Thomas Donnelly wrote:
Hasso Tepper wrote:
Matthew Dillon wrote:
est is far prefered over the ACPI idle hook. The ACPI hook is a
disaster and frankly shouldn't be used.
Well ... I have here hacked together est module for core 2 CPU's
(mainly work done by Michal Belczyk [1]) and the result is that
although changing voltage has effect, changing frequency doesn't have
any effect to power usage or heat. CPU is just slower. I havent
digged deep into it yet, though ...
[1] -
http://leaf.dragonflybsd.org/mailarchive/bugs/2007-04/msg00099.html
Just thought I would chime in here. Most people already know this,
but, the reason that the lower frequency is brought into play is that
the decreased voltage isn't stable at that frequency. A lower
frequency allows a lower voltage.
-=Tom
