You are not logged in.

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

cfr
Member
From: Cymru
Registered: 2011-11-27
Posts: 7,132

[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)


CLI Paste | How To Ask Questions

Arch Linux | x86_64 | GPT | EFI boot | refind | stub loader | systemd | LVM2 on LUKS
Lenovo x270 | Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz | Intel Wireless 8265/8275 | US keyboard w/ Euro | 512G NVMe INTEL SSDPEKKF512G7L

Offline

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

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 21,657

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.

Offline

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

jasonwryan
Anarchist
From: .nz
Registered: 2009-05-09
Posts: 30,424
Website

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

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


Arch + dwm   •   Mercurial repos  •   Surfraw

Registered Linux User #482438

Offline

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

cfr
Member
From: Cymru
Registered: 2011-11-27
Posts: 7,132

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.


CLI Paste | How To Ask Questions

Arch Linux | x86_64 | GPT | EFI boot | refind | stub loader | systemd | LVM2 on LUKS
Lenovo x270 | Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz | Intel Wireless 8265/8275 | US keyboard w/ Euro | 512G NVMe INTEL SSDPEKKF512G7L

Offline

Board footer

Powered by FluxBB