[arch-general] gnome-shell performance problems

[Zhengyu Xu]

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