[Mesa-dev] [Bug 55998] Pretty huge slowdown in mesa 9.0

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=55998

--- Comment #18 from wojtek <wojtask9 at wp.pl> ---
(In reply to comment #16)
> Unfortunately, I can't seem to reproduce this: I also have KDE 4.9.2 and
> Mesa 9.0, but it appears to work fine for me.

My knowledge about mesa and opengl is very limited so sorry about my
terminology.

To reproduce this bug you must use kwin_gles
(http://blog.martin-graesslin.com/blog/2011/07/running-kwin-with-opengl-es-2-0/).
Using gentoo try set USE flags "gles -opengl" at kwin package.
With kwin default (i think it is call backend) opengl everything is ok.

Like I said in https://bugs.freedesktop.org/show_bug.cgi?id=55856 this not
happen in mesa-9.0_pre20120918.

Until friday I'm not able to bisect mesa to find a commit that cause
regression.
If nobody bisect mesa I will try.

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