Comment 0 for bug 888039

Over the span of 1-3 days I see my desktop consistently become more sluggish. The functions most affected are window movement, file 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 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 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.