[Bug 22447] Babaschess consumes a lot of CPU

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=22447

Frédéric Delanoy <frederic.delanoy at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |performance
                 CC|                            |frederic.delanoy at gmail.com

--- Comment #1 from Frédéric Delanoy <frederic.delanoy at gmail.com> 2013-05-14 03:42:54 CDT ---
(In reply to comment #0)
> Babaschess is using around 20% CPU1 and 20% CPU2 of my dual core E2100 once
> opened, without doing nothing. On Windows you can see that the program only
> uses around 0-1% CPU.
> 
> What is really strange is that when you open the preferences dialog the CPU
> drops to 2-3%, a much nicer behavior like in windows.
> 
> There is something clearly wrong because the CPU utilization is excessive, when
> the program is doing nothing, no animations, no game analisis...
> 
> I guess that maybe wine is re-drawing constantly some of the sub-windows when
> there is no necessity to redrawn... 
> 
> This is not a regression I have always observed this behaviour on this program.

I've tested with 1.5.29 and I indeed get more CPU usage (8% on a core) on idle
than when opening preferences (0-2%).
Don't know if that's significant, though.

FWIW, the log only contains lines like
fixme:wincodecs:PngDecoder_Block_GetCount 0x23c7730,0x33e918: stub

Can you please retry (with preferably an old CPU) to see if the problem still
occurs for you?

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