Re: battery life with cpufreq

Dominik Brodowski
2005-09-19T09:57:15Z

Hi,

On Mon, Sep 19, 2005 at 11:53:34AM +0200, Fred Blaise wrote:
> Ok.. well.. speedstep* do not work here (my frequency will remain
> stuck where it last was). On the other hand, p4_clockmod, i can see in
> cpuinfo the frequency going up and down.

Yes, the "frequency" which is reported here is how it "feels", kind of a
normalized variant of
x x x x x x x x x x x x x x x x x x x x x x x x
x x x x x x x x x x x x
------------------------------------------------>t

As these "stops" don't last for long periods of time, it is quite correct to
say that the CPU only executes half as much instructions during one second,
so it runs at "half frequency".

Dominik