I just wanted to say that there is seems to be no evidence of memory usage growing. I am not sure how a vector could be growing without memory growing.I guess it could be growing in a pre-allocated space, though. But another update... the work pc shows compiz now at 47% since Fri afternoon. I ran another perf top -p compizPID on it. I think my previous output was truncated, so here is another output with more info in the line. I guess this is some kind of a trace. Maybe it will help. Finally, I will have to restart compiz on my work pc tomorrow. Is there any more info anyone would like to gather while we have an opportunity to get to this bug ?
PerfTop: 372 irqs/sec kernel: 1.9% exact: 0.0% [1000Hz cycles], (target_pid: 1898) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- samples pcnt function DSO _______ _____ __________________________________________________________________________________________________________________________________________ _______________________________ 5419.00 97.0% __gnu_cxx::__normal_iterator<int*, std::vector<int, std::allocator<int> > > std::__find<__gnu_cxx::__normal_iterator<int*, std::vector<int, std::allocator<int> > >, int>(__gnu_cxx::__normal_iterator<int*, std::vector<int, std::allocator<int> > >, __gnu_cxx::__normal_iterator<int*, std::vector<int, std::allocator<int> > >, int const&, std::random_access_iterator_tag) libnux-graphics-1.0.so.0.1600.0 Thank you for all input and work ! Michael Knap http://michaelknap.net Instructor and Researcher Mathematics and Controls Engineering Center of Excellence in Information Systems Tennessee State University On Sun, Jan 29, 2012 at 9:34 PM, Daniel van Vugt <vanv...@gmail.com> wrote: > Admittedly it should probably be using std::set (find = O(lgN)) instead > of std::vector (find = O(N)). But we might be looking at the wrong code > completely... > > -- > 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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/888039 Title: Gradual degradation in desktop performance. To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/888039/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs