Messages in this thread | | | Date | Fri, 2 Feb 2007 15:33:27 +0100 | From | Paolo Ornati <> | Subject | Re: Slower CPU frequency reported by the kernel |
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On Fri, 2 Feb 2007 15:03:31 +0100 "Francis Moreau" <francis.moro@gmail.com> 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 majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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