Hi Pico, Have you tried to check your cpu usage after disabling all the gnome-shell-extensions? And how about the cpu usage when you run the command in tty rather than gnome-terminal? Regards, Z. On Fri, 2012-08-31 at 13:32 +0200, Pico Geyer wrote: > Hi all. > > I'm having a performance issue with gnome shell and I wonder if anyone > can provide me with some advice. > Gnome shell seems to be using a lot of my cpu resources. > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > 949 pico 20 0 1923m 204m 21m S 203.3 5.4 136:04.53 > gnome-shell > > When I enable threaded mode in top (H) is see this: > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > 953 pico 20 0 1923m 204m 21m R 50.1 5.4 31:22.91 > gnome-shell > 955 pico 20 0 1923m 204m 21m R 48.7 5.4 31:41.81 > gnome-shell > 952 pico 20 0 1923m 204m 21m R 47.1 5.4 31:03.14 > gnome-shell > 954 pico 20 0 1923m 204m 21m R 45.1 5.4 31:22.46 gnome-shell > > That is it's using about 50% of each of my cores on my quad core system. > This high cpu usage starts when I run a command that produces a lot of > output on the terminal. > For my own use case I was importing the boost repostory into git. > git svn clone http://svn.boost.org/svn/boost > But the problem can be reproduced using the 'yes' command as well. > > Can anyone explain this high cpu usage? > It happens even if I minimize the window producing the output. > Is it worth submitting a bug report for it? > > I'm on a T510 Lenovo laptop with an updated Arch and I'm using the > nouveau driver. > > Thanks in advance for any suggestions. > Regards, > Pico
