Lars, thanks for the general RT observations (what exactly is a 'viritualisation issue' provided I dont use virtualisation?)
can you say anything about the *LinuxCNC* source level changes which happened, in particular to rtapi and hal? - Michael Am 27.08.2012 um 19:29 schrieb Lars Segerlund: > Check out www.osadl.org they have a test rack with timings, for arm, > mips, x86 amd64 and some. > There should be a page to the wiki there to. > > Usually if you have bad hardware or a bad driver it will be a no go, > but if you have good hardware it should work fine, when checking the > numbers remember these systems are under heavy load. > > Also if testing, don't forget to set RT priority ! ( btw. there is a > debian rt-preempt kernel , try it > > So an decent hardware you will not get below 10 us jitter, but > whitout stretching it you should get somewhere between 20-40 depending > on system. > > In general, worse jitter than RT-Linux or RTAI , BUT better worst > cases ..... ie. worst cases are not very frequent, and not as big. > > Try a greater than 3.0 kernel, and I think there are virtualisation > issues ..... please report back ! > > / regards, Lars Segerlund. > > > 2012/8/27 Michael Haberler <[email protected]>: >> >> Am 27.08.2012 um 18:45 schrieb Lars Segerlund: >> >>> I am ... what do you want to know ? >> >> First I would like to understand what the major differences and restrictions >> are; at first glance this looks very similar to a SIM setup to me >> >> Also I'd like to figure how mature this is and if it could be a merge >> candidate for LinuxCNC >> >> a README.rt-preempt like "we did this and that" would be stunning ;) >> >> I managed to compile git://gitorious.org/emc-rt-preempt/emc-rt-preempt.git >> branch linuxcnc-buesch-rt on a 2.6.31-11-rt kernel (virtualbox) but >> runtests fails on me; I'll retry on a real machine >> >> background: I want a non-RTAI HAL environment to try on smaller devices like >> ARM >> >> - Michael >> >>> >>> / Lars >>> >>> 2012/8/27 Michael Haberler <[email protected]>: >>>> please get in touch with me >>>> >>>> thanks >>>> >>>> -Michael >>>> >>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> Live Security Virtual Conference >>>> Exclusive live event will cover all the ways today's security and >>>> threat landscape has changed and how IT managers can respond. Discussions >>>> will include endpoint security, mobile security and the latest in malware >>>> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ >>>> _______________________________________________ >>>> Emc-developers mailing list >>>> [email protected] >>>> https://lists.sourceforge.net/lists/listinfo/emc-developers >>> >>> ------------------------------------------------------------------------------ >>> Live Security Virtual Conference >>> Exclusive live event will cover all the ways today's security and >>> threat landscape has changed and how IT managers can respond. Discussions >>> will include endpoint security, mobile security and the latest in malware >>> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ >>> _______________________________________________ >>> Emc-developers mailing list >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/emc-developers >> >> >> ------------------------------------------------------------------------------ >> Live Security Virtual Conference >> Exclusive live event will cover all the ways today's security and >> threat landscape has changed and how IT managers can respond. Discussions >> will include endpoint security, mobile security and the latest in malware >> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ >> _______________________________________________ >> Emc-developers mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/emc-developers > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. Discussions > will include endpoint security, mobile security and the latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Emc-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
