The Debian way for ondemand cpufreq governor

[T o n g]

Hi,

I am able to use the 2.6 kernel ondemand cpufreq governor, but I just
noticed that I have to do 'modprobe powernow-k8' and change the cpufreq
governor from performance to ondemand each time after I reboot.

What's the Debian way to enable ondemand cpufreq governor by default
(installing as minimum packages as possible)?

Thanks

[Alex Samad]

Post by T o n g
Hi,
I am able to use the 2.6 kernel ondemand cpufreq governor, but I just
noticed that I have to do 'modprobe powernow-k8' and change the cpufreq
governor from performance to ondemand each time after I reboot.
What's the Debian way to enable ondemand cpufreq governor by default
(installing as minimum packages as possible)?

look at this package cpufrequtils and then look in here
/etc/init.d/cpufrequtils

Post by T o n g
Thanks

--
The garden is in mourning;
The rain falls cool among the flowers.
Summer shivers quietly
On its way towards its end.

Golden leaf after leaf
Falls from the tall acacia.
Summer smiles, astonished, feeble,
In this dying dream of a garden.

For a long while, yet, in the roses,
She will linger on, yearning for peace,
And slowly
Close her weary eyes.
-- Hermann Hesse, "September"

[T o n g]

Post by Alex Samad

Post by T o n g
What's the Debian way to enable ondemand cpufreq governor by default
(installing as minimum packages as possible)?

look at this package cpufrequtils and then look in here
/etc/init.d/cpufrequtils

If I don't 'modprobe powernow-k8' manually, this is what I got:

% aptitude install cpufrequtils
The following NEW packages will be installed:
cpufrequtils
0 packages upgraded, 1 newly installed, 0 to remove and 4 not upgraded.
Need to get 33.6kB of archives. After unpacking 262kB will be used.
Setting up cpufrequtils (004-2) ...
CPUFreq Utilities: Setting ondemand CPUFreq governor...disabled,
governor not available...done.

Doesn't seem to be helping from my point of view...

[Roberto De Oliveira]

 CPUFreq Utilities: Setting ondemand CPUFreq governor...disabled,
governor not available...done.

Did you the governor kernel module?. You can find this modules with:
'modprobe -l cpufreq\*'. If you want to load these modules
automatically, just add their names to /etc/modules.

[Wackojacko]

Post by T o n g

Post by Alex Samad

Post by T o n g
What's the Debian way to enable ondemand cpufreq governor by default
(installing as minimum packages as possible)?

look at this package cpufrequtils and then look in here
/etc/init.d/cpufrequtils

% aptitude install cpufrequtils
cpufrequtils
0 packages upgraded, 1 newly installed, 0 to remove and 4 not upgraded.
Need to get 33.6kB of archives. After unpacking 262kB will be used.
Setting up cpufrequtils (004-2) ...
CPUFreq Utilities: Setting ondemand CPUFreq governor...disabled,
governor not available...done.
Doesn't seem to be helping from my point of view...

You need to edit /etc/default/cpufrequtils and read the comments.

HTH

Wackojacko

[Andrew Malcolmson]

Post by Wackojacko
You need to edit /etc/default/cpufrequtils and read the comments.

Actually /etc/init.d/cpufrequtils

The locatation of this file appears to be changed from an earlier version.

[T o n g]

Post by Andrew Malcolmson

Post by Wackojacko
You need to edit /etc/default/cpufrequtils and read the comments.

I don't have such file as /etc/default/cpufrequtils*, so nowhere to read
the comments from.

Post by Andrew Malcolmson
Actually /etc/init.d/cpufrequtils

I took a look at it, but still don't know how not to 'modprobe powernow-
k8' manually.

Any specific hints?

thanks

[Eduardo M KALINOWSKI]

Post by T o n g
I took a look at it, but still don't know how not to 'modprobe powernow-
k8' manually.
Any specific hints?

/etc/modules

Just add the module name there.
--
micro:
Thinker toys.

Eduardo M KALINOWSKI
***@kalinowski.com.br

[Dominique Dumont]

Post by T o n g

Post by Wackojacko
You need to edit /etc/default/cpufrequtils and read the comments.

I don't have such file as /etc/default/cpufrequtils*, so nowhere to read
the comments from.

Copy one of the sample files in /usr/share/doc/cpufrequtils/examples/
to /etc/default/cpufrequtils and edit at will.

HTH
--
Dominique Dumont
"Delivering successful solutions requires giving people what they
need, not what they want." Kurt Bittner

irc:
domidumont at irc.freenode.net
ddumont at irc.debian.org

[Nate Bargmann]

Post by T o n g
Hi,
I am able to use the 2.6 kernel ondemand cpufreq governor, but I just
noticed that I have to do 'modprobe powernow-k8' and change the cpufreq
governor from performance to ondemand each time after I reboot.
What's the Debian way to enable ondemand cpufreq governor by default
(installing as minimum packages as possible)?

I don't know about the "Debian Way" but my preferred package is
'powernowd' which, despite its name, works very well with the Pentium M
CPU in my T41. It also works well with the Pentium III in my T23. IT
seems to do a good job of managing the demand governor and I don't
recall having to do anything special for it to work.

- Nate >>
--
"The optimist proclaims that we live in the best of all
possible worlds. The pessimist fears this is true."

Ham radio, Linux, bikes, and more: http://n0nb.us/index.html

[T o n g]

. . . I have to do 'modprobe powernow-k8' and change the cpufreq
governor from performance to ondemand each time after I reboot. . .

. . . my preferred package is 'powernowd'. . . IT
seems to do a good job of managing the demand governor and I don't
recall having to do anything special for it to work.

Nope, having installed 'powernowd' and reboot, I still need to 'modprobe
powernow-k8' manually.

Do you have 'cpufrequtils' installed as well?

[T o n g]

Post by T o n g

. . . I have to do 'modprobe powernow-k8' and change the cpufreq
governor from performance to ondemand each time after I reboot. . .

The simple solution is to install 'cpufrequtils', then *reboot*
(cpufrequtils enables CPUFreq at boot time if the correct cpu
driver is found).

Post by T o n g

. . . my preferred package is 'powernowd'. . . IT seems to do a good
job of managing the demand governor and I don't recall having to do
anything special for it to work.

Nope, having installed 'powernowd' and reboot, I still need to 'modprobe
powernow-k8' manually.
Do you have 'cpufrequtils' installed as well?

Yep, the magic is 'cpufrequtils', not 'powernowd'.

So the Debian way to enable ondemand cpufreq governor by default
(installing as minimum packages as possible) is (merely) installing
'cpufrequtils'.

cheers

[Todd A. Jacobs]

Post by T o n g
What's the Debian way to enable ondemand cpufreq governor by default
(installing as minimum packages as possible)?

If you are running some sort of userland daemon (e.g. laptop-mode) to
manage power, you'll probably have a setting to change under
/etc/default/ to enable your governor of choice. Otherwise, add your
module to /etc/modules and your governor of choice to /etc/sysctl.conf.