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List:       kde-bugs-dist
Subject:    [Bug 234463] Very high CPU usage.
From:       Melchior Franz <mfranz () kde ! org>
Date:       2010-05-28 10:26:55
Message-ID: 20100528102655.0A9B24186E () immanuel ! kde ! org
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https://bugs.kde.org/show_bug.cgi?id=234463





--- Comment #12 from Melchior Franz <mfranz kde org>  2010-05-28 12:26:52 ---
I'm not really sure if this is the same behaviour that I observed on my
machine. It wasn't as dramatic, but maybe it's just that my machine is fast
enough (AMD Athlon64 X2 6000+; 4GB; 2.6.34; GF9500GT + 256.25).

Routinely, but not usually already after a few minutes, my kwin started to drag
the system down. It only caused ~20% load then, but this slowed down the GUI
noticeably. One factor that seemed to trigger it was the use of mplayer (HEAD;
VPAU?). Turning compositing off didn't help here either (IIRC), but restarting
kwin did -- at least for a while: kwin --replace.

What ultimately seems to have "fixed" it for me was the setting under Desktop
Effects->Advanced->Keep window thumbnails: Never. (Don't remember which of the
other two options I had before.)

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