powerd(8)

[sebastian ssmoller]

> 
> I don't think a proportional approach will work in this case, the steps
> are too far apart.
> 
> I also think the switch to full speed is wrong.  Such see-saw
> algorithms waste far too much time decaying.  A less steep flank
> should be used.

what about just taking the algo from estctrl? i dont know what algo exactly
it implements but it worked very well for me ...

regards,
seb