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AMD Radeon GPUs Run Great With Linux 3.11 Kernel, Mesa 9.3-devel

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  • AMD Radeon GPUs Run Great With Linux 3.11 Kernel, Mesa 9.3-devel

    Phoronix: AMD Radeon GPUs Run Great With Linux 3.11 Kernel, Mesa 9.3-devel

    While the Linux 3.11 kernel hasn't even been officially released yet, on Phoronix we have already published a number of Radeon DPM benchmarks, the new dynamic power management code coming to the open-source driver. Early Phoronix tests of Radeon DPM have yielded performance improvements and great improvements for power/thermal use. In this article are new Linux 3.11 + Mesa Git benchmarks from a variety of AMD/ATI Radeon graphics cards.

    http://www.phoronix.com/vr.php?view=19022

  • agd5f
    replied
    Originally posted by Espionage724 View Post
    Do UVD clocks take priority over high-performance clocks?

    For example, it's a pretty known issue that on Windows, if you play a game (high-performance clocks), and open up Flash Player content (Adobe), it will drop both the core and memory clocks to UVD media clocks, leading to lower-performance of the game...
    The UVD clocks are separate from the engine and memory clocks, however, UVD clocks are part of the the power state. There are specific power states for UVD that are designed based on playback requirements and board design. The UVD power state details will vary from board to board. The engine and memory clocks in the UVD power state need to be high enough to maintain apprioriate performance for video playback and support multiple displays, but low enough to handle board specific cooling and power budgets during UVD playback. The UVD state low performance levels are not always as low as the performance levels in the other power states and the UVD state high performance levels may not be as high as the high performance levels in the performance states, but it really depends on the board.
    Last edited by agd5f; 09-11-2013, 04:41 PM.

    Leave a comment:


  • AnonymousCoward
    replied
    Originally posted by Espionage724 View Post
    Do UVD clocks take priority over high-performance clocks?

    For example, it's a pretty known issue that on Windows, if you play a game (high-performance clocks), and open up Flash Player content (Adobe), it will drop both the core and memory clocks to UVD media clocks
    Yes. I see the same behavior on Linux.

    Leave a comment:


  • Espionage724
    replied
    Do UVD clocks take priority over high-performance clocks?

    For example, it's a pretty known issue that on Windows, if you play a game (high-performance clocks), and open up Flash Player content (Adobe), it will drop both the core and memory clocks to UVD media clocks, leading to lower-performance of the game, and possibly causing system-wide instability on multi-monitor setups.

    Leave a comment:


  • AnonymousCoward
    replied
    Originally posted by gradinaruvasile View Post
    Do you have "accelerated video rendering, hardware video decoding" if you look at "stats for nerds" right click option?
    It says: "accelerated video rendering, accelerated video decoding"

    Also when I start playback of a video on youtube I get a syslog entry:

    Code:
    switching from power state:
     ui class: performance
     internal class: none
     ...
    
    switching to power state:
     ui class: none
     internal class: uvd
     ...

    Leave a comment:


  • gradinaruvasile
    replied
    Originally posted by AnonymousCoward View Post
    Flash 11.2.202.297 / Firefox 23 / youtube
    Do you have "accelerated video rendering, hardware video decoding" if you look at "stats for nerds" right click option?

    Leave a comment:


  • Bushido_root
    replied
    Originally posted by gradinaruvasile View Post
    You cant just uninstall Mesa, it will take many necessary GUI (x server) components it. On Ubuntu, you either make install and overwrite the old Mesa or maybe use some PPA.
    If you did the overwrite thing, you will have to reinstall the Ubuntu packages if you want them back - dont make uninstall, you mught break the x server.

    Note - if you want to use the new dpm/uvd stuff you will need libdrm (2.4.46 or something), xserver-xorg-video-radeon(7.2 if im not mistaken) too at a newer version.

    PS I install the git version and i overwrite the default mesa on Debian. I never had any problems doing it.
    Alright, thanks for the info. (btw I have libdrm 2.4.43, DPM works just fine)

    Leave a comment:


  • gradinaruvasile
    replied
    Originally posted by Bushido_root View Post
    Currently running kernel DRM-Next 3.11. I am thinking about installing Mesa 9.2 from here and following these instructions myself:

    I have a some questions, I'm on ubuntu 12.10 and to do this do I need to uninstall my current Mesa version or just install the one from git; and what if I want to uninstall, how would I go about removing the git version and installing ubuntu's official version? Do I simply run make uninstall in the extracted zip folder?
    You cant just uninstall Mesa, it will take many necessary GUI (x server) components it. On Ubuntu, you either make install and overwrite the old Mesa or maybe use some PPA.
    If you did the overwrite thing, you will have to reinstall the Ubuntu packages if you want them back - dont make uninstall, you mught break the x server.

    Note - if you want to use the new dpm/uvd stuff you will need libdrm (2.4.46 or something), xserver-xorg-video-radeon(7.2 if im not mistaken) too at a newer version.

    PS I install the git version and i overwrite the default mesa on Debian. I never had any problems doing it.

    Leave a comment:


  • Bushido_root
    replied
    Currently running kernel DRM-Next 3.11. I am thinking about installing Mesa 9.2 from here and following these instructions myself:

    I have a some questions, I'm on ubuntu 12.10 and to do this do I need to uninstall my current Mesa version or just install the one from git; and what if I want to uninstall, how would I go about removing the git version and installing ubuntu's official version? Do I simply run make uninstall in the extracted zip folder?

    Leave a comment:


  • AnonymousCoward
    replied
    Flash 11.2.202.297 / Firefox 23 / youtube

    Leave a comment:

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