[Bug 10878] New: WINE Steam using 100% of CPU when its doing nothing

http://bugs.winehq.org/show_bug.cgi?id=10878

Summary: WINE Steam using 100% of CPU when its doing nothing
           Product: Wine
           Version: 0.9.51.
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: wine-misc
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

This is a recent development.   When I run STEAM, it starts normally albeit
slowly, and then eats 100% CPU (on this single core machine) for its entire
lifetime.  No matter which tab is displayed.  This is a relatively new
development, and occurs for me both on Compiz native, and VMWare virtualized
installtions of Ubuntu/WINE 0.9.51 w/ Gnome.

I remember this working fine a couple builds ago, round about 0.9.48-ish.

As for clues to why this happens, I spoke to Valve about this behavior, and it
was suggested that it was polling to refresh the window very rapidly.  I can
reproduce the behavior on Windows by running Steam on a remote windows machine
and using VNC (for example) to view it.  It polls the window causing rapid
redraw, and results in 100% CPU on the remote computer whenever the VNC window
is being displayed.  I'm posting this merely to indicate this might be a clue
as to why it happens.  Its pretty disruptive when it does, because even if you
run a game via steam, it hogs the CPU.  You have to essentially 'nice' it down
to background priority before the game runs smoothly.

This doesn't seem to stop you from actually running games/software, so its not
a critical bug, I suppose, but I figured I'd better submit it here because it
happens, and its new, and it didn't happen before.

[Bug 10878] WINE Steam using 100% of CPU when its doing nothing

http://bugs.winehq.org/show_bug.cgi?id=10878

Vitaliy Margolen  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |trivial
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |WORKSFORME

--- Comment #1 from Vitaliy Margolen   2007-12-23 14:13:45 ---
Works fine here. Make sure it's not downloading something/updating itself. If
it's updating something it will use lots of CPU even on Windows. However even
with it updating 2 games, it still uses less then 100% CPU here.

Do not use compiz with Wine.

[Bug 10878] WINE Steam using 100% of CPU when its doing nothing

http://bugs.winehq.org/show_bug.cgi?id=10878

--- Comment #2 from Nick Lawson   2007-12-30 13:50:30 ---
I retested in 0.9.52
It still happens in both compiz mode, and vmware mode, but in true native
(no-compiz mode), this does not happen.

It happens to windows machines on vmware too, and on windows machines through
VNC, so its probably a steam bug.  Either that, or a combination of WINE+VMWARE
or a funky display driver, or compiz, is redrawing/repolling the steam window
constantly causing it to eat CPU.  I spoke to valve about it directly a couple
months ago, (because people were seeing this on windows/AMD machines natively,
and they said it was because of something constantly polling the window for
some reason).

Minimizing the steam window seems to make this go away, so it at least doesn't
stop you from playing your games, as long as you remember to minimize the
window on game launch.  Otherwise it slows the game down immensely.

[Bug 10878] WINE Steam using 100% of CPU when its doing nothing

http://bugs.winehq.org/show_bug.cgi?id=10878

Vitaliy Margolen  changed:

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

--- Comment #3 from Vitaliy Margolen   2007-12-31 00:15:44 ---
Closing then.