<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - DRI3 Stuttering while scrolling in Chromium/Chrome with VBLANK off" href="https://bugs.freedesktop.org/show_bug.cgi?id=99418#c14">Comment # 14</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - DRI3 Stuttering while scrolling in Chromium/Chrome with VBLANK off" href="https://bugs.freedesktop.org/show_bug.cgi?id=99418">bug 99418</a> from <a class="email" href="mailto:lei.pero@gmail.com" title="lei.pero@gmail.com">lei.pero@gmail.com</a> <pre>(In reply to Michel Dänzer from <a href="show_bug.cgi?id=99418#c13">comment #13</a>) > (In reply to lei.pero from <a href="show_bug.cgi?id=99418#c7">comment #7</a>) > > Sure, i will, it's like performace loss, I'm not sure if video would do the > > justice, > > Indeed, I'm afraid I can't see much difference, though the DRI2 videos do > seem slightly smoother. > > Can you create another comparison video with the environment variable > GALLIUM_HUD=.dfps,requested-VRAM+VRAM-usage,requested-GTT+GTT-usage, > cpu+temperature+GPU-load,.dnum-bytes-moved,.dbuffer-wait-time,.dnum- > compilations+num-shaders-created set when starting chromium? It should > overlay some graphs showing the framerate and other performance related > values. > > > > I think this is hardware specific onr adeon driver (only?). > > Does it not happen using the modesetting driver instead of radeon? Sure, I did it, will upload now. It does happen on modesetting driver regardless of DRI version, strange. It's most visible on Chrome/ium scrolling, but I can also notice it in standard GNOME-shell animations (for example, after logging in startup animation is not smooth as it should be/as it is on radeon DRI2), hope this information helps a bit. I'm very positive i can notice same behaviour in games also (I'm not a gamer, so just a few I play).</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>