[Bug 55500] [sna gen4] corrupt rendering (including wrong rendering of characters and flickering on redraw)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=55500

--- Comment #140 from Zdenek Kabelac <zdenek.kabelac at gmail.com> ---
Just to add some more comment on MAX_FLUSH_VERTICES  - when set to valu 96 - it
gives the highest throughput on  x11perf -aa10text 3.7MChar/s  - using any
higher value doesn't make any different (so the max seems to be somewhere 
between <64-96]

Also when this 3.7MChar is rendered - the parallel move of some other window on
the screen becomes very slow - so engine gets overloaded ??

Or the Xserver generates such long queue of events it becomes so slow ?

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