[Bug 15925] World of Warcraft: Extreme FPS drop since 3.0.2

wine-bugs at winehq.org wine-bugs at winehq.org
Wed Jul 15 12:02:55 CDT 2009


--- Comment #47 from Norbert Lataille <nonal at freesurf.fr>  2009-07-15 12:02:44 ---
(In reply to comment #46)
> It doesn't seem fixed to me at all. With wine 1.1.24 and nvidia-drivers both
> 180.60 and 185.18.14 I still get that unreasonable slowdown in crowded areas
> (like 4fps in a 25man raid). Normally I have like 50fps.  Can anyone else still
> confirm it?
> Should this bug be reopened or should i file a new one?

You should first confirm if this is a real bug... 

Let me explain:
=> WoW, even on Windows has real slowdowns on crowded cities like dalaran. This
game basically _does_ not scale. These cities are too small, and most of game
cycles are lost in the game code itself (do an oprofile to check it !). Blame
=> The GL drivers on linux are not as performant as windows ones. Bascially
they are not threading command buffer generation. Blame ATI/NV !

Have you tried to dual-boot and test WOW in the same box on windows with
-opengl ? I did not notice that a huge difference myself. Maybe you will... 

Truth is this game does not take profit of multicore, has a sub-par (compared
to its DX) GL backend, and that wine does not account for a lot of the cycles
(it is just wrapping some FS and GL calls)

PS: remove the VBO disable flag in regedit if you added any ! That's reducing
FPS by removing access to modern GL interfaces ! What a bad advice...

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