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The May 2012 Open-Source Radeon Graphics Showdown

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  • #31
    Originally posted by droste View Post
    Problem:
    you want to enable (2D) color tiling -> you need a xorg.conf (or xorg.conf.d)

    Fact:
    you don't use something -> it's obsolete

    Solution:
    you don't use (2D) color tiling -> it's obsolete
    (2D) color tiling is obsolete -> you don't need a xorg.conf (or xorg.conf.d)

    problem solved
    LOL very funny... someone should write a nice GUI to turn on stuff like PCIe2.0 or color tiling.

    or even better a withe list to turn on the stuff automatically ..

    yes i know no one do have time for usability stuff-----

    Comment


    • #32
      Originally posted by Qaridarium View Post
      LOL very funny... someone should write a nice GUI to turn on stuff like PCIe2.0 or color tiling.

      or even better a withe list to turn on the stuff automatically ..

      yes i know no one do have time for usability stuff-----
      I thought we have "driconf" for years already.

      Comment


      • #33
        Originally posted by crazycheese View Post
        I thought we have "driconf" for years already.
        nice try i checked it and there is no option for color tilling or PCIe2.0

        now we get a GUI without any helpful (if you want to improve the performance) options

        Comment


        • #34
          Originally posted by Pontostroy View Post
          Only etqw-demo has problem, other games and test runs fine.

          I build livecd with lastes mesa-git, xf86-drivers-git, kernel-git every 14-20 days for over a year (lastes build includes mesa-git 20120518), I tweaked mesa,kernel and drivers for maximum performance and do some tests, and have never seen so lightsmark showed less than 100 FPS, how Michael get 63 FPS, I do not know.
          The-May-2012-Open-Source-Radeon-Graphics-Showdown radeon-tweaked does not show the the real data, certainly not for the HD 6770.
          Wasn't able to download your live cd, server wasn't very responsive. I did a test run with Ubuntu 12.4, xorg-edgers and I am getting the same results as Michael.
          http://openbenchmarking.org/result/1...AR-EDGERSLM817

          Would be interesting to figure out how you've got over 100fps

          Comment


          • #35
            Just captured a GL trace (vdrift) under ubuntu12.4/xorg-edgers and win7/catalyst12.4 and retraced with glretrace -p.

            It looks like the gl calls might have a "somewhat" lower overhead on linux. Buffer swapping and flushing(where all the exciting stuff happens I guess) is killing the mesa driver.
            Code:
            windows
            3960396 [0 usec] glEnableClientState(array = GL_VERTEX_ARRAY)
            3960397 [0 usec] glEnableClientState(array = GL_TEXTURE_COORD_ARRAY)
            3960398 [0.392849 usec] glTexCoordPointer(size = 2, type = GL_FLOAT, stride = 0, pointer = blob(224))
            3960399 [0 usec] glVertexPointer(size = 3, type = GL_FLOAT, stride = 0, pointer = blob(336))
            3960400 [0.785698 usec] glDrawElements(mode = GL_TRIANGLES, count = 42, type = GL_UNSIGNED_INT, indices = blob(168))
            3960401 [0.392849 usec] glDisableClientState(array = GL_TEXTURE_COORD_ARRAY)
            3960402 [0.392849 usec] glDisableClientState(array = GL_NORMAL_ARRAY)
            3960403 [0.392849 usec] glDisableClientState(array = GL_VERTEX_ARRAY)
            3960404 [15.714 usec] glActiveTexture(texture = GL_TEXTURE0)
            3960405 [1.5714 usec] glBindTexture(target = GL_TEXTURE_2D, texture = 12)
            3960406 [0 usec] glEnableClientState(array = GL_VERTEX_ARRAY)
            3960407 [0.392849 usec] glEnableClientState(array = GL_TEXTURE_COORD_ARRAY)
            3960408 [0.392849 usec] glTexCoordPointer(size = 2, type = GL_FLOAT, stride = 0, pointer = blob(32))
            3960409 [0 usec] glVertexPointer(size = 3, type = GL_FLOAT, stride = 0, pointer = blob(48))
            3960410 [1.96425 usec] glDrawElements(mode = GL_TRIANGLES, count = 6, type = GL_UNSIGNED_INT, indices = blob(24))
            
