Comment # 14
on bug 99418
from lei.pero@gmail.com
(In reply to Michel Dänzer from comment #13) > (In reply to lei.pero from comment #7) > > 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).
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