Steven Seeger wrote: > Is it normal for Xenomai to have significant overhead in userspace > compared to older software running RTAI with all realtime threads in > kernel modules? My application makes heavy use of inb/outb with iopl().
Significant overhead in user land can come from significant task switches or a significant number of syscalls. But direct I/O should not bite you. Any suspicious number of faults under /proc/xenomai/faults? How did you measure the overhead in both systems? Jan -- Siemens AG, Corporate Technology, CT SE 2 Corporate Competence Center Embedded Linux _______________________________________________ Xenomai-help mailing list [email protected] https://mail.gna.org/listinfo/xenomai-help