            3960634 [23.5709 usec] wglSwapBuffers(hdc = 0x7c010395) = true
            
            linux
            1505427 [0.112 usec] glEnableClientState(array = GL_VERTEX_ARRAY)
            1505428 [0.109 usec] glEnableClientState(array = GL_TEXTURE_COORD_ARRAY)
            1505429 [0.305 usec] glTexCoordPointer(size = 2, type = GL_FLOAT, stride = 0, pointer = blob(224))
            1505430 [0.206 usec] glVertexPointer(size = 3, type = GL_FLOAT, stride = 0, pointer = blob(336))
            1505431 [3.972 usec] glDrawElements(mode = GL_TRIANGLES, count = 42, type = GL_UNSIGNED_INT, indices = blob(168))
            1505432 [0.184 usec] glDisableClientState(array = GL_TEXTURE_COORD_ARRAY)
            1505433 [0.103 usec] glDisableClientState(array = GL_NORMAL_ARRAY)
            1505434 [0.122 usec] glDisableClientState(array = GL_VERTEX_ARRAY)
            1505435 [0.138 usec] glActiveTexture(texture = GL_TEXTURE0)
            1505436 [0.445 usec] glBindTexture(target = GL_TEXTURE_2D, texture = 12)
            1505437 [0.144 usec] glEnableClientState(array = GL_VERTEX_ARRAY)
            1505438 [0.133 usec] glEnableClientState(array = GL_TEXTURE_COORD_ARRAY)
            1505439 [0.287 usec] glTexCoordPointer(size = 2, type = GL_FLOAT, stride = 0, pointer = blob(32))
            1505440 [0.209 usec] glVertexPointer(size = 3, type = GL_FLOAT, stride = 0, pointer = blob(48))
            1505441 [6.085 usec] glDrawElements(mode = GL_TRIANGLES, count = 6, type = GL_UNSIGNED_INT, indices = blob(24))
            
            1505677 [432.663 usec] glXSwapBuffers(dpy = 0x22e08b0, drawable = 67108879)
            24 vs 433 usec that's almost a factor of 20 in this snippet...

            Another thing I've learned is that trying to profile from user side is completely pointless.

            Comment


            • #36
              Originally posted by Qaridarium View Post
              its obsolete because in my system there isn't a /etc/x11/xorg.conf at all and there is also no xorg.conf.d

              because its all "auto detected"

              what you really wana say is something like this: you have to open up a file if you want this option.
              Actually, it has been done the right way. Everything "Just Works (TM)" and there are no messy, ugly, incomprehensible configuration files that require tampering with. On the other hand, it "Just Works (TM)" fails, or if you want to get something more than the default, that good old-fashioned text file will still be respected if you create it. You can still fix it, if it's failing to start correctly. You can still enhance it if you want more out of your system than the default. Plus if you try, and mess it up, you can still fix your system in text mode, which is still available after the boot-to-GUI fails.

              The PCIe-2.0 model is enabled when you load the radeon module. For Gentoo that is set in /etc/conf.d/modules and for RedHat 6.2 in a file /etc/modprobe.d/. I don't have the exact parameter name handy, because that system is at home powered down.

              I tried to turn on the 2D color tiling by creating an /etc/X11/xorg.conf file with a simple DEVICE stanza. X11 told me that it was an invalid option, so I either got the name wrong, or my particular drive revision (xf86-video-ati-6.14.3) doesn't have it.

              If anyone knows the correct option name to use for 2D color tiling, I'd appreciate finding out what it is.

