Comment #4 on issue 193 by stevenc49: conky uses 100% cpu after starting it and moving the mouse (XMonadContrib) http://code.google.com/p/xmonad/issues/detail?id=193 I'm not too sure about #2 resizing but with xmonad and a focused workspace on conky, the CPU spike up. I went into my ~/.conkyrc and found out that commenting out "own_window yes" will solve the problem.