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Intel Sandy Bridge Speeds Up On Linux 3.1 Kernel

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  • Intel Sandy Bridge Speeds Up On Linux 3.1 Kernel

    Phoronix: Intel Sandy Bridge Speeds Up On Linux 3.1 Kernel

    Last week the DRM pull went in for the Linux 3.1 kernel. For the Intel DRM graphics driver in the Linux kernel there is frame-buffer compression clean-ups, high color support, ring frequency scaling, shared LLC support, and hang-check module disabling. Compared to the Linux 3.0 kernel, the driver improvements significantly boost the open-source graphics performance for Intel Sandy Bridge hardware.

    http://www.phoronix.com/vr.php?view=16278

  • #2
    As an owner of a Sandy Bridge laptop this is great news for me.
    Thanks for the benchmark.

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    • #3
      As someone who is not a Sandy Bridge owner (well, not one that's actually using its integrated GPU, anyway), I have to say: damn, them's some good improvements! Rock on, Intel devs!

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      • #4
        Really impressive!

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        • #5
          Hip Hip hurray!

          This only prove that Linux Intel strategy is on pair with Win/Mac !

          However I wonder how Intel will behave when mess will pass OpenGL 3.1 mark. Will intell devs try to backport modern OpenGL to SNB?

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          • #6
            Originally posted by przemoli View Post
            This only prove that Linux Intel strategy is on pair with Win/Mac !

            However I wonder how Intel will behave when mess will pass OpenGL 3.1 mark. Will intell devs try to backport modern OpenGL to SNB?
            I'm sure they'll attempt to support whatever the hardware is capable of. SNB doesn't implement GL 4 features, so no way it gets that. From what i can tell, the hardware is supposed to implement the full DX10 feature set, which I believe means they should be able to finish through OpenGL 3.4. However, I'm not 100% sure about that.

            Ivy Bridge is supposed to support more features, though, and it will be using the same Mesa driver so added support there will trickle back down to Sandy Bridge when the hardware supports it.
            Last edited by smitty3268; 08-03-2011, 04:53 AM.

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            • #7
              AMD, we have a problem!
              Soon in Linux world, your APU will mean nothing.

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              • #8
                Originally posted by przemoli View Post
                This only prove that Linux Intel strategy is on pair with Win/Mac !

                However I wonder how Intel will behave when mess will pass OpenGL 3.1 mark. Will intell devs try to backport modern OpenGL to SNB?
                I would not be surprised if this puts Linux graphics performance well ahead of Windows graphics performance on Sandy Bridge.

                Originally posted by smitty3268 View Post
                I'm sure they'll attempt to support whatever the hardware is capable of. SNB doesn't implement GL 4 features, so no way it gets that. From what i can tell, the hardware is supposed to implement the full DX10 feature set, which I believe means they should be able to finish through OpenGL 3.4. However, I'm not 100% sure about that.

                Ivy Bridge is supposed to support more features, though, and it will be using the same Mesa driver so added support there will trickle back down to Sandy Bridge when the hardware supports it.
                By the time Mesa supports OpenGL 3.4, the hardware will probably be too old for Intel to still care. I don't expect to see them implement support.

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                • #9
                  I am happy

                  I had been struggling to have good graphics in Linux. Now with 3.0 kernel it has improved greatly(I can finally play supertuxkart, alienarena) on 11.04. I installed 11.10 beta (buggy) and quickly reinstalled 11.04. I thought I could not get good graphics support until 11.10 but, Ubuntu added update for xorg 1.7.6. I am waiting for Ubuntu to add vanilla implementation of 3.1. I am so happy, finally my sandy bridge is supported in Ubuntu.

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                  • #10
                    Originally posted by Shining Arcanine View Post
                    By the time Mesa supports OpenGL 3.4, the hardware will probably be too old for Intel to still care. I don't expect to see them implement support.
                    When Mesa finally supports OpenGL 3.4, Intel will want to have support for their current hardware. And that means that 95% of the work to get it on SNB will already be done, so I'd expect them to do it. The current GL 2 extensions that support is added for aren't limited to just SNB, after all, they add support to the i965 driver and all the hardware running that driver can take advantage.

