On Sat, 2007-02-10 at 12:01 +1100, Tony Crouch wrote: > Hi All, > I was wondering if there is a way to make the cpuspeed CPU throttling > program permanently throttle to an elected CPU speed. > > For example, I have a 3Ghz CPU in my laptop which is extremely prone to > over-heating and freezing. But while the laptop is running at 1.6Ghz it is > fine. > > The problem I am facing is keeping the CPU at this lower speed when > services kick into gear (i.e. yum update, makewhatis, etc. etc.). > > I was wondering if anyone might have an idea as to how this permanent > throttling can be done. Several ways. The most correct way is to first: # cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies The values displayed are in KHz (kilohertz). Find your appropriate maximum frequency (my laptop shows 2000000, 1800000, and 1000000 corresponding to 2GHz, 1.8GHz and 1GHz). Next, edit your "/etc/cpuspeed.conf" file and insert that value into the "MAXSPEED=" entry. On reboot, you'll limit your speed. To do it manually now, do "cpuspeed -M 1600000" as the root user. ---------------------------------------------------------------------- - Rick Stevens, Senior Systems Engineer rstevens@xxxxxxxxxxxxxxx - - VitalStream, Inc. http://www.vitalstream.com - - - - When all else fails, try reading the instructions. - ----------------------------------------------------------------------
