[opensuse] CPU frequency

On openSUSE 11.2 on a desktop computer (not a laptop), I ran
cpufreq-info to see what speed my processor was running at. The system
was doing things, so I would imagine it would be set to a higher
frequency. But that seems not to be the case.

cpufreq-info lists (same for all CPUs):

analyzing CPU 0:
driver: acpi-cpufreq
CPUs which need to switch frequency at the same time: 0
hardware limits: 1.60 GHz - 2.40 GHz
available frequency steps: 2.40 GHz, 1.60 GHz
available cpufreq governors: conservative, userspace, powersave, ondemand, performance
current policy: frequency should be within 1.60 GHz and 2.40 GHz.
The governor "userspace" may decide which speed to use
within this range.
current CPU frequency is 1.60 GHz (asserted by call to hardware).

So I tried setting it to 2.4 GHz to see if that happened:

# cpufreq-info -w
1596000

# cpufreq-set -f 2.4GHz

# cpufreq-info -w
2400000

My question is: how/where should I set it so the CPU frequency is
increased when there is system load? I am guessing it is the 'ondemand'
governor that should be selected. But where? I did not see any likely
place in /etc/sysconfig or in an /etc/init.d script.

http://doc.opensuse.org/products/opensuse/openSUSE/opensuse-reference/cha.pmanage.html

had some to say, but did not really satisfy my curiosity. I am guessing
that the default is set to 'powersave'. Does that sound correct?


Yours sincerely,

Roger Oberholtzer

OPQ Systems / Ramböll RST

Office: Int +46 10-615 60 20
Mobile: Int +46 70-815 1696
roger.oberholtzer@xxxxxxxxxx
________________________________________

Ramböll Sverige AB
Krukmakargatan 21
P.O. Box 17009
SE-104 62 Stockholm, Sweden
www.rambollrst.se

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