[Bug 58575] New: Low performance in an old Directx8 Sonic fangame in wined3d

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58575

Bug ID: 58575
           Summary: Low performance in an old Directx8 Sonic fangame in
                    wined3d
           Product: Wine
           Version: 10.11
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: d3d
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

This game has a built-in fps counter. After launching it, I was surprised to
find that it ran at only 30 fps in the hub area, while on windows it runs at
60. It is seemingly ok in the gameplay, but fps is often several values short
of 60, and there are also rarer drops to 30 for several seconds. There are no
warnings in the console other than related to directsound. DXVK works at a
locked 60 fps, so that means that it's a problem with wined3d.
Here is the link to the game: https://gamejolt.com/games/sonic3d/28626

[Bug 58575] Low performance in an old Directx8 Sonic fangame in wined3d

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58575

Zak  changed:

What    |Removed                     |Added
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                 CC|                            |[e-mail]

--- Comment #1 from Zak  ---
After some testing, I am back with some additional info.
I played it again yesterday, and noticed that the fps in the hub area is a bit
higher. Like 15-20 fps. Then I realised that I had switched my session to
wayland. After switching back to X, my fps fell by 15-20 again.
X had more severe fps fall, but wayland had more weird splitsecond stutters
that didn't really show up on mangohund. 
Performance on the 3rd level on wayland was pretty low, 40-50 fps. Never hit 60
on this and the next one.

[Bug 58575] Low performance in an old Directx8 Sonic fangame in wined3d

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58575

Austin English  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |download, performance

[Bug 58575] Low performance in an old Directx8 Sonic fangame in wined3d

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58575

--- Comment #2 from Zak  ---
After more testing, I have some even more interesting data. After remembering
that wine 9 introduced 64-bit processes for 32-bit apps, I had a suspicion that
maybe it had worked fine before. So I downloaded a wine 8.21 appimage, and
found that the game ran at a locked 60fps there. But after I tried it in wine
9.21, things became even more interesting, because it turned out that the
performance was WORSE than it is now. So some related or unrelated bugfixes
improved the performance.