With nvidia 310.19 as packaged by Arch Linux, my system runs fine. After upgrading to 313.18 X uses huge amounts of CPU and I can hardly move windows any more.
The log file of the running X with 313.18 will be attached shortly. won’t be as .gz is an “invalid file extension”. Please fix that too.
[url]http://paste.xinu.at/gyE8Y/[/url] (Link valid for 10 days, will reupload if necessary)
I don’t see anything obviously wrong from your log. When the X server is using a lot of CPU time, what other programs are running? Are any other processes also using CPU time? Can you please install the “perf” program, run “perf record -a” for a while while the X server is using the CPU time, press Ctrl-C, and then attach the output of “perf report”?
Only 2 urxvt are running and only X uses 100%.
As for perf report:
perf report starts an ncurses (or similar) UI, but I think you want perf report --stdio. [url]http://paste.xinu.at/Ryexb/[/url] (since it is still not possible to attach anything other than images)
If you need any other perf output, I’ll be keeping the file for now.
reminds me a bit about my post 313.18, Xorg 1.12.3, 100% CPU usage - Linux - NVIDIA Developer Forums
although it is not as extreme as you mentioned, for me it showed up big time in for example opera