[Bug 99418] DRI3 Stuttering while scrolling in Chromium/Chrome with VBLANK off

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99418

--- Comment #13 from Michel Dänzer <michel at daenzer.net> ---
(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?

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