[Bug 101978] [bisected] war thunder performance reduced by ~28%

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101978

--- Comment #1 from higuita at gmx.net ---
Running some of the other benchmarks, i get this:

Benchmark       good    bad     %

patrick         4082    3173    -22
plane           2001    1793    -10
tank (cpu)      1320    1094    -17
tanks           1706    1431    -16

in other benchmarks, the commit did not make much difference, specially on
planes, but on tanks it did a lot, "test drive" with the chi-nu tank (ie: as in
real game play) i get this fps reduction:

chi nu test     25      14      -44%

I also notice that the GPU load also drop mostly in the same degree, but the
sclk get a little higer with more spikes.for the "still scene", where i get
-28% performance, the gpu load drops 32% and about 330-370MHz for before the
commit, but 320-390MHz after the commit

GPU load        55      37      -32
sclk          330-370 320-380

Can a apitrace help in anyway to understand why this affects so much this game

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