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A Proper Solution To The Linux ASPM Problem

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  • phoronix
    started a topic A Proper Solution To The Linux ASPM Problem

    A Proper Solution To The Linux ASPM Problem

    Phoronix: A Proper Solution To The Linux ASPM Problem

    At long last, it looks like there is an adequate solution to the Active State Power Management (ASPM) problem in the Linux kernel , a.k.a. the well-known and wide-spread power regression in the Linux 2.6.38 kernel, which has been causing many laptops to go through significantly more power than they should. This is not another workaround, but rather a behavioral change in the kernel to better decide when the PCI Express ASPM support should be toggled.

    http://www.phoronix.com/vr.php?view=16682

  • Bucic
    replied
    I'm not a Linux savvy but why do you guys talk about compiling kernel etc. when the debs are available? See here https://wiki.ubuntu.com/Kernel/PowerManagement With this it requires user to issue literally two terminal commands to get his new kernel ready. I got
    Code:
    ~$ uname -a
    ... 3.0.0-13-generic #22+mjgaspmfix ...
    so I think I've succeeded.

    That it didn't give me any improvements regarding power issues is a whole another story http://ubuntuforums.org/showthread.p...9#post11460009

    I'd appreciate if anyone could comment on that last bit.

    Leave a comment:


  • AlbertP
    replied
    It currently looks like the patch will be in the 3.3 kernel. It might be backported to older kernels but the kernel developers still want to test it.

    Leave a comment:


  • quarara
    replied
    Originally posted by AlbertP View Post
    It's perhaps easier to wait for a kernel which has this patch included.
    Here's a page on installing newer Ubuntu kernels: http://forums.linuxmint.com/viewtopic.php?f=42&t=40185
    Thanks, I hope it will come soon, as I hope Ubuntu team will include the patch in its kernel.

    Leave a comment:


  • AlbertP
    replied
    Please open a new topic or look for a topic about kworker on this forum, or another forum. This topic is about ASPM.

    Leave a comment:


  • cyring
    replied
    Thanks
    Any links/ideas howto reduce kworker ?

    Leave a comment:


  • cyring
    replied
    Originally posted by AlbertP View Post
    No. This is a very different issue.
    Thanks for the quick answer !

    Did you find any links / ideas that show howto reduce ?

    Regards

    Leave a comment:


  • AlbertP
    replied
    No. This is a very different issue.

    Leave a comment:


  • cyring
    replied
    kworker

    Is this going to resolv the kworker thread consumming CPU usage (when linux idles) ?

    Leave a comment:


  • AlbertP
    replied
    It's perhaps easier to wait for a kernel which has this patch included.
    Here's a page on installing newer Ubuntu kernels: http://forums.linuxmint.com/viewtopic.php?f=42&t=40185

    Leave a comment:

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