On 11/21/2012 8:17 AM, Michael Haberler wrote: > Am 21.11.2012 um 06:42 schrieb Anders Wallin: > >> On 11/20/2012 8:47 AM, Michael Haberler wrote: >>>> I just verified this combination works, for the standard Raspberry >>>> Raspbian kernel 3.2.27+ with Posix threads (aka 'simulator'), and >>>> with Xenomai 3.2.21 for somewhat better performance >>> Very cool! >>> >>> What sort of latency numbers are you seeing with Xenomai? >>> >> over on the forum there is this link >> http://linuxcnc.mah.priv.at/rpi/rpi-rtperf.html > Errata: I mentioned in this article the default Raspbian kernel is an > rt-preempt-patched kernel - it is not; I got confused with all those PREEMPT > tags. I still have to find a kernel for the Raspberry which has RT_PREEMPT > patches applied. Also, I now have some more clue as to the reasons of some of > the delays; I'll update the paper.
Yeah, the nomenclature is seriously annoying. I haven't looked at the RT-Preempt patches since Spring. I thought the general issue with ARM was lack of high resolution timer support but I didn't look into details. Regards, Kent ------------------------------------------------------------------------------ Monitor your physical, virtual and cloud infrastructure from a single web console. Get in-depth insight into apps, servers, databases, vmware, SAP, cloud infrastructure, etc. Download 30-day Free Trial. Pricing starts from $795 for 25 servers or applications! http://p.sf.net/sfu/zoho_dev2dev_nov _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
