[Tfug] Re-nice... erm, and runlevels.

[Bexley Hall]

Hi, Brian,

Brian Murphy <murphy+tfug at email.arizona.edu> wrote:

> From what I've read on various lists, people working on power
> efficiency want their improvements made to all systems.  Laptops are
> just the obvious case.

Exactly.  And, various processor families achieve this in
different ways.  Some let you power down parts of the processor.
Others let you tweak the clock frequency.  Still others
let you diddle with cache activity.

And, that's just *inside* the processor.  SoC implementations
can power down certain peripherals, even chunks of "main
memory".

All this without even touching rotating media, displays, etc.

(I think some cores are in the 50W region nowadays -- you can
melt the damn thing if coolling fails)

> Matthew Garrett has blogged some interesting things about
> it (like
> screensavers: http://mjg59.livejournal.com/106581.html). 
> Here is where
> he sums up some power saving tips:
> 
> http://www.codon.org.uk/~mjg59/power/good_practices.html

These seem to be all Intel/AMD related(?)
 
--don