On 02/16/2015 05:47 AM, Sebastian Kuzminsky wrote: > On 02/15/2015 07:32 AM, Marius Alksnys wrote: >> At http://wiki.linuxcnc.org/cgi-bin/wiki.pl?UpdatingTo2.7 >> >> apt source lines for two different Debian Wheezy kernels and uses are >> the same. Shouldn't it be 2.7-rtpreempt ? > > Nope, the wiki page is correct. Both the vanilla kernel and the > rt-preempt kernel use the "uspace" flavor of linuxcnc. > > The uspace flavor runs entirely in userspace, which is where it gets its > name. > > If you run the uspace flavor of linuxcnc on an rt-preempt kernel, you > get reasonable realtime performance. In userspace! Awesome!
I am not sure how to understand the kernel version. uname -a results: 3.4-9-rtai-686-pae #1 SMP PREEMPT Debian 3.4.55-4linuxcnc i686 GNU/Linux You can look at the latency test histogram results I got, look at "base 2.7-uspace" near the end: http://robotech.lt/?p=21 > > If you run the uspace flavor of linuxcnc on a vanilla (non-rt-preempt) > kernel, you get crappy realtime performance, and it behaves like the old > "simulator" flavor. > > > And by the way, there's a new & better place for the "Updating to 2.7" > documentation, here: > > http://linuxcnc.org/docs/2.7/html/getting-started > > See specifically the "Getting LinuxCNC" and "Updating LinuxCNC" sections. > > I'll update the wiki to point there, hold on... Ok done! New documentation and image - this is great! ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=190641631&iu=/4140/ostg.clktrk _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
