cpuspeed usage

[Karsten Hopp]

On Sun, Jun 06, 2004 at 11:17:00AM -0400, Troy Campano wrote:
> Hello, 
> I am new to Fedora Core 2.
> 
> I'm trying to find out how to use the 'cpuspeed' tool.
> I've found examples on the web, but  they seem to be shell scripts for
> tweaking acpi and no the daemon i see in fedora core 2.
> They haven't worked for me.
> 
> Basically, I'd like to know how to change my CPU speed to its lowest
> speed (1.2 GHz) and highest speed (2.4GHz) and back and forth. Can this
> be done with a command? In Fedora Core 1 I think I had to echo  to
> "/proc/acpi/processor/CPU0/performance" but I don't see this anymore in
> Core 2.
> 

Try cpuspeed -h to get a short explanation of the commandline parameters.
'cpuspeed -d'   followed by   'killall -USR2 cpuspeed'    sets your CPU to the
lowest supported clock speed, 'killall -USR1 cpuspeed' sets it back to
normal speed.

    Karsten

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