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Intel Sandy Bridge Performance Goes Up Again

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  • phoronix
    started a topic Intel Sandy Bridge Performance Goes Up Again

    Intel Sandy Bridge Performance Goes Up Again

    Phoronix: Intel Sandy Bridge Performance Goes Up Again

    At the beginning of the month I reported on a small patch to Mesa that resulted in a huge performance improvement for Intel Sandy Bridge graphics, but Intel's OSTC developers have bumped up the performance of the latest-generation graphics processors even more. With the LLC caching patch-set, which should be committed to the Linux 2.6.40 kernel (not the current 2.6.39 cycle), there are measurable OpenGL performance improvements.

    http://www.phoronix.com/vr.php?view=15863

  • imamdxl
    replied
    Intel Linux

    If you get any progress, let me know.[/QUOTE]

    Hi, thanks for the info.

    I am not receiving anything like that on dmesg. I am using git too compiled Mesa and Xserver from xorg edgers ppa.

    You should check 'use video devices' on Users and Groups settings.

    Cheers

    Leave a comment:


  • isaque
    replied
    Originally posted by imamdxl View Post
    Hi, I am using linux 2.6.38 from kernel ppa on Ubuntu 10.10. will I get performance boost with MTRR enabled. my graphics is Intel GMA 4500. if I will how to enable MTRR.

    Thank you
    I can't tell you if you will benefit from it. I was receiving this message om my dmesg:

    Code:
    [drm] MTRR allocation failed.  Graphics performance may suffer.
    So, if you are receiving that message you might benefit from enabling MTRR_SANITIZER.

    I enabled it on my system recompiling the kernel and changing this option on .config file under /usr/src/linux:

    Code:
    CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=1
    I'm also using mesa from git which boosts my system. You should try it too.

    If you get any progress, let me know.

    Leave a comment:


  • imamdxl
    replied
    kernel MTRR

    Originally posted by isaque View Post
    Found my problem: MTRR.

    Compiled kernel with CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=1 and voil?, got 217fps.
    Hi, I am using linux 2.6.38 from kernel ppa on Ubuntu 10.10. will I get performance boost with MTRR enabled. my graphics is Intel GMA 4500. if I will how to enable MTRR.

    Thank you

    Leave a comment:


  • isaque
    replied
    Originally posted by isaque View Post
    Ok, something in my system should be wrong.

    I have seen reports from phoronix on i3-2100 with 2.6.39 openarena 800x600 tests at 180fps.

    My system can only run 110fps with mesa from git.

    What am I doing wrong?
    Found my problem: MTRR.

    Compiled kernel with CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=1 and voil?, got 217fps.

    Leave a comment:


  • isaque
    replied
    Something is very wrong

    Ok, something in my system should be wrong.

    I have seen reports from phoronix on i3-2100 with 2.6.39 openarena 800x600 tests at 180fps.

    My system can only run 110fps with mesa from git.

    What am I doing wrong?

    Leave a comment:


  • bwat47
    replied
    I was actually wrong that my laptop was a sandy bridge, mine is one gen before that (Arrandale) The processor is an i5 460m

    And support has been excellent. My old card was a 512mb hd2600. Felt like garbage in linux compared to this. I also have vaapi working perfectly with VLC player without having to do any dicking around, I haven't had a problem with the graphics yet.

    I'm running gnome 3 on it and its super responsive and great for web browsing/video. Scrolling was total garbage on the ati card with any compositing enabled, with the intel card I can use smooth scrolling in firefox/opera/chrome with no issues, just as smooth as windows.

    Leave a comment:


  • Panix
    replied
    What was your dedicated ati card? Can you be more specific about the performance?

    I know there was a joke somewhere but I am seriously wondering about Intel's graphics support w/ Sandybridge especially when it concerns laptops.

    The integrated Intel gpu in say i3-2410? How is the support?

    Leave a comment:


  • bwat47
    replied
    I just got a new sandy bridge laptop, can't wait for this kernel The performance of these integrated graphics is already seem faster than my dedicated ati card was in linux.

    Leave a comment:


  • DavidC
    replied
    I'm going to speculate the reason Linux driver performance is now so close to Windows is because Windows driver doesn't expose full potential. The latest graphics driver for Windows, 2361 claims up to 43% benefit in the games tested: http://downloadmirror.intel.com/2003...se%20notes.pdf

    Someone also benched it and verified the results, although the gains are lower, its still there: http://communities.intel.com/message/124739

    Here's what the release note claims: "Hardware Transform and Lighting support in OpenGL added. Increases performance in certain
    OpenGL applications."

    That sounds similar to the Linux patch for enabling 60 VS threads, doesn't it?

    Leave a comment:

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