Getting cpufreqd to work...

miggols99 · 2007-08-24 21:36:22

I'm trying to get cpufreqd to work. I've got a pentium 4, which I'm sure is capable of cpu freqency scaling. How do I do it and what module do I have to load?

rayjgu3 · 2007-08-24 23:06:10

check the wiki alot of stuff there just search it
http://wiki.archlinux.org/index.php/SpeedStep

miggols99 · 2007-08-25 08:37:30

I tried all that but I get an error:

FATAL: Error inserting acpi_cpufreq (/lib/modules/2.6.22-ARCH/kernel/arch/x86_64/kernel/cpufreq/acpi-cpufreq.ko): No such device

1311219 · 2007-08-25 11:31:28

Just a random thought, does that file exist for you? (/lib/modules/2.6.22-ARCH/kernel/arch/x86_64/kernel/cpufreq/acpi-cpufreq.ko)
If it does, and you have just upgraded the kernel without restarting, then you might be using an old kernel and try to load a newer module.

JGC · 2007-08-25 13:57:31

Pentium 4 works only with p4-clockmod module. Be aware of the fact that a pentium 4 is extremely slow and unusable when running at lower speeds. Another thing is that clockspeed changing is extremely slow also, making a pentium 4 with speedstepping useless when using the ondemand/conservative governors (yes, cpufreqd is obsolete)

miggols99 · 2007-08-25 16:27:12

Pentium 4 works only with p4-clockmod module. Be aware of the fact that a pentium 4 is extremely slow and unusable when running at lower speeds. Another thing is that clockspeed changing is extremely slow also, making a pentium 4 with speedstepping useless when using the ondemand/conservative governors (yes, cpufreqd is obsolete)

So if it's obsolete, what should I use?

1311219 · 2007-08-25 16:37:00

cpufrequtils is a start (and you probably already have it, since you are using cpufreqd), it's configuration depends on what situation you are in:

In case you are just wanting to use the ondemand guardian, it will be simple, and if you want it to lower the frequency after a given time of inactivity, it won't be to difficult either.

But if you are going to have a more complicated setup (like if you are going to use it on a laptop, and want to have different guardians depending on if it's connected to a charger), you will have to spend some more time gluing together different systems (the power connection, for example, could be handled as a acpid event, in which you order cpufreq to switch guardian).

miggols99 · 2007-08-25 16:59:24

It looks like SpeedStep is the best thing for me to use. I've found a page on the wiki. But I'm still getting the same error...

Arch Linux

#1 2007-08-24 21:36:22

Getting cpufreqd to work...

#2 2007-08-24 23:06:10

Re: Getting cpufreqd to work...

#3 2007-08-25 08:37:30

Re: Getting cpufreqd to work...

#4 2007-08-25 11:31:28

Re: Getting cpufreqd to work...

#5 2007-08-25 13:57:31

Re: Getting cpufreqd to work...

#6 2007-08-25 16:27:12

Re: Getting cpufreqd to work...

#7 2007-08-25 16:37:00

Re: Getting cpufreqd to work...

#8 2007-08-25 16:59:24

Re: Getting cpufreqd to work...

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