Re: 2.6.15-ck1

[Grant Coady]

On Wed, 4 Jan 2006 14:05:54 -0500, Dave Jones <davej@xxxxxxxxxx> wrote:

>On Wed, Jan 04, 2006 at 12:00:00PM +1100, Con Kolivas wrote:
> >  +2.6.15-dynticks-060101.patch
> >  +dynticks-disable_smp_config.patch
> > Latest version of the dynticks patch. This is proving stable and effective on 
> > virtually all uniprocessor machines and will benefit systems that desire 
> > power savings. SMP kernels (even on UP machines) still misbehave so this 
> > config option is not available by default for this stable kernel.
>
>I've been curious for some time if this would actually show any measurable
>power savings. So I hooked up my laptop to a gizmo[1] that shows how much
>power is being sucked.
>
>both before, and after, it shows my laptop when idle is pulling 21W.
>So either the savings here are <1W (My device can't measure more accurately
>than a single watt), or this isn't actually buying us anything at all, or
>something needs tuning.

Or the laptop was still recharging the battery in both cases?

Grant.
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