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#1 2017-10-13 04:06:12

cfr
Member
From: Cymru
Registered: 2011-11-27
Posts: 5,791

[Solved] Current thinking re. CPU frequency scaling

The page on laptop mode tools has recently been edited with a section which claims that users should disable intel_pstate for power-saving purposes and only keep it if they care more about productivity than power-saving on battery.

https://wiki.archlinux.org/index.php?ti … did=467482

This contradicts everything else I've read on the wiki, the forums and elsewhere. However, most of my research was done some time ago when the driver was pretty new. Has subsequent experience shown the advice to use intel_pstate to be mistaken?

The wiki claims the change adds 'a way to save power'. Is that the current thinking? Is it really true for all hardware, as the wiki  now implies?

Last edited by cfr (2017-10-13 13:02:04)


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#2 2017-10-13 07:30:21

V1del
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Registered: 2012-10-16
Posts: 2,894

Re: [Solved] Current thinking re. CPU frequency scaling

The wiki can be edited by anyone I find this blanket statement quite dubious to be honest. There's a reason pstate exists and is the default governor.

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#3 2017-10-13 07:37:27

jasonwryan
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From: .nz
Registered: 2009-05-09
Posts: 23,355
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Re: [Solved] Current thinking re. CPU frequency scaling

I've rolled back the change as it was not discussed at all.


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#4 2017-10-13 13:02:43

cfr
Member
From: Cymru
Registered: 2011-11-27
Posts: 5,791

Re: [Solved] Current thinking re. CPU frequency scaling

jasonwryan wrote:

I've rolled back the change as it was not discussed at all.

Thanks for following up.


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