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                    • #11
                      dayum thats a nice performance boost. the current SB video drivers were already good and comparable or better than the windows drivers but now they probably outperform windows in all tests at this point.

                      i'm not an owner of SB but i'm glad to hear the awesome work being done.

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                      • #12
                        1) There is no OpenGL 3.4. Newest is OpenGL 3.3 for 3.x line and OpenGL 4.1 for OpenGL 4.x line.
                        2) SNB support DX10.1, it should support OpenGL 3.2 at least (as AMD/Nvidia gpus that support one support the other)
                        3) IvyBridge will support DX11, and OpenGL 3.1! This is something wrong. Also some Intel roadmaps indicate that OpenGL will be updated just by one incrementation at a time (so next will have 3.1, than 3.2 ...)

                        So I wander if it is just Intel policy to not to have OpenGL drivers under MacOSX/Win, or is it some real hwd limitation. And how devs sponsored by Intel will behave when mesa will aproach OpenGL 3.x (will they add more OpenGL, even though Win/Mac version will not support newer OpenGL?)
                        Last edited by przemoli; 08-04-2011, 10:15 AM.

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                        • #13
                          Originally posted by przemoli View Post
                          1) There is no OpenGL 3.4. Newest is OpenGL 3.3 for 3.x line and OpenGL 4.1 for OpenGL 4.x line.
                          Doh. I always make that mistake, thinking there are 4 GL 3 versions, but it's 3.0 - 3.3, not 3.4.
                          2) SNB support DX10.1, it should support OpenGL 3.2 at least (as AMD/Nvidia gpus that support one support the other)
                          3) IvyBridge will support DX11, and OpenGL 3.1! This is something wrong. Also some Intel roadmaps indicate that OpenGL will be updated just by one incrementation at a time (so next will have 3.1, than 3.2 ...)
                          It's not a hardware limitation, it's just the fact that Intel considers OpenGL support on Windows to be an afterthought. I'm sure the 3.1 support mentioned is just because that's what their current drivers support.

                          So I wander if it is just Intel policy to not to have OpenGL drivers under MacOSX/Win, or is it some real hwd limitation. And how devs sponsored by Intel will behave when mesa will aproach OpenGL 3.x (will they add more OpenGL, even though Win/Mac version will not support newer OpenGL?)
                          The Intel Windows drivers have always been "challenged". Direct3D support was sketchy at best, and OpenGL support was almost non-existent. They've made a big push in the last year or so to try and get the drivers to a much higher quality, and i think some of that effort is starting to bleed over into OpenGL, but they've still got a long ways to go. I think you'd be hard pressed to find any Intel developers targeting OpenGL on Windows - they'll all be using Direct3D and either ignoring Mac/Linux or providing another option to use OpenGL on those platforms.

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                          • #14
                            Originally posted by przemoli View Post
                            So I wander if it is just Intel policy to not to have OpenGL drivers under MacOSX/Win, or is it some real hwd limitation. And how devs sponsored by Intel will behave when mesa will aproach OpenGL 3.x (will they add more OpenGL, even though Win/Mac version will not support newer OpenGL?)
                            Intel linux drivers have pretty much always had better OpenGL support than the windows one. Example: 3150 does GL 2 on linux, 1.5 on windows.

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                            • #15
                              Anyone know any ubuntu ppa for latest intel driver with the latest sandy bridge support, kernel 3.1, and the a recent mesa?

                              My ubuntu natty is getting fairly outdated, but I've grabbed kernel 3.0 and the intel driver from http://ppa.launchpad.net/glasen/intel-driver/ubuntu which helps a LOT. I wouldn't mind trying kernel 3.1 along with a fairly recent mesa deb either though.

                              (note, yes I know I can compile this by hand. And I have more than enough experience to do so, however, I don't have enough time to play around with it. So a ppa/deb is a lot cleaner, and a lot faster to try out).

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