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For some time, I noticed that my xorg process uses up between 60 and 100% of the CPU (according to top). I also noticed that interactive work becomes sluggish, even on my multi-core i7 processor.

After reading several threads on xorg and CPU load, I investigated and found Dropbox to be the culprit. If I disable Dropbox (or just pause the syncing), xorg CPU usage goes down to normal (a few percent).

Any idea what's going on and what can be done about it? It is not like Dropbox is doing anything—there are very few files in the folder and all are perfectly synced already.

I am running Kubuntu 12.10 with 1.13.0 and Dropbox 1.4.0.

share|improve this question
Last time I looked at the dropbox client for Linux, it was a sorry piece of very badly written code. Would have gotten an F- for my students... – vonbrand Jan 15 '13 at 18:11
The bad thing about faulty closed software is that you have got very few possibilities to debug or improve it. You would find amazing things when strace-ing some programs :) Active waits, redundant repeated file accesses and so on. – esperanto Oct 23 '14 at 12:14
Problem should be gone. I use dropbox 3.0.3 and do not experience such issues. – Christian Hujer Dec 31 '14 at 20:45

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