Comment 16 for bug 599425

I have rhythmbox, chromium, nautilus, evolution and gwibber running but the mutter cpu usage is 2-4% but if I start xchat mutter's cpu usage does not fall from 15% constantly.

switching between apps spike mutter usage to 20% by alt+tab and 30+% by using mouse. Playing a video song in Totem causes mutter to ~45%