[Bug 92492] [SNA] Input lag on QT based applications

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92492

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[xf86-video-intel][SNA]     |[SNA] Input lag on QT based
                   |Input lag on QT based       |applications
                   |applications                |

--- Comment #1 from Chris Wilson <chris at chris-wilson.co.uk> ---
Based on previous investigations, my immediate suspicion is that the Qt
applications are effectively running unthrottled and build up a long render
queue.

Looking at intel-gpu-top or even intel-gpu-overlay should show the GPU maxed
out (or nearly), and netstat --unix should (if I am right about the backlog
being large enough) show pending bytes from the client to X.

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