I've recently installed Mountain Lion and the com.apple.dock.extra process is suddenly constantly active - and is maxing my CPU usage. Activity monitor is showing usage running from as low as 45% to ...
The Dock on my MBP Retina is constantly using 70 - 80% of CPU. This happens on the two account on the machine, both of which were migrated from my previous Lion MBP. I don't have Parallels ...