[PATCH 14/20] glamor: stub out lines

[Keith Packard]

Markus Wick <markus at selfnet.de> writes:

> But shouldn't UXA be affected as much as glamor by cache issues?

One would think so, but the 2D engine has a very different memory path
than the 3D engine, and it's barely possible that the fact that there
are a sequence of adjacent lines for this test is letting the 2D engine
somehow merge stuff together. All very mysterious.

One thing I might try is to separate the lines by a pixel to see if that
causes a huge drop in UXA performance.

-- 
keith.packard at intel.com
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