Difference between revisions of "Talk:CPU frequency scaling"

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== Pstate governor; disabling turbo boost: using 'wrmsr' utility from msr-tools as echoing wouldn't do squat ==
 
== Pstate governor; disabling turbo boost: using 'wrmsr' utility from msr-tools as echoing wouldn't do squat ==
  
In my case echoing {{ic|/sys/devices/system/cpu/intel_pstate/no_turbo}} did not work. I had to use appropriate {{ic|wrmr}} command on each individual core to disable it. More info [https://askubuntu.com/a/619881 here]. You think it's worth mention?
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In my case echoing {{ic|/sys/devices/system/cpu/intel_pstate/no_turbo}} did not work. I had to use appropriate {{ic|wrmr}} command on each individual core to disable it. More info [https://askubuntu.com/a/619881 here]. You think it's worth mention? -- [[User:Soocki|Soocki]] ([[User talk:Soocki|talk]]) 10:15, 15 November 2018 (UTC)
  
--[[User:Soocki|Soocki]] ([[User talk:Soocki|talk]]) 10:15, 15 November 2018 (UTC)
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:Which CPU do you have? What error did you get when trying the echo command? -- [[User:Lahwaacz|Lahwaacz]] ([[User talk:Lahwaacz|talk]]) 17:19, 15 November 2018 (UTC)
  
:Which CPU do you have? What error did you get when trying the echo command? -- [[User:Lahwaacz|Lahwaacz]] ([[User talk:Lahwaacz|talk]]) 17:19, 15 November 2018 (UTC)
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::I was able to echo the file but it did not disable turbo (as reported by {{ic|i7z}} and {{ic|cpupower}}). CPU is i7-4710MQ on a t440p Thinkpad. -- [[User:Soocki|Soocki]] ([[User talk:Soocki|talk]]) 23:29, 15 November 2018 (UTC)

Revision as of 23:29, 15 November 2018

CPU frequency driver

"Note: As of kernel 3.4; the native cpu module is loaded automatically"

I tested today in my netbook with Atom 330 with kernel 3.7 [testing]. the autoload module not working (after edit modules-load.d and reboot)

this still workinkg?

greetings

-- Sl1pkn07 (talk) 16:00, 21 January 2013 (UTC)

Worked for me now. More than 4 years after the Sl1pkn07's post. Most probably with other setup then his. Regid (talk) 22:27, 17 March 2017 (UTC)

Intel Sandybridge and higher CPU governors

Long story

Short story

Sandybridge+ CPUs use specific Intel driver that has 2 governors: powersave (default) and performance. If you wish to use another governor, you need to disable this driver (more in the link above).Tharbad (talk) 15:55, 8 March 2016 (UTC)

Thermald and Haswell CPU's

Should probably mention that thermald doesn't fully work with Haswell CPU's?

See: https://github.com/intel/thermal_daemon/issues/135 Also: https://github.com/intel/thermal_daemon/issues/82

—This unsigned comment is by Utini2000 (talk) 13:55, 9 August 2017‎. Please sign your posts with ~~~~!

Pstate governor; disabling turbo boost: using 'wrmsr' utility from msr-tools as echoing wouldn't do squat

In my case echoing /sys/devices/system/cpu/intel_pstate/no_turbo did not work. I had to use appropriate wrmr command on each individual core to disable it. More info here. You think it's worth mention? -- Soocki (talk) 10:15, 15 November 2018 (UTC)

Which CPU do you have? What error did you get when trying the echo command? -- Lahwaacz (talk) 17:19, 15 November 2018 (UTC)
I was able to echo the file but it did not disable turbo (as reported by i7z and cpupower). CPU is i7-4710MQ on a t440p Thinkpad. -- Soocki (talk) 23:29, 15 November 2018 (UTC)