linux-kernel - Re: [RFC] why do sensors break CPU scaling

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Message-ID: <CAKR_QVLKtkfVy5AAKj+ay0cQ2NPWrW7CPb8SGF6urD2ooM=VXQ@mail.gmail.com>
Date:   Sat, 1 Feb 2020 01:16:47 +0100
From:   Tom Psyborg <pozega.tomislav@...il.com>
To:     Pavel Machek <pavel@....cz>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        lm-sensors@...r.kernel.org
Subject: Re: [RFC] why do sensors break CPU scaling

On 31/01/2020, Pavel Machek <pavel@....cz> wrote:
> On Wed 2019-11-20 21:42:12, Tom Psyborg wrote:
>> Hi
>>
>> Recently I've needed to set lowest CPU scaling profile, running ubuntu
>> 16.04.06 I used standard approach - echoing powersave to
>> /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor.
>> This did not work as the
>> /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_cur_freq kept returning
>> max scaling freq.
>
> Noone noticed, right?
>
> If you still believe that's problem, you may want to look at
> MAINTAINERS file, and put sensors maintainers in the Cc list.
>
> Best regards,
> 									Pavel
> --
> (english) http://www.livejournal.com/~pavelmachek
> (cesky, pictures)
> http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
>

it is definitely a problem. i've installed radeon-profile and can
monitor both CPU and GPU temps from there without CPU scaling
breakage. CCing related list