Processor Scaling

Derek Broughton derek at
Tue Jan 13 02:28:59 UTC 2009

NoOp wrote:

> Might be interesting to connect one of these things & test:
> [P3 P4460 Kill-A-Watt EZ Electricity Usage Monitor]

I connect _everything_ to a Kill-a-watt - living off-grid, with about 2Kwh 
available per day, you learn what everything costs. :-)

> <quote>
> I'd heard that Linux is less power-efficient than Windows.  I used a
> Kill-A-Watt to test that assumption, and it seems to be wrong:
> In Windows XP SP3:
> When my laptop is at a blank desktop, no applications or unneeded
> services running, the laptop consumes 56 watts.  If I close the lid and
> wait for 5 minutes for the hard drive to go into power-saving mode, the
> laptop uses 50 watts.

Unfortunately, I've never actually had a Windows machine to test!

More information about the ubuntu-users mailing list