Kent A. Reed wrote: > > As for PREEMPT_RT, I have no idea whether it gives acceptable real-time > performance, has an acceptable API, or is easy/hard to connect to EMC2 > code. Perhaps some of the core developers can comment. > From reading the RTAI list, I think the answer is no. Prempt_RT is not awful, but it seems to give as much as 100 us jitter on machines that give 5 us jitter with RTAI. This might barely be acceptable on a servo machine, but would be a big problem on a system with software step generation.
There is a reason we use RTAI, it is the only open-source RT package that gives such good latency and jitter performance. Jon ------------------------------------------------------------------------------ Achieve unprecedented app performance and reliability What every C/C++ and Fortran developer should know. Learn how Intel has extended the reach of its next-generation tools to help boost performance applications - inlcuding clusters. http://p.sf.net/sfu/intel-dev2devmay _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
