Real time for what?

Posted Nov 21, 2012 9:40 UTC (Wed) by dlang (guest, #313)
In reply to: Real time for what? by mb
Parent article: LCE: Realtime, present and future

doing so and posting benchamrk numbers showing latency doesn't matter, what would matter is if there is anything showing that this makes a difference in the part being machined.

That page was big on the 'how to' but utterly lacking in the 'why go to this effort'

Real time for what?

Posted Nov 22, 2012 13:35 UTC (Thu) by mb (subscriber, #50428) [Link]

> doing so and posting benchamrk numbers showing latency doesn't matter

Ehm what?

> what would matter is if there is anything showing that this makes a difference in the part being machined.

If it would make a difference to the machined parts, either the previous RTAI based implementation or the new Linux-RT-preempt based implementation would be seriously broken.

> That page was big on the 'how to' but utterly lacking in the 'why go to this effort'

We do this, because it simplifies the software a lot and gets rid of all those ugly RTAI kernel modules.