Re: cpu frequency management opteron lost?
I'm a pro-audio Linux user. CPU freq scaling is important for me.
Debian has a script that runs on startup, it will force ondemand. I
don't remember the location, but it must be some rc.
On Tue, 2012-05-01 at 17:29 +0000, Camaleón wrote:
> On Tue, 01 May 2012 16:30:12 +0200, Joost Kraaijeveld wrote:
>
> > I used to have my CPU frequency scaled back to 1000 Mz (from 2200 MHz)
> > which I could see in my Gnome2 applet.
> >
> > 1. Is there an application with which I can check the actual speed?
>
> cpufreq-info -e
hwinfo
> > 2. Can I manage the speed?
>
> Mmm... yes.
Mmm... yes too.
> > 3. If so, how?
>
> cpufreq-set
>
> > Running "/etc/init.d/cpufreqd start" just reports:
> > panoramix:/home/jkr# /etc/init.d/cpufreqd start
> > Starting CPU Frequency daemon: cpufreqd failed!
>
> I don't seem to have that service (in lenny and wheezy I've got
> "cpufrequtils" instead) but if I were you, I'd take a look into these two
> files:
>
> /usr/share/doc/cpufreqd/README.Debian
> /etc/default/cpufreqd
>
> Maybe is that you need to configure something :-?
>
> > I have looked at the output of "cpufreqd -D -V 7" but that did not help.
> >
> > cpufreq-utils:
> > panoramix:/home/jkr# cpufreq-info
> > cpufrequtils 007: cpufreq-info (C) Dominik Brodowski 2004-2009 Report
> > errors and bugs to cpufreq@vger.kernel.org, please. analyzing
> > CPU 0: no or unknown cpufreq driver is active on this CPU
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> (...)
>
> This can give you some clue.
>
> > lsmod:
> > panoramix:/home/jkr# lsmod | grep cpu
> > cpufreq_userspace 12576 0
> > cpufreq_conservative 13147 0
> > cpufreq_stats 12866 0
> > cpufreq_powersave 12454 0
>
> I can't see "acpi_cpufreq" loaded... hum, wait, for AMD should be
> "powernow-k8" insetad, right? Is it loaded?
>
> Greetings,
Hmm? What kernel do you use. The config of the kernel is important.
As superuser run
grep CONFIG_CPU_FREQ_GOV /boot/config-$(uname -r)
;)
Ralf
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