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List:       kde-devel
Subject:    Re: [PATCH] powerdevil-remove-cpufreq.patch
From:       Sebastian =?utf-8?q?K=C3=BCgler?= <sebas () kde ! org>
Date:       2010-03-08 12:39:16
Message-ID: 201003081339.16907.sebas () kde ! org
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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].

+1. I agree that this option does not even remotely cover the intricacies of CPU 
power management nowadays and is more confusing than beneficial.

If the ondemand governor doesn't scale up when more CPU cycles would be needed, 
that's a kernel bug and shouldn't be papered over by UI options in PowerDevil. For 
the downscaling, that is bogus anyway since doing the work as quickly as possible and 
going back to sleep to save power is more efficient than doing the work slower and 
thus keeping the CPU awake longer.

For those that really, really want this, you can run solidshell automatically from 
"Edit Profiles" -> "CPU and System" -> "When loading a profile, execute:"
-- 
sebas

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