[Bug 57849] New: Multiple games: sleep accuracy is affected by mouse movement speed

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57849

            Bug ID: 57849
           Summary: Multiple games: sleep accuracy is affected by mouse
                    movement speed
           Product: Wine
           Version: 10.1
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: wineserver
          Assignee: wine-bugs(a)winehq.org
          Reporter: wine(a)horvath.blog
      Distribution: ---

I noticed a problem occurring in osu! (stable) and AimLabs, where the in-game
frame limiter would suddenly have worse accuracy when the mouse is moved. For
example, an in-game frame limiter of 500fps will show ~2ms frame-time ingame,
but when moving the mouse quick enough it will increase up to ~2.5ms. This
maximum +0.5ms increase is constant from any starting value.

This behavior depends on mouse report rate and movement speed (more reports ->
+0.5ms frame-time is reached faster), and is exacerbated when the wine-staging
`user32-rawinput-mouse` patchset is applied. I can only presume that this is
because there are more more hardware messages exchanged with wineserver (which
the staging patchset further increases).

Furthermore, both of these games use alertable SleepEx to control the frame
limiter.

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[Bug 57849] Multiple games: sleep accuracy is affected by mouse movement speed

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57849

--- Comment #1 from William Horvath <wine(a)horvath.blog> ---
I've opened https://gitlab.winehq.org/wine/wine/-/merge_requests/7392 as a
potential fix for this.

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[Bug 57849] Multiple games: sleep accuracy is affected by mouse movement speed

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57849

William Horvath <wine(a)horvath.blog> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|UNCONFIRMED                 |RESOLVED
      Fixed by SHA1|                            |87ca5db40e2c1b37423bdc25101
                   |                            |a5c5e39e67e6f

--- Comment #2 from William Horvath <wine(a)horvath.blog> ---
Marking as resolved. Fixed by e953635f06a0421d72583ac70a7d992d5b5ac74a on
non-Linux platforms, and 87ca5db40e2c1b37423bdc25101a5c5e39e67e6f on Linux
(>5.10).

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[Bug 57849] Multiple games: sleep accuracy is affected by mouse movement speed

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57849

Alexandre Julliard <julliard(a)winehq.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #3 from Alexandre Julliard <julliard(a)winehq.org> ---
Closing bugs fixed in 10.3.

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