[Bug 53327] Ragnarok Online bad performance

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53327

--- Comment #4 from Zeb Figura  ---
(In reply to Matteo Bruni from comment #3)
> Interesting, thanks for the bisect.
>
> Did you happen to see if it's the game or us that is calling
> NtYieldExecution()? My guess would be that it's wined3d, either
> wined3d_resource_wait_idle() or wined3d_cs_mt_finish(), and the proper fix
> to remove the cause of that call.
>
> I'll have a look eventually...

Neither, exactly, it's calling Sleep(0), otherwise e86b4015ff4 wouldn't break
it again. And all of the calls to Sleep(0) are coming from the game binary.