Your Linux Self-Help Desk. A selection of mostly Linux related tutorials, howtos, fixes, news and more.
Read Copy Update Preemption
I switched on the RCU Preemption in the Linux 18.104.22.168 kernel and suddenly noticed stuttering video-playback in mplayer. Seems that sometimes it didn't get its data in time anymore. After I added the -cache 4096 parameter, it was fixed. But I really wonder how that could be, as there was nothing going on in the background.