[Bug 44260] Dungeon Keeper 2 crashs or works very slow

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=44260

Gabriel Majeri <gabriel.majeri6 at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |gabriel.majeri6 at gmail.com

--- Comment #2 from Gabriel Majeri <gabriel.majeri6 at gmail.com> ---
I have found the reason for this bug.

Using the `perf` tool and building `wined3d.dll` with debug symbols, I've found
out that the app spent most of its time in CSMT code:

> perf report

33,88%  DKII-DX.exe wined3d.dll.so [.] wined3d_cs_mt_finish
21,72%  DKII-DX.exe wined3d.dll.so [.] wined3d_cs_queue_is_empty
9,77%   DKII-DX.exe wined3d.dll.so [.] wined3d_cs_run

Based on https://wiki.winehq.org/Performance, it seemed to be an issue with
CSMT. 

Indeed, after disabling CSMT, game works perfectly, performance is at least as
good as on Windows.

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