Kernel regression in power consumption

[MonolithImmortal]

Ubuntu 11.10 Power consumption up ~50% according to Phoronix.
http://www.phoronix.com/scan.php?pag...item&px=OTg5Mg

Read. Comprehend. Discus.

[el_koraco]

What's to discuss? This has been on and off since .34, .35 or something, with variations to the theme. It's probably gonna get worse before it gets better.

[KiwiNZ]

What's to discuss? This has been on and off since .34, .35 or something, with variations to the theme. It's probably gonna get worse before it gets better.

Maybe not for you, but others especially heavy Laptop users will be interested.

[el_koraco]

Maybe not for you, but others especially heavy Laptop users will be interested.

I do have a laptop. The news is interesting, there's just not too much to discuss. Unless you count peepz saying that Canonical should put everything on hold until it settles stuff with the drivers (lol) as a discussion.

[MonolithImmortal]

Discussion point: Carry your power cord with you everywhere. Laptop users with newer Intel cpu's can count on getting maybe 3 hour battery life on a good day.

[KiwiNZ]

With the expanding sales of Laptops globally power consumption is an important factor for a large number of users.

Power consumption up by 50% + is an important factor in OS selection and may well be a deal breaker.

[MonolithImmortal]

With the expanding sales of Laptops globally power consumption is an important factor for a large number of users.

Power consumption up by 50% + is an important factor in OS selection and may well be a deal breaker.

^ This.

[el_koraco]

Discussion point: Carry your power cord with you everywhere. Laptop users with newer Intel cpu's can count on getting maybe 3 hour battery life on a good day.

Do you think somebody will contradict this stuff or what? I mean, none of this comes a surprise, given that the kernel development has never really focused on power consumption. The only efforts have been made by the Zen/Liquorix kernel team and fewt with Jupiter, way off the main line. fewt especially has shown that you can do wonders with some lines of code, but it will probably take another six months, a year, maybe even too, until the main line kernel starts dealing with this. You don't need battery life on servers, do you.

[MonolithImmortal]

No I don't think someone will contradict that, but it may be news to quite a few people here. Anyway, it's relevant to Ubuntu, and just about everyone here for that matter.

Speaking of Fewt and Jupiter, is Jupiter even available for Ubuntu?

[KiwiNZ]

Do you think somebody will contradict this stuff or what? I mean, none of this comes a surprise, given that the kernel development has never really focused on power consumption. The only efforts have been made by the Zen/Liquorix kernel team and fewt with Jupiter, way off the main line. fewt especially has shown that you can do wonders with some lines of code, but it will probably take another six months, a year, maybe even too, until the main line kernel starts dealing with this. You don't need battery life on servers, do you.

With Unity, it is arguable that Canonical see the future for it's "desktop" Distribution as being largely up taken by the mobile user. Therefore it is also arguable that Canonical should put some effort into resolving power consumption issues.