Thank you for your bug. Could you get a backtrace (https://wiki.ubuntu.com/DebuggingProgramCrash) when it's using the cpu?
** Changed in: gnome-system-monitor (Ubuntu) Importance: Undecided => Low Assignee: (unassigned) => Ubuntu Desktop Bugs Status: Unconfirmed => Needs Info -- Excessive CPU usage by Gnome System Monitor https://launchpad.net/bugs/93847 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs