This is in jest, BTW: we could go on forever :rolleyes: and list every possible software package:
Ubuntu is a GNU/LibreOffice/GNOME/KDE/LXDE/FLTK/FVWM/Unity/Mono/OpenJDK/Firefox/PulseAudio/.................../Linux distribution. :rolleyes: :rolleyes:
Good! Still on 2.6.37 for power consumption (/fan/heat) reasons. So it's not just me.
I've been using 2.6.38 for a while now. On my desktop which is running maverick, and and also on my laptop which is running natty so Icould test out unity. I have stuck with 2.6.38 because I have noticed decent latency improvements. While I agree as far a throughput is concerned things don't seem much different, could the various factors improving latency be causing the increase in power usage? Possibly more acpi wakeup events? I have noticed kworker process threads popping up in my conky top 5 cpu usage threads quite frequently.
I think power consumption is not obtained from hardware but calculated by ACPI. It's rather simple mathematics, but it could be the algorithm has been changed in between.
If you could try a full battery emptying between, let's say 2.6.37 and 2.6.38 we could be sure about the reported consumption.
Yeah, there have been a few lm-sensors updates recently (3.2.0 in October last year, and 3.3.0 in march of this year). Has one been pulled in recently? That could be a possible explanation. (in addition to whatever driver changes may have occurred at about the same time)
+1 to idea of more wakeups on newer Ubuntu, that was my first thought too. Haven't tried Natty on my old AMD laptop yet though.
Ubuntu provides specific repositories of nonfree software, and Canonical expressly promotes and recommends nonfree software under the Ubuntu name in some of their distribution channels. Ubuntu offers the option to install only free packages, which means it also offers the option to install nonfree packages too. In addition, the version of Linux included in Ubuntu contains firmware blobs.
Ubuntu's trademark policy prohibits commercial redistribution of exact copies of Ubuntu, denying an important freedom.
Apple does the same, they control the hardware and the software but most of the time they do a tons of quirk inside the operating system to improve how it works, i have seen some of the osx kernel and it's populated with special path for each specific hardware, it's a mess.
Linux kernel on the other end try to do cleanly in a generic way, and on that front i am sure linux is a good contender. Of course in real world people have crap hardware with crap acpi and crappier bios, but there is just not enough resource to go after all the hardware out there and fine tune each of them.