[ubuntu-uk] downloading slow torrents & energy consumption

[javadayaz]

i raised this topic of torrents and low powered green machines a while ago
if anyone remembers!

2009/4/9 Daniel Drummond <dmdrummondx at gmail.com>

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> alan c wrote:
> > doug livesey wrote:
> >> Hi -- I (sort of) noticed a while back some marketing gumph that
> suggested
> >> that Ubuntu servers can be configured to reduce power consumption when
> they
> >> are not under heavy load, and was wondering if something similar was
> >> available (generally, I mean, not *just* for Ubuntu) for domestic use.
> >> The obvious case that springs to mind is when I have a long download
> going &
> >> want to leave my PC on overnight.
> >> (Currently, I generally don't, as I feel bad about the energy I'm
> wasting.)
> >> So would it be possible to leave a download going & in some way put the
> rest
> >> of your computer to sleep to save on power?
> >> Is there anything that does that?
> >
> > I have a machine  on 24/7 gently seeding various torrents and my
> > pragmatic solution is to choose the oldest slowest machine that can
> > cope, in my case a PII 350MHz. I have not done any measurements but my
> > guess is that such a machine will consume relatively low power,
> > obviously I turn the monitor off.
> This isn't necessarily the lowest power machine - a newer chip will be
> more efficient, using less power for a particular speed. I've been doing
> a little research into low power computers for use as a basic home
> server, and many people recommend using a laptop, or a laptop processor
> for minimal power usage. For example most amd turion processors run at
> 25/35 Watts, while the same speed desktop processors run at 65 Watts or
> more.
>
> Ensuring that you have your machine to run with a variable cpu frequency
> (I think this is fairly standard in modern distro) and setting it to
> powersave, or ondemand will help minimise power consumption, as will
> removing any non-essential hardware (sound cards, video cards - if you
> can use on board video) as well as turning off monitor(if you use one at
> all on a server) will help too.
>
> Dan
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-- 
Javad
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