              Comment


              • #37
                Originally posted by phred14 View Post
                If anyone knows the correct option name to use for 2D color tiling, I'd appreciate finding out what it is.
                I've got it from the test logs: http://openbenchmarking.org/system/1...aked/xorg.conf
                Code:
                Section "Device"
                	Identifier  "Card0"
                	Driver      "radeon"
                	Option "SwapbuffersWait" "0"
                	Option "ColorTiling" "1"
                	Option "ColorTiling2D" "1"
                EndSection
                It has been only recognized with mesa 8.1.

                Comment


                • #38
                  I'll try and give this a shot, tonight. Well, first I'll check what Mesa I've got installed, and maybe I'll go ahead and install 8.1 - I believe I'm at 8.0.1. A quick look on an available Gentoo system, and I see that 8.1 isn't available yet in portage. I don't feel like moving a critical system to an overlay, so I think I'll file this one away and wait a little bit.

                  Thanks for the info, sorry I can't act on it, yet.

                  Comment


                  • #39
                    Originally posted by phred14 View Post
                    I'll try and give this a shot, tonight. Well, first I'll check what Mesa I've got installed, and maybe I'll go ahead and install 8.1 - I believe I'm at 8.0.1. A quick look on an available Gentoo system, and I see that 8.1 isn't available yet in portage. I don't feel like moving a critical system to an overlay, so I think I'll file this one away and wait a little bit.

                    Thanks for the info, sorry I can't act on it, yet.
                    I fully share your concerns, am running it from an extra "victim" partition. Btw I haven't noticed much difference yet with the few benchmarks I've tried.

                    Comment


                    • #40
                      Originally posted by log0 View Post
                      Wasn't able to download your live cd, server wasn't very responsive. I did a test run with Ubuntu 12.4, xorg-edgers and I am getting the same results as Michael.
                      http://openbenchmarking.org/result/1...AR-EDGERSLM817

                      Would be interesting to figure out how you've got over 100fps
                      Something is wrong with ubuntu or Unity.

                      I tested with worst settings and got 63 fps.
                      pcie_gen2=0,vblank_mode=1,swapbuffers=on,colortill ing=off,kwin effects=on
                      http://openbenchmarking.org/result/1...BY-GOG09979773

                      Enabling all optimization i got ~130fps without any magic and patches.

                      Comment


                      • #41
                        Originally posted by Pontostroy View Post
                        Something is wrong with ubuntu or Unity.

                        I tested with worst settings and got 63 fps.
                        pcie_gen2=0,vblank_mode=1,swapbuffers=on,colortill ing=off,kwin effects=on
                        http://openbenchmarking.org/result/1...BY-GOG09979773

                        Enabling all optimization i got ~130fps without any magic and patches.
                        I suspect it is the radeon.pcie_gen2=1 setting. The problem is with pcie_gen2 enabled I won't get lightsmark to run. The setting seems to be still not stable. But there is a minimal (2-3 fps) increase with warsow.

                        Comment


                        • #42
                          I've got lightsmark running with pcie_gen2, had one of the dependencies messed up. I still won't get it over 66fps...

                          Although with vblank_mode=0 I am getting 160% performance in warsaw! http://openbenchmarking.org/result/1...AR-MERGE234509

                          Also running recent vdrift version with -gl2 option at 1920x1080 and vblank_mode=0 will almost double the frame rate from 17fps towards 30fps. That is 50-60% performance compared to windows which is quite impressive.

                          Comment


                          • #43
                            That is 50-60% performance compared to windows which is quite impressive.
                            That depends on whether your Windows number teared too. If you get 60% tearing compared to Windows tearfree, it's not so great.

                            Comment


                            • #44
                              Originally posted by curaga View Post
                              That depends on whether your Windows number teared too. If you get 60% tearing compared to Windows tearfree, it's not so great.
                              I've noticed no tearing(racing game). But I've noticed the difference between almost unplayable 17 and fluid 30fps...

                              Comment


                              • #45
                                Btw does anyone know why tear-free display is so expensive (on linux) reducing the fps by a factor of two?

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