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The Cost Of Running Compiz

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  • #61
    Originally posted by unbroken View Post
    Never seen any dwm crash. Broken ram perhaps?
    Or broken system.

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    • #62
      For me, the cost of using compiz is the lack of antialiasing on games. As soon as compiz is enabled i loose Antialiasing.

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      • #63
        Originally posted by unbroken View Post
        Never seen any dwm crash. Broken ram perhaps?
        I've never seen dwm crash either. Hell say what you want about windows but aero is WAY more stable than compiz. And aero also doesn't effect gaming performance like compiz.

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        • #64
          Originally posted by unbroken View Post
          Never seen any dwm crash. Broken ram perhaps?
          Mainly crashes when running games that don't list windows vista or 7 as supported and OpenGL based games. I can assure you ram and video card are fine. A couple of times I have seem it crash with steam based games. I have also seen it crash when minimizing games and alt-tabbing between a game and another application as well.

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          • #65
            Originally posted by bwat47 View Post
            And aero also doesn't effect gaming performance like compiz.
            By what we saw in Phoronix benchmarks, Compiz+Catalyst doesn't affect gaming performance while Compiz+NVidia does. So it's an NVidia problem, not a Compiz one.
            Also, we have not seen a windows test with aero enabled/disabled to say some things for sure. Do we?

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            • #66
              Originally posted by GNU/Blind View Post
              Mainly crashes when running games that don't list windows vista or 7 as supported and OpenGL based games. I can assure you ram and video card are fine. A couple of times I have seen it crash with source based games. I have also seen it crash when minimizing games and alt-tabbing between a game and another application as well.
              damn the 1 minute edit policy.

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              • #67
                Originally posted by Apopas View Post
                By what we saw in Phoronix benchmarks, Compiz+Catalyst doesn't affect gaming performance while Compiz+NVidia does. So it's an NVidia problem, not a Compiz one.
                Also, we have not seen a windows test with aero enabled/disabled to say some things for sure. Do we?
                its common knowledge aero does nothing to game performance.

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                • #68
                  Originally posted by Apopas View Post
                  By what we saw in Phoronix benchmarks, Compiz+Catalyst doesn't affect gaming performance while Compiz+NVidia does. So it's an NVidia problem, not a Compiz one.
                  Also, we have not seen a windows test with aero enabled/disabled to say some things for sure. Do we?
                  Doesn't affect performance on ATi because AA/AF settings won't stick with compiz on.

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                  • #69
                    Originally posted by bwat47 View Post
                    And aero also doesn't effect gaming performance like compiz.
                    Because aero is disabled then? Btw. Kwin is rock solid.

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                    • #70
                      Originally posted by bwat47 View Post
                      its common knowledge aero does nothing to game performance.
                      It was common knowledge for centuries that windows would pwn Linux in gaming performance till we saw Phoronix benchmarks few days ago.
                      I don't say you are wrong but common knowledge does prove nothing. Show me sources.

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                      • #71
                        Aero does impair gaming performance as it disables itself on fullscreen. You can see this for yourself when you compare fullscreen to windowed. Case closed.

                        Aero is indeed very stable, but Linux is in constant development and deployement. Maybe Aero was considdered stable before Vista for all you know.

                        But... Windows has come a long way in terms of stability! Now they must focus, and they are with Windows 7, on speed and security improvement. With the legacy cruft and tools from the stonage it is inarguable that the people who coded key parts of Windows 7 are gods.

                        That doesn't take away that Linux is more awesome alround, though.

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                        • #72
                          My experiences with the recent (Late 2009 / early 2010) Catalyst releases, on a HD5970, agree with Michael's tests. In fact, I often find that everything -- 2D and 3D rendering -- is much, much faster with Compiz enabled than otherwise!

                          For instance, with Chrome (which does 2D rendering for normal text and such), scrolling the screen without compiz provides a very noticeable tearing effect and a "long" delay of about 0.25 - 0.5 seconds before the screen refreshes to display the new content. With compiz enabled, scrolling is as smooth in Chrome on Ubuntu as it is on a Mac Pro in Safari -- and we all know Apple has OCD when it comes to smooth scrolling.

                          I do indeed praise ATI for finally providing an optimized composited desktop. They still have some bugs to work out in the 3d driver, but it seems fglrx isn't the bogeyman it used to be. And yeah, they need to better keep up with Xorg and kernel releases

                          Still notice bad tearing when dragging windows on the desktop, but only when moving the window fast.

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                          • #73
                            some different tests

                            hi folks

                            have a look here: http://www.tomshardware.com/reviews/...x,2634-11.html there are some more tests for this. Seems there is some major regresion on 10.04 either X or kernel. 8.04 wipes the floor with it with the same driver.

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                            • #74
                              Originally posted by haplo602 View Post
                              hi folks

                              have a look here: http://www.tomshardware.com/reviews/...x,2634-11.html there are some more tests for this. Seems there is some major regresion on 10.04 either X or kernel. 8.04 wipes the floor with it with the same driver.
                              They used older mesa dri driver, adding x-swat ppa solves that issue. Lucid had a horrible memory leak with the newer mesa so they took that off but now that issue has been resolved.

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