I have an intel NUC with an N3050 in it. Just running Firefox and gnome system monitor seems to keep the CPU usage at 100% (sometimes but not others)! I am using it as a media center, and first noticed it when I was running kodi and mythtv. When watching a recording, it would every now and then freeze and then catch up, and then a video file (mkv H.264) was playing really poorly (not smooth at all) while myth was recording. I looked at the system monitor and found that at least 1 of the cores was at 100%.
I put a post on the kodi forums (http://forum.kodi.tv/showthread.php?tid=257980) and one of the responses was to say that the Braswell processors have issues with the kernel.
Has anyone had these issues, are there any ways around this without having to go away from the stable versions of Ubuntu?