[Bug 68524] radeonsi with glamor has very poor performance with primitives drawing

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=68524

--- Comment #7 from Zhigang Gong <zhigang.gong at gmail.com> ---
(In reply to comment #6)
> (In reply to comment #4)
> 
> Zhigang, note that the radeon driver passes GLAMOR_USE_SCREEN and
> GLAMOR_USE_PICTURE_SCREEN to glamor_init(), so software rendering fallbacks
> are handled entirely within glamor, which incurs a lot of overhead in some
> cases such as the gtkperf Lines test.

Got it. The fallback path in glamor is extremely slow currently.

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