Issues with powerd

[Kevin Oberman]

Sorry. Can't type.

> Date: Wed, 09 Mar 2005 11:29:38 -0800
> From: "Kevin Oberman" <oberman at es.net>
> Sender: owner-freebsd-acpi at freebsd.org
> 
> I have finally had a little time to play with powerd and I didn't find
> adaptive mode worked too well for me on my T30 running a Gnome desktop.
> 
> The effect of running powerd was to move the freq in a rapid sawtooth
> dropping quickly to 150 MHz and them jumping back to 1800 and
> repeating. If the CPU was busy, the low point of the sawtooth would be
> elevated to 300or 600, but the basic pattern was constant oscillation.
> 
> I looked at the source and decided that two things were wrong.
> 
> 1. Dropping to half of the initial CPU speed was to a good choice. The
                                              not--^^
> drop is speed was too quick and it resulted in reducing the number of
> CPU performance levels to a small number instead of the 15 that should
> be available.
-- 
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman at es.net			Phone: +1 510 486-8634