I have installed perf, and am gathering some data. I am afraid my data
may be slightly skewed, though, as I am seeing nvidia stuff topping
the list of performance hogs. But, I thought that someone above had
commented that they see the same bug even without nvidia hardware. I
have a couple of machines I can test with, but they all have nvidia
cards.
Currently, on the machine from which I am reporting, compiz has
climbed to about 8% CPU usage. I ran perf record -p {compiz PID} for
only a few seconds.
I then ran perf report to get the following output.
Of course, there is more output. I can attach it if anyone would like
to see it. I will use perf some more as compiz CPU escalates.
On Sun, Jan 29, 2012 at 9:45 AM, Ben Gamari <email address hidden> wrote:
> Daniel, this seems like exactly the task for a statistical profiler such
> as perf (https://perf.wiki.kernel.org/).
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/888039
>
> Title:
> Gradual degradation in desktop performance.
>
> Status in Compiz:
> Confirmed
> Status in “compiz” package in Ubuntu:
> Confirmed
>
> Bug description:
> Over the span of 1-3 days I see my desktop consistently become more
> sluggish. The functions most affected are window movement, file icon
> movement, and sometimes window resizing. Other animations (such as
> minimizing fades, switching desktops, expo mode) are not affected when
> this degradation occurs. They remain smooth; however, I have let the
> problem go on as long as to find out that eventually all desktop
> animations/effects will degrade, it just takes a lot lot longer. I
> find that my actual 3D gaming goes unaffected (though I have no data
> to back that up, perhaps it does).
>
> I have recorded the output of 'ps auxw' and have slowly watched the
> VSZ and RSS memory columns creep upwards. A fresh compiz session will
> see 675164 and 169860, respectively. After a day or two it will result
> in as high as 878552 and 255664. I have attached a log output from an
> hourly cron job (though I had suspended for a few days because of
> travel).
>
> After the degradation has occurred compiz will consistently use higher
> CPU. Dragging a terminal window while watching top: before: ~10%,
> after: ~30 percent.
>
> This has been an issue since 11.04 for me on both my Intel i915 and
> Nvidia (proprietary) machines (had an 8600 GT and upgraded to 560 GTX,
> both having the same issue). However, the nvidia machine is where it
> really hurts, _always_ happening within a day or two, while the i915
> machine is pretty reliable overall with certain instances of
> degradation (used to be affected just as badly in 11.04).
>
> I will attach two videos demonstrating behavior before and after.
> ---
> ApportVersion: 1.23-0ubuntu4
> Architecture: amd64
> CheckboxSubmission: 33c9cec13de798ee31ce4ea2f2cbd4df
> CheckboxSystem: 4ed15c40009aa6f7770f606350a390a2
> CompizPlugins: [core,detection,composite,opengl,decor,regex,winrules,compiztoolbox,animation,grid,vpswitch,snap,place,gnomecompat,resize,move,mousepoll,imgpng,workarounds,session,expo,wall,fade,scale,unityshell]
> DistroCodename: oneiric
> DistroRelease: Ubuntu 11.10
> DistroVariant: ubuntu
> InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
> NonfreeKernelModules: nvidia
> Package: compiz 1:0.9.6+bzr20110929-0ubuntu5vv1
> PackageArchitecture: all
> ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
> Tags: oneiric running-unity oneiric running-unity ubuntu
> Uname: Linux 3.0.0-12-generic x86_64
> UnreportableReason: This is not a genuine Ubuntu package
> UpgradeStatus: Upgraded to oneiric on 2011-10-13 (26 days ago)
> UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/compiz/+bug/888039/+subscriptions
I have installed perf, and am gathering some data. I am afraid my data
may be slightly skewed, though, as I am seeing nvidia stuff topping
the list of performance hogs. But, I thought that someone above had
commented that they see the same bug even without nvidia hardware. I
have a couple of machines I can test with, but they all have nvidia
cards.
Currently, on the machine from which I am reporting, compiz has
climbed to about 8% CPU usage. I ran perf record -p {compiz PID} for
only a few seconds.
I then ran perf report to get the following output.
