SliTaz Forum

cpufreq autostart

(6 posts) (4 voices)

• Started 11 years ago by charlot
• Latest reply from Trixar_za
• This topic is resolved

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1. 

   charlot
   

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   Member

   Hi!

   I have isntalled cpufrequtils and the kernel modules

   However, everytime I reboot SliTaz, I have to do
   su
   modprobe acpi-cpufreq
   cpufreq-set -c 0 -g ondemand
   cpufreq-set -c 1 -g ondemand

   Because it seems to be not loaded at startup. If I just do "cpufreq-set -c 1 -g ondemand" without the modprobe command, it says the governor is not available...

   And if I do no set cpufreq manually to "ondemand", it is set at performance by default.

   Ho do I launch CPUfreq automatically at startup and how do I make the changes permanent?

   PS: SliTaz is installed on my HDD
   I have Toshiba NB305 notebook
   I am using kernel 2.6.37 with SliTaz 4.0

   Thank you for your help!

   Posted 11 years ago #
2. 

   kultex
   

   offline

   Key Master

   charlot

   the easiest way is to write this three lines to /etc/init.d/local.sh

   modprobe acpi-cpufreq
   cpufreq-set -c 0 -g ondemand
   cpufreq-set -c 1 -g ondemand

   its a pitty, that SliTaz is without cpufrequtils and by default on performance

   Posted 11 years ago #
3. 

   Trixar_za
   

   offline

   Key Master

   Would have put acpi-cpufreq in /etc/rcS.conf file's LOAD_MODULES myself. Both it and local.sh can be accessed from TazPanel's boot section.

   Posted 11 years ago #
4. 

   charlot
   

   offline

   Member

   That's fantastic.

   Thank you both. You are awesome. I went in TazPanel's boot section and added the commands in the local.sh file. Worked like a charm.

   Have a great day!

   Posted 11 years ago #
5. 

   Darjeeling
   

   offline

   Member

   > the easiest way is to write this three lines to /etc/init.d/local.sh
   >
   > modprobe acpi-cpufreq
   > cpufreq-set -c 0 -g ondemand
   > cpufreq-set -c 1 -g ondemand
   >

   A while back someone here in the forum recommended these lines:

   # Enable dynamic CPU frequency scaling
   modprobe acpi-cpufreq
   cd /sys/devices/system/cpu/cpu0/cpufreq
   echo ondemand > scaling_governor
   cd /sys/devices/system/cpu/cpu1/cpufreq
   echo ondemand > scaling_governor

   ... is there any difference?

   Posted 11 years ago #
6. 

   Trixar_za
   

   offline

   Key Master

   Both methods should do the exact same thing - one just uses a command line tool while the other is a more manual approach.

   Posted 11 years ago #

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