[ltp] Re: When/where/what for low power consumption?

[Peter B. West]

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Felix E. Klee wrote:
> Andreas Seltenreich wrote:
>> IMHO a very elegant solution is to nice(1) those apps.
> 
> Interesting, but I'm not sure if it really works since nice only lowers 
> the priority and not necessarily the processing power, at least that's 
> how I understand it works (as you can see I'm not a frequent user of nice).
> 
>> cpufreq/powernowd/the on_demand governor/etc ignore processes which
>> are niced above 0, so it won't increase frequency nor voltage when
>> e.g. a wannabe-webmaster thought endless-looping in JavaScript is good
>> engineering.
> 
> But sometimes one wants to give the web browser full resources and full 
> priority, for example when looking at a new Thinkpad using the Java 3D 
> applet on the IBM/Lenovo site. :-)
> 
> For me it seems to be much simple to just make sure that the system is 
> in power savings mode (low CPU freq, dim display, etc.) when running on 
> batteries.
> 

Have a look at the Gentoo documentation on power management at 
http://www.gentoo.org/doc/en/power-management-guide.xml

The Gentoo documentation is, overall, excellent, and readily accessible 
from the Gentoo front page.  (I've just migrated from Gentoo to Suse, 
for reasons not connected with the documentation.)

Peter
-- 
Peter B. West <http://cv.pbw.id.au/>
Folio <http://defoe.sourceforge.net/folio/>

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