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@gmail.com> 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