Why is Gutsy so hungry for power?

[John Leonard]

I have read a number of articles in which the power
consumption of various OSs running on a standard PC or
laptop are compared (eg
http://www.phoronix.com/scan.php?pag...item=880&num=2
). Sad to say Ubuntu generally does poorly in
comparison with XP as well as other linux desktops. I
have been unable to find out why it is so hungry for
power, but the sooner it is sorted, or tools provided
to allow the average user to tweak their system to
reduce the wattage the better.

As well as issues with laptop battery life
(particularly with Gutsy see
http://ubuntuforums.org/showthread.php?t=600810 ), the
prevailing interest in green computing as well as the
general open source ethos means Ubuntu is really
missing a trick if this is not improved. It will not
be too long before the wolves are at the door.

Does anyone know why Gutsy uses more power than Feisty
and how consumption can be reduced?


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