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List:       kde-devel
Subject:    Re: [PATCH] powerdevil-remove-cpufreq.patch
From:       Holger Macht <holger () homac ! de>
Date:       2010-03-08 15:27:02
Message-ID: 4B951746.1000502 () homac ! de
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On 03/08/2010 04:06 PM, Sebastian Wiesner wrote:
> On Sunday 07 March 2010 23:57:37 Holger Macht wrote
>> Remove all CPU frequency scaling code from powerdevil and the kcm
>> module. You should never offer those options to the user because he
>> might not understand what the impact is. You only want a dynamic
>> frequency algorithm which is the default these days (ondemand
>> governor). A good explanation is provided in [1].
> 
> I do not object the point, but saving power is really not all I care for.   At 
> least for my part, controlling and limiting  head and noise emission is often 
> much more important than lengthening battery lifetime as much as possible.  In 
> many situations, I prefer a system, that is cool and silent even under heavy 
> load.  Therefore I do not only have a "power plug" and "battery" profile, but 
> also a "silent" and a "movie" profile, both using the powersave governor to 
> limit CPU frequency and hence head, fan speed and noise.
> 
> Of course, if these options are removed, I can still use other tools to limit 
> CPU frequency, but none of them is as convenient as powerdevil with its 
> integration into KDE.  Therefore, I'd really miss these options, if the were 
> removed from powerdevil.

Yes, I know a lot people will miss them and there will be a lot more
complains about this. Believe me, this will hit back on me when users
report this in my employers bugzilla ;-)

People got used to it, but that doesn't change the fact that it's wrong.
If you have thermal problems, those need to be solved in a different way
but not with CPU frequency scaling.

Regards,
 Holger

 
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