I installed xbmc (eden) in VMware vSphere this evening to try to learn how to configure my HDHomeRun, so that I can record TV shows on my HTPC.
I found however that xbmc.bin was using almost 100% CPU after installation.
The solution was to edit home/.xbmc/userdata/advancedsettings.xml and add the following:
<gui>
<algorithmdirtyregions>1</algorithmdirtyregions>
<nofliptimeout>0</nofliptimeout>
</gui>
After a reboot my CPU usage was normal – hurrah!
Sources:
http://forum.xbmc.org/showthread.php?tid=126468
http://wiki.xbmc.org/index.php?title=Userdata
Just to follow up I had to use this workaround on my physical XBMC installation after recently installing XBMCbuntu 12 (Frodo).