Hello all: I'm just a newbie to this list, so just forgive me if my question is obvious or has been answered many times ;-) I want to do a port from an old system running a proprietary RTOS to a new one based in Linux. My system runs many applications at the same time (GUI, parsers, ...), a few of which are hard real-time. I've searched the web, but am still unable to decide which system to use: RTAI, Xenomai or the PREEMPT_RT patch. Can anyone give me some clue in this issue? Are there any advantages in choosing the PREEMPT_RT patches over Xenomai or RTAI? Running the GUI, which demands a lot of CPU and RAM, can have any effect on the real-time behaviour? I've seen many comparisons, but in this fast-changing world, most of them seem to me to be quite out of date. Any hint will be really helpful, Best regards, Asier -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html