[LAU] Cpu scaling on performance, permanent

Jörn Nettingsmeier nettings at folkwang-hochschule.de
Sat Jan 8 17:29:13 UTC 2011


On 01/08/2011 04:11 PM, Florian Faber wrote:
> On 01/08/11 15:59, Robin Gareus wrote:
>
>> Saving [an enormous amount of] battery power. e.g it's handy when doing
>> field-recordings on a laptop: This Thinkpad X60s w/o CPU freq scaling it
>> consumes ~30 Watt. Lowering the CPU speed can get it down to 10-12 Watts.
>
> Field recordings on a laptop without having a decent power source are a
> very rare situation (where do the preamps get their power from etc.?).
>
> Recordings are a situation where I give a shit on energy consumption, I
> want maximum reliability.

for maximum reliability, i also try to run the machine as cool as 
possible.  so i test beforehand if i can get away with the cpu pinned at 
lowest speed, and then use that when all i do is recording and there's 
not much going on in terms of dsp.




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