powernowd and laptop mode

Dmitriy Kropivnitskiy nigde at mitechki.net
Wed Mar 30 09:14:38 CST 2005

As far as I understand, this cannot be done with powernowd. Here is a
quote from powernowd man page:

> What  good  is  having  a  nice powerful  laptop  if you can’t use it
> at full speed, even for a few seconds, while on battery power?

The idea behind the powernowd is to up the frequency when some process
wants to use more CPU and down the frequency when noone is using it. To
save more power you can try to use passive mode (goes to lowest freq as
soon as usage drops below threshold and gradually raises freq once usage
goes up) and play with thresholds. The defaults are 80% and 20%. You can
change that to 100% and 100% together with passive mode this should make
sure, that your CPU freq is gradually upped if some process wants to use
all of your CPU and dropped to the lowest as soon as CPU load goes below

On Tue, 2005-03-29 at 14:06 -0500, Shambler wrote:
> No ideas so far? All i want is to FORCE powernowd to use a certain
> frequency and then unaware of the cpu load stay fixed with it.
> -- 
> Shambler

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