Verily I say unto thee, that The Ghost In The Machine spake thusly:
> On a personal note...turns out my Gnome battery indicator was not
> quite as optimistic as I thought. Sitting largely idle, my laptop
> lasted for more than 2 hours purely on battery power. However, it
> might have lasted even longer under Windows, since the latter
> apparently knows how to throttle down the processor when idle.
> Reviews suggests close to 3 hours. I'll have to test this under XP
> at some point.
Linux has supported CPU Frequency Scaling since 2.6, with backports to 2.4:
http://www.kernel.org/pub/linux/utils/kernel/cpufreq/cpufreq.html
Set to the "On demand" governor, it will keep the CPU at the minimum
frequency whilst idle, increase it under load, and decrease it when the
CPU temperature exceeds a configurable limit.
Gnome has a CPU Frequency Scaling Monitor panel applet that compliments
this feature, enabling the user selection of different governors or
specific frequencies.
The processor must actually support this feature for it to work, obviously.
> The only problem with Linux at this point is getting the word out.
> :-)
And ensuring that the word is not FUD.
--
K.
http://slated.org
.----
| "[Microsoft] are willing to lose money for years and years just to
| make sure that you don't make any money, either." - Bob Cringely.
| - http://blog.businessofsoftware.org/2007/07/cringely-the-un.html
`----
Fedora release 8 (Werewolf) on sky, running kernel 2.6.23.8-63.fc8
11:27:36 up 29 days, 9:03, 3 users, load average: 0.17, 0.10, 0.09
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