle loop).

Jordan

-- 
Jordan Crouse
Senior Linux Engineer
AMD - Personal Connectivity Solutions Group
<www.amd.com/embeddedprocessors>





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