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AMD Fusion Linux Gallium3D Performance Has Improved A Lot

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  • AMD Fusion Linux Gallium3D Performance Has Improved A Lot

    Phoronix: AMD Fusion Linux Gallium3D Performance Has Improved A Lot

    The performance of the open-source AMD Radeon Linux graphics driver for AMD Fusion APUs has improved a lot, but the Gallium3D driver performance still isn't yet on par with the AMD Catalyst binary driver. In this article are a variety of tests from an AMD APU including with the Linux 3.11 dynamic power management support, Mesa Git, and when using the R600 SB shader optimization back-end.

    http://www.phoronix.com/vr.php?view=19007

  • #2
    I wish noveau drivers where that good...

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    • #3
      Nice, although I really would have liked to see a power consumption graph as well...

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      • #4
        Nice, although I really would have liked to see a power consumption graph as well...
        Open source DPM would be the same as Catalyst if previous tests are any indication. Without the DPM, power consumption would be allot higher.

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        • #5
          The last chart suggest something is seriously wrong in the gallium driver, if fixed could boost all other benchmarks.

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          • #6
            Question for Bridgeman:

            Question for Bridgeman:

            Kaveri APUs and later, will have a unified ram architecture. They will also include a GCN gpu core, and iirc GCN has hardware shader scheduling(i may be wrong on this though). I believe memory management and shader scheduling are those difficult tasks to optimise for opensource devs. Does it mean that opensource drivers will need less optimizations in order to have similar performance to Catalyst on newer APUs?

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            • #7
              Very clear colors on this one. Seems some of the color changes got through.

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              • #8
                I admit I was hoping and expecting to see better results, but it's still nice to see steadily improving performance with additional features. Still exciting to think about how one day AMD will have the best open source graphics solution. When you think about it, they're almost doing better than intel when you consider intel's GPUs are incredibly simple in comparison.

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                • #9
                  best?

                  Originally posted by schmidtbag View Post
                  I admit I was hoping and expecting to see better results, but it's still nice to see steadily improving performance with additional features. Still exciting to think about how one day AMD will have the best open source graphics solution. When you think about it, they're almost doing better than intel when you consider intel's GPUs are incredibly simple in comparison.

                  only if is the same level of fglrx, without stable dpm and "mesa 10" (opengl 3.3) itīs not possible

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                  • #10
                    Why is openarena 0.8.8 so much slower than 0.8.5 (even at a lower resolution)?

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                    • #11
                      Originally posted by monraaf View Post
                      Why is openarena 0.8.8 so much slower than 0.8.5 (even at a lower resolution)?
                      It's probably fair to reword the question as "why is openarena 0.8.5 so much faster than everything else ?". IIRC 0.8.5 doesn't use shaders while 0.8.8 does (as do all the other games).

                      The entry level GPUs use relatively more silicon for pushing screens around than for running shaders, which matches how they are typically used, but the downside is that the parts become shader-bound more quickly than larger GPUs (which use most of their extra silicon in the shader core).

                      I think the Bobcat GPU is comparable to a 5450, but with slower clocks and slower memory, so faster than an RS780/880 or RV610/620 but not much else. That still made it exceptionally fast for an integrated GPU at the time, but it's not exactly a gaming part (at least not for anything with complex shaders).
                      Last edited by bridgman; 08-05-2013, 07:15 PM.

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                      • #12
                        Originally posted by monraaf View Post
                        Why is openarena 0.8.8 so much slower than 0.8.5 (even at a lower resolution)?
                        It does many shader-intensive effects, like flares, bloom, etc.

                        If you turn all that eye-candy off, it should run about the same as 0.8.5.

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                        • #13
                          40% OT: Please, can anybody look into suspension/resume with E-series APUs and DPM? My E-450 with Linux 3.11 rc4 doesn't suspend / resume reliably, that with the latest firmware and the latest Fedora packages. I've crawled through my logs and I found nothing, so, please, help.

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                          • #14
                            Originally posted by Alejandro Nova View Post
                            40% OT: Please, can anybody look into suspension/resume with E-series APUs and DPM? My E-450 with Linux 3.11 rc4 doesn't suspend / resume reliably, that with the latest firmware and the latest Fedora packages. I've crawled through my logs and I found nothing, so, please, help.
                            resume/suspend fails how exactly? can you take a screen/photo of the wake up? motherboard? latest bios? dmidecode?

                            i mean too few information to help you, get some of the above and will be better to help you

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                            • #15
                              Originally posted by Alejandro Nova View Post
                              40% OT: Please, can anybody look into suspension/resume with E-series APUs and DPM? My E-450 with Linux 3.11 rc4 doesn't suspend / resume reliably, that with the latest firmware and the latest Fedora packages. I've crawled through my logs and I found nothing, so, please, help.
                              Please file a bug (https://bugs.freedesktop.org). Also, are you only seeing issues with dpm enabled or in general? There are some issues with UVD and suspend/resume that have patches pending what may fix the issues you are seeing. Please provide the details in the bug report.

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