[Mesa-dev] [Bug 87886] constant fps drops with Intel and Radeon on Source games

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87886

Eero Tamminen <eero.t.tamminen at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #1 from Eero Tamminen <eero.t.tamminen at intel.com> ---
Has your performance regressed?  This fall there have been some compiler
frontend improvements that allow e.g. more inlining to be done for some
shaders, and as result compilation can take (in worst case even several times)
longer than earlier. See bug 86140.

Recompile messages come from the backend which is separate for AMD and Intel,
i.e. you may need to file separate bugs for each (Intel one would be for
"Drivers/DRI/i965" component).


> This happens with Counter Strike: Global Offensive and Left 4 Dead 2 (only games available for testing), also when standing still in an empty black room.

Please give detailed instructions, how one can reach an "empty black room"
where Mesa will do constant shader recompiles.  Preferably in single player /
tutorial level which doesn't require hours of playing.

(I haven't seen anything like that on HSW in those games.)

Alternatively, you could provide Apitrace trace.

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