Preempt-RT kernel aceptable latency

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27 Feb 2016 22:24 #70733 by jtc
with LMDE2 mate and a mixture off installing the kernel with TJ's iso and linuxcnc with the online instructions for debian jessie, I manage to put all working (only in the run in place version need the rtai-modules-3.18.13.rt10mah+ that i can't find, but this is for another topic)

running the latency test and with the kernel parameters that sprintertrd told, that is my worst latency:





not in the 3k range, but i'm happy with that, and the graphics on the pc runs ok, with mint 17.2 I had poor performance...

now only have to find a way to install a run in place version, or at least linuxcnc-dev to be able to compile hal components...


João
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27 Feb 2016 22:53 #70734 by jtc
wrong package, the correct is linuxcnc-uspace-dev


problems solved :laugh:

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02 Mar 2016 22:39 #70934 by jtc
after some issues with programs installation (teamviwer and wine) I decided to install the 32bit version, and I get even better latency results:


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