On Tue, 31 Mar 2015, Neil wrote: > Date: Tue, 31 Mar 2015 14:50:30 -0400 > From: Neil <emc_d...@narwani.org> > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Subject: Re: [Emc-users] Custom EMC installation? -- BINGO! > > Okay guys, we're there at last... It works! Specifically OpenPnP > coexists with LinuxCNC on the same machine. > > Now the not-so-great news... I do not like the latency. At first I > thought I can live with the lower speed, but stepconf only lets me set > the latency to 50000ns, when I'm seeing test values over 1,xxx,xxx ns, > and that's causing jerky/intermittent motion. I'm not sure if I can > manually change it in the config files... can I? The lower speed would > be fine for now, as long as it's not jerky. > > Another thought would be to try installing RTAI. I see some info on > doing it on 12.04, so I may try that... <cringe!> > > Much thanks for all the help guys! > > Cheers, > -Neil.
Are you sure you are running the preemt-rt kernel? Preemt-rt has pretty poor latency on Atom MBs (I think you said you had an Atom) but not 1.x ms bad http://freeby.mesanet.com/atom-330-preempt-rt.png i > > > > ------------------------------------------------------------------------------ > Dive into the World of Parallel Programming The Go Parallel Website, sponsored > by Intel and developed in partnership with Slashdot Media, is your hub for all > things parallel software development, from weekly thought leadership blogs to > news, videos, case studies, tutorials and more. Take a look and join the > conversation now. http://goparallel.sourceforge.net/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
