[lkml]   [2007]   [Feb]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: Slower CPU frequency reported by the kernel
On Fri, 2 Feb 2007 15:03:31 +0100
"Francis Moreau" <> wrote:

> it's seems that the cpu freq scaling depends on a user space tool.

Yes, it depends on the selected governor.

In the case of "userspace" governor you (or a program) can set the speed
writing to "/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed".

Usually a deamon monitor the CPU usage and increase the frequency when
you need it.

> Could you tell me how I can find if there're such tools installed on
> my computer ?

"ps -A" and look for something like "cpufreqd"

There are different deamon for this: cpufreqd, cpudyn...

Anyway it is started by an init script, so you should find it looking
at "ls /etc/init.d/".

Paolo Ornati
Linux 2.6.20-rc7 on x86_64
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2007-02-02 15:37    [W:0.035 / U:0.308 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site