# Events: 2K cycles ....... ....... ....... ... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ...... glcore. so.280. 13 [.] 0x1213c01 graphics- 1.0.so. 0.1600. 0 [.] :__normal_ iterator< int*, std::vector<int, find<__ gnu_cxx: :__normal_ iterator< int*, ::damaged( )
#
# Overhead Command Shared Object
# ........ ....... .......
.......
#
23.72% compiz libnvidia-
15.94% compiz libnux-
__gnu_cxx:
std::allocator<int> > > std::__
std::
9.67% compiz [kernel.kallsyms] [k] 0xffffffff81031dba
4.64% compiz libc-2.13.so [.] __cfree
3.84% compiz libc-2.13.so [.] _int_malloc
3.74% compiz libc-2.13.so [.] __GI___libc_malloc
1.91% compiz libGL.so.280.13 [.] 0x71d95
1.71% compiz libc-2.13.so [.] _int_free
1.29% compiz libcomposite.so [.]
CompositeWindow
Of course, there is more output. I can attach it if anyone would like
to see it. I will use perf some more as compiz CPU escalates.
On Sun, Jan 29, 2012 at 9:45 AM, Ben Gamari <email address hidden> wrote: /perf.wiki. kernel. org/). /bugs.launchpad .net/bugs/ 888039 e31ce4ea2f2cbd4 df 7770f606350a390 a2 ,composite, opengl, decor,regex, winrules, compiztoolbox, animation, grid,vpswitch, snap,place, gnomecompat, resize, move,mousepoll, imgpng, workarounds, session, expo,wall, fade,scale, unityshell] dules: nvidia bzr20110929- 0ubuntu5vv1 ture: all ature: Ubuntu 3.0.0-12.20-generic 3.0.4 /bugs.launchpad .net/compiz/ +bug/888039/ +subscriptions
> Daniel, this seems like exactly the task for a statistical profiler such
> as perf (https:/
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https:/
>
> Title:
> Gradual degradation in desktop performance.
>
> Status in Compiz:
> Confirmed
> Status in “compiz” package in Ubuntu:
> Confirmed
>
> Bug description:
> Over the span of 1-3 days I see my desktop consistently become more
> sluggish. The functions most affected are window movement, file icon
> movement, and sometimes window resizing. Other animations (such as
> minimizing fades, switching desktops, expo mode) are not affected when
> this degradation occurs. They remain smooth; however, I have let the
> problem go on as long as to find out that eventually all desktop
> animations/effects will degrade, it just takes a lot lot longer. I
> find that my actual 3D gaming goes unaffected (though I have no data
> to back that up, perhaps it does).
>
> I have recorded the output of 'ps auxw' and have slowly watched the
> VSZ and RSS memory columns creep upwards. A fresh compiz session will
> see 675164 and 169860, respectively. After a day or two it will result
> in as high as 878552 and 255664. I have attached a log output from an
> hourly cron job (though I had suspended for a few days because of
> travel).
>
> After the degradation has occurred compiz will consistently use higher
> CPU. Dragging a terminal window while watching top: before: ~10%,
> after: ~30 percent.
>
> This has been an issue since 11.04 for me on both my Intel i915 and
> Nvidia (proprietary) machines (had an 8600 GT and upgraded to 560 GTX,
> both having the same issue). However, the nvidia machine is where it
> really hurts, _always_ happening within a day or two, while the i915
> machine is pretty reliable overall with certain instances of
> degradation (used to be affected just as badly in 11.04).
>
> I will attach two videos demonstrating behavior before and after.
> ---
> ApportVersion: 1.23-0ubuntu4
> Architecture: amd64
> CheckboxSubmission: 33c9cec13de798e
> CheckboxSystem: 4ed15c40009aa6f
> CompizPlugins: [core,detection
> DistroCodename: oneiric
> DistroRelease: Ubuntu 11.10
> DistroVariant: ubuntu
> InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
> NonfreeKernelMo
> Package: compiz 1:0.9.6+
> PackageArchitec
> ProcVersionSign
> Tags: oneiric running-unity oneiric running-unity ubuntu
> Uname: Linux 3.0.0-12-generic x86_64
> UnreportableReason: This is not a genuine Ubuntu package
> UpgradeStatus: Upgraded to oneiric on 2011-10-13 (26 days ago)
> UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
>
> To manage notifications about this bug go to:
> https:/