[Bug 51200] New: High repaint label volume causes freezing

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51200

Bug ID: 51200
           Summary: High repaint label volume causes freezing
           Product: Wine
           Version: 6.9
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 70075
  --> https://bugs.winehq.org/attachment.cgi?id=70075
Screenshot of the offending pane

In ChessBase 11, using a chess engine (kibitzer) can cause freezing. Since the
display shows the current move the engine is thinking about on a label, in some
positions this can involve requests for repainting every few ms. This often
causes the input to lock up for many seconds as the repaint queue is taking
priority.

This is most likely a repaint issue as the workaround is to place the window so
the offending label is off-screen, and the lock-up no longer becomes an issue.
It makes using the engine much more difficult though. This has been a problem
for at least a year now.

Suggestions are to give the input a higher priority, and/or to drop/throttle
repaint frame requests when the queue becomes too long.