Hi Zhengyu, Thanks for your response. I was running a minimal set of extensions, but even after disabling all of them, there is no change. You mean a real tty (Ctrl - Alt - F1)? If so, when I run the command on that tty the problem is not present. Gnome shell only reached a maximum of 50% and not 200% as perviously shown. Regards, Pico On Fri, Aug 31, 2012 at 1:38 PM, Zhengyu Xu <xzy3186@xxxxxxxxx> wrote: > 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 > >
