[Bug 109212] DiRT Rally elements blinking constantly

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sat Jan 5 20:47:44 UTC 2019


--- Comment #4 from leozinho29_eu at hotmail.com ---
After bisecting the memory reduction I got:

4066610ad4956ff6bb0afefb767d7577b72d6081 is the first new commit
commit 4066610ad4956ff6bb0afefb767d7577b72d6081
Author: Danylo Piliaiev <danylo.piliaiev at gmail.com>
Date:   Wed Jul 11 15:29:00 2018 +0300

    i965: Sweep NIR after linking phase to free held memory


The memory reduction seems to be not related with the textures blinking,

I am getting consistent blinking issues with Mesa git. No matter how many times
I open the game (on this boot it were at least 18 times) it always has
significant graphical glitches.

The memory usage of the game is pretty variable too. At the stages, the best
case of the newer Mesa the game was using only 18% of memory, which is pretty
low. The worst case used 32%. While with the older Mesa I got values as high as
56% of memory.

One way to increase the frequency of the graphical glitches is to use VA-API
encoding the same time, as recording the game with OBS Studio or FFmpeg, for
example. Even then it is noticeable the difference between Mesa version 18.1.9
and git.

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