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Bug#593572: marked as done (xorg: Xorg consumes about 12% of CPU when gkrellm running and you switch from X to console)

Your message dated Sat, 26 Feb 2011 12:11:11 +0100
with message-id <20110226111111.GE12480@radis.liafa.jussieu.fr>
and subject line Re: Bug#593572: xorg: Xorg consumes about 12% of CPU when gkrellm running and you switch from X to console
has caused the Debian Bug report #593572,
regarding xorg: Xorg consumes about 12% of CPU when gkrellm running and you switch from X to console
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
593572: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=593572
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: xorg
Version: 1:7.5+6
Severity: normal


when I am running gkrellm in Xorg and then switch from Xorg to console,
Xorg consumes about 12 % of CPU.

This happens when gkrellm or firefox displaying web page with flash is
running. I tried the same with application like mplayer or vlc and
problem did not occur. Moreover when I run only mplayer playing some
video and I switch to console, Xorg consumes nearly no CPU time.

When I am in Xorg, gkrellm runs OK, the problem occurs only when I
switch from Xorg to console. Similarly with flash. In case of gkrellm
running, Xorg consumes about 2% of CPU when in Xorg and 12% when in
console. In case of flash, Xorg consumes about 4% of CPU when switched
to Xorg and 24% when switched to console. This CPU usage is
approximately same all the time I am switched to console.

straces of gkrellm seems to be same whether I am in Xorg or in console.
So I tried to strace Xorg process. I don't know what to look for, but
here are some statistics if you are interested.

I ran strace on Xorg for 60 seconds with and without gkrellm running:

without gkrellm:
% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
 63.27    0.000310           0      3242           ioctl
 18.57    0.000091           0       394           setitimer
 11.02    0.000054           0       392       195 read
  7.14    0.000035           0       635           clock_gettime
  0.00    0.000000           0        61           munmap
  0.00    0.000000           0       197           select
  0.00    0.000000           0       136           writev
------ ----------- ----------- --------- --------- ----------------
100.00    0.000490                  5057       195 total

with gkrellm running:
% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
 99.71    8.556992          87     98452           ioctl
  0.28    0.024115          23      1065           select
  0.00    0.000294           0      2130           setitimer
  0.00    0.000126           0      1726       836 read
  0.00    0.000113           0      2504           clock_gettime
  0.00    0.000104           2        61           munmap
  0.00    0.000060           0       195           writev
  0.00    0.000000           0       244         6 sigreturn
------ ----------- ----------- --------- --------- ----------------
100.00    8.581804                106377       842 total

I counted ioctl request codes:

ioctl request code      gkrellm not running     gkrellm running
------------------      -------------------     ---------------
0xc00c6466              181                     1345
0xc010645b              60                      60
0xc020645e              60                      65
0x400c645f              1440                    48858
0x40046460              1440                    48062
0x40086409              61                      61

You can find whole straces in
http://coulomb.farm.particle.cz/~elias/bug/ if you are interested.
There is also my xorg.conf and some Xorg.log files.



-- System Information:
Debian Release: squeeze/sid
  APT prefers testing
  APT policy: (500, 'testing'), (500, 'stable')
Architecture: i386 (i686)

Kernel: Linux 2.6.32-5-686 (SMP w/2 CPU cores)
Locale: LANG=sk_SK.UTF-8, LC_CTYPE=sk_SK.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages xorg depends on:
ii  gnome-terminal [x-terminal-em 2.30.2-1   The GNOME terminal emulator applic
ii  libgl1-mesa-dri               7.7.1-3    A free implementation of the OpenG
ii  libgl1-mesa-glx [libgl1]      7.7.1-3    A free implementation of the OpenG
ii  libglu1-mesa                  7.7.1-3    The OpenGL utility library (GLU)
ii  x11-apps                      7.5+5      X applications
ii  x11-session-utils             7.5+1      X session utilities
ii  x11-utils                     7.5+4      X11 utilities
ii  x11-xfs-utils                 7.4+1      X font server utilities
ii  x11-xkb-utils                 7.5+5      X11 XKB utilities
ii  x11-xserver-utils             7.5+1+b1   X server utilities
ii  xauth                         1:1.0.4-1  X authentication utility
ii  xfonts-100dpi                 1:1.0.1    100 dpi fonts for X
ii  xfonts-75dpi                  1:1.0.1    75 dpi fonts for X
ii  xfonts-base                   1:1.0.1    standard fonts for X
ii  xfonts-scalable               1:1.0.1-1  scalable fonts for X
ii  xfonts-utils                  1:7.5+2    X Window System font utility progr
ii  xinit                         1.2.0-2    X server initialisation tool
ii  xkb-data                      1.8-1      X Keyboard Extension (XKB) configu
ii  xorg-docs-core                1:1.5-1    Core documentation for the X.org X
ii  xserver-xorg                  1:7.5+6    the X.Org X server
ii  xterm [x-terminal-emulator]   261-1      X terminal emulator

xorg recommends no packages.

Versions of packages xorg suggests:
ii  xorg-docs                     1:1.5-1    Miscellaneous documentation for th

-- no debconf information

--- End Message ---
--- Begin Message --- 
On Sat, Feb 26, 2011 at 09:35:33 +0100, Marek Eliáš wrote:

> On Thu, Aug 19, 2010 at 01:19:10PM +0100, Julien Cristau wrote:
> > Please keep the bug report cc:ed on replies.
> > 
> > On Thu, Aug 19, 2010 at 13:38:56 +0200, Marek Eliáš wrote:
> > 
> > > Maybe. I was about to file bugreport for gkrellm because It seemed to be
> > > only application doing this. But in the last moment I found flash and
> > > when I realized that nearly all my info is about behaviour of Xorg, I
> > > filed it for xorg. I don't care about flash. If consider this as
> > > gkrellm's bug, are you able to forward it to gkrellm? Or should I send
> > > the same report to gkrellm?
> > > 
> > Try to figure out what commands gkrellm keeps sending to X when switched
> > away.  Something like xtrace might help.
> In squeeze this behaviour doesn't occure anymore. gkrellm runs ok, flash
> too. I think the bug can be closed.
> 
Thanks, closing.

Cheers,
Julien

--- End Message ---
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