Page 1 of 2 12 LastLast
Results 1 to 10 of 20

Thread: The Nasty Battery Power Usage On Ubuntu 11.10

  1. #1
    Join Date
    Jan 2007
    Posts
    13,472

    Default The Nasty Battery Power Usage On Ubuntu 11.10

    Phoronix: The Nasty Battery Power Usage On Ubuntu 11.10

    This morning I shared some initial battery power consumption results for Ubuntu 11.10 from three different mobile devices. For all three of them, the power consumption on Ubuntu 11.10 was even higher than Ubuntu 11.04, which was already in a power hungry state. Before calling it a week to go handle XDC2011 matters, I ran some tests from a standard Intel Atom N270 netbook. Sure enough, Ubuntu 11.10 is doing a heck of a job at burning through power...

    http://www.phoronix.com/vr.php?view=OTg5NA

  2. #2

    Default

    Idle, DPMS Off, Video Playback
    Idle and Video Playback are mutually exclusive. The system cannot be idle and playing back video at the same time.

  3. #3
    Join Date
    Aug 2011
    Posts
    1

    Angry Don't you just looooove the Ubuntu bashing on Phoronix?

    For the past odd 1.5 years I've yet to read a thoroughly positive toned article on Ubuntu on Phoronix.

    It is not just Ubuntu that is going to suck more power, it is Linux. The changes are on the kernel side.

    Geezzzzz....

    Compile in the new kernel on an Arch Linux / <your favourite distro here> and test the power again.

    Ubuntu bad, Ubuntu slower booting, Ubuntu Unity fail, Ubuntu unstable, Ubuntu own test suite (where is ours!), Ubuntu <negative rant here>

    I, for one, love Unity. And its keyboard shortcuts. KDE is a good second but the <meta>+1 to switch between apps is brilliant. I am really productive on it, and apart from the terrible power management I'm actually looking forward to 11.10.

  4. #4
    Join Date
    Oct 2008
    Posts
    2,913

    Default

    Quote Originally Posted by mvniekerk View Post
    For the past odd 1.5 years I've yet to read a thoroughly positive toned article on Ubuntu on Phoronix.

    It is not just Ubuntu that is going to suck more power, it is Linux. The changes are on the kernel side.

    Geezzzzz....

    Compile in the new kernel on an Arch Linux / <your favourite distro here> and test the power again.

    Ubuntu bad, Ubuntu slower booting, Ubuntu Unity fail, Ubuntu unstable, Ubuntu own test suite (where is ours!), Ubuntu <negative rant here>

    I, for one, love Unity. And its keyboard shortcuts. KDE is a good second but the <meta>+1 to switch between apps is brilliant. I am really productive on it, and apart from the terrible power management I'm actually looking forward to 11.10.
    Phoronix has long been bashed because it doesn't care about anything other than Ubuntu. It completely ignores other distros and only focuses on Ubuntu. I don't think it really has anything to do with whether the stories end up being positive or negative.

  5. #5
    Join Date
    Dec 2007
    Posts
    677

    Default

    I'm fairly certain Fedora has started to be getting more attention, as the distro has been improving to be more common-user friendly.

  6. #6
    Join Date
    Aug 2011
    Location
    somewhere
    Posts
    20

    Default

    Quote Originally Posted by Vadi View Post
    I'm fairly certain Fedora has started to be getting more attention, as the distro has been improving to be more common-user friendly.
    It might be getting more usable but the default gnome-shell theme is hideous :P unity looks really great IMO, 11.04 was not ready for me yet but the little while I've been testing 11.10 I was satisfied but since I'm going to college soon I'll have to wait until 11.10 hits stable release so that I switch to it from fedora.

  7. #7
    Join Date
    Jan 2010
    Location
    Somewhere in Kansas.
    Posts
    210

    Default Atom power bugs

    In this case, the power consumption issue is mostly in the kernel. I have an atom processor and I've tried upgrading the kernel to newer versions but....
    Everything past .37 consumes a significantly more power. That 20% there is the difference between the fan running quietly and about 2 hours off the battery life.

  8. #8
    Join Date
    Apr 2011
    Posts
    147

    Default more tests?

    It would be nice to have the same tests under optimal conditions, i mean after running power-top git and enabling all of the suggestion it provides, adding pcie_aspm=force, i915.i915_enable_rc6=1 to the kernel boot options.
    Personally, after doing that, i have 5,9 -> 6,1W in idle on a netbook with similar spec (asus 1005ha) with kernel 3.0.
    Didn't test it under load.

  9. #9
    Join Date
    Sep 2011
    Location
    Prague
    Posts
    4

    Default

    I bet phoronix has nothing personal to ubuntu, it's just most widely used linux distro. Who needs comparison of netbsd with slakware?

    On my laptop btw I cant say I see major power regression, on lucid/maverick with kernel 2.6.34 (custom build) I had
    Present rate : 1550 mA
    now I have
    Present rate : 1377 mA
    which is quite compfortable. Of course I have some customisation:
    Code:
    [    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-3.0.0-10-generic root=UUID=5752d8a8-3b9b-48ce-be8e-93a7ffd66994 ro i8042.nomux=1 pcie_aspm=force
    
    options i915 i915_enable_fbc=1 lvds_downclock=1 i915_enable_rc6=1
    p.s.
    Code:
    # dmidecode -s system-product-name
    Aspire 4820TG

  10. #10
    Join Date
    Feb 2007
    Posts
    87

    Default

    Quote Originally Posted by mvniekerk View Post
    For the past odd 1.5 years I've yet to read a thoroughly positive toned article on Ubuntu on Phoronix.

    It is not just Ubuntu that is going to suck more power, it is Linux. The changes are on the kernel side.

    Geezzzzz....

    Compile in the new kernel on an Arch Linux / <your favourite distro here> and test the power again.

    Ubuntu bad, Ubuntu slower booting, Ubuntu Unity fail, Ubuntu unstable, Ubuntu own test suite (where is ours!), Ubuntu <negative rant here>

    I, for one, love Unity. And its keyboard shortcuts. KDE is a good second but the <meta>+1 to switch between apps is brilliant. I am really productive on it, and apart from the terrible power management I'm actually looking forward to 11.10.

    Of course it is distro related. Aside from kernel and power profile settings (which is again a distro decision), the way the user-land behaves (and choices of packages) has a major impact in energy consumptions as well.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •