Hi 小龙陈, Thanks for testing. I did not have time to try very many possible cases. <div class="gmail_quote">On Mon, Feb 18, 2013 at 3:19 PM, 小龙陈 <<a href="mailto:chillermillerlong@hotmail.com" target="_blank">chillermillerlong@hotmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi everyone, I did some testing with the new Wayland backend for Dolphin-emu posted here yesterday: <a href="http://lists.freedesktop.org/archives/wayland-devel/2013-February/007470.html" target="_blank">http://lists.freedesktop.org/archives/wayland-devel/2013-February/007470.html</a> Hopefully someone find them useful. Please let me know if you have any questions (I'm no developer :D) or if there's anything else you would like me to test. Best Regards, Xiao-Long Chen ---------- Build info ---------- Dolphin-Emu Git Master -> cmake .. -DCMAKE_INSTALL_PREFIX=/opt/dolphin-emu-master \ -DCMAKE_BUILD_TYPE=Release Dolphin-Emu Wayland-EGL Branch -> Built against wayland commit: df1a934b8b24c9227d427f3035007867993a6612 and weston commit: 1cc9e08d2fbd59e34cf5009acd5067a6b171c20a and mesa commit: dd599188d2868838541859a76800a8420958d358 -> CXXFLAGS="-I/opt/wayland/include -L/opt/wayland/lib" \ cmake .. -DCMAKE_INSTALL_PREFIX=/opt/dolphin-emu-wayland \ -DCMAKE_PREFIX_PATH=/opt/dolphin-emu-wayland \ -DCMAKE_BUILD_TYPE=Release \ -DUSE_EGL=1 \ -DDISABLE_WX=1 \ -DUSE_X11=1 \ -DUSE_WAYLAND=1 ------- Testing ------- The testing was done on a Lenovo W520 with Intel Sandy Bridge graphics and an NVIDIA Quadro 2000m. I used the Intel GPU because nouveau has rendering issues with dolphin. The game tested was Super Smash Bros Brawl (for Wii). The system is running Ubuntu 13.04 with wayland, weston, and mesa compiled from git. I did record videos of all of the tests, but they don't really show anything. Ffmpeg with x11grab had a ~40% performance hit, recordmydesktop was incredibly stuttery and had a low bitrate, and Weston's built in recorder had a ~60% performance hit in full screen mode (and a 10GB file). Needless to say, the videos are useless, so I'll write my general findings on the quality. ---------------------- Dolphin-Emu Git Master ---------------------- Windowed (640x480) -> X11: Always 60 fps Full Screen (1920x1080) -> X11: Usually 60 fps (with no compositing), 49~52 fps (with compositing) ------------------------------ Dolphin-Emu Wayland-EGL Branch ------------------------------ Windowed (640x480) -> X11: Unplayable: Sometimes it runs at 60 fps, but the area from the bottom right corner of the window to the center of the window continuously flickers. Other parts of the screen are also corrupted while the game is running. Other times, the game runs at 0~16 fps and the top ~15% of the window is corrupted. </blockquote><div> This sounds like what I experienced using the GLX path. </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> -> Wayland: Usually 60 fps with occasional slowdown to 57 fps Full Screen (1920x1080) -> X11: Unplayable: same as in windowed mode </blockquote><div> X11+EGL seem to work ok here in windowed and fullscreen. </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> -> Wayland: 57~60 fps with occasional slowdown to 53 fps </blockquote><div> It is noteworthy that the maximum frames per second should never exceed the refresh rate of your monitor, with the current mesa EGL implementation. </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> ------- Quality ------- X11 without compositing was pretty stuttery at times, especially when the game slowed down (ie. with 4 players in SSBB). With compositing enabled, the game was slow, but it was very smooth. Under wayland, the gameplay was very smooth like in X11 w/compositing, but it felt much faster. The fps generally stayed around 60 fps, except during the graphically intensive parts of the game. I was not able to find any rendering issues that didn't exist in X (or Windows, for that matter). X with EGL was completely unplayable. The problems with rendering makes it very hard to press the buttons necessary to even enter the game. </blockquote><div> Thanks for your review. It's nice to have informative testers. </div></div>- Scott