[arch-general] gnome-shell performance problems

[Pico Geyer]

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 at 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
>
>