I have same problem on my Ubuntu 9.04. I'm using freenx and every user connected over network have f-u-s-a running. Those processes causes high cpu load. I'll attach strace.
#top PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 7827 zdenek 20 0 25988 13m 9.9m S 99.5 2.6 0:08.89 fast-user-switc #ps aux zdenek 7827 99.4 2.6 25988 13500 ? R 21:44 3:16 /usr/lib/fast-user-switch-applet/fast-user-switch-applet --oaf-activate-iid=OAFIID:GNOME_FastUserSwitchApplet_Factory --oaf-ior-fd=20 # uname -a Linux nx 2.6.28-14-generic #47-Ubuntu SMP Sat Jul 25 00:28:35 UTC 2009 i686 GNU/Linux ** Attachment added: "strace" http://launchpadlibrarian.net/29806741/nx_server_fast_user_applet_bug-100cpu.txt -- fast-user-switch-applet exhibiting high CPU usage https://bugs.launchpad.net/bugs/373677 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
