How to set process priority

Nerves Forum Nerves Questions / Help
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Hi,

Got a problem with priorities within nerves bundle.

I have an erlang port that needs to run with a high priority. It’s archived with sched_setscheduler.

On the raspbian when I run the application with sudo everything was fine.

The problem is with nerves bundle. It looks like priority won’t change.

What can I do about it?

Thanks for help.

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The Nerves systems for the Raspberry Pis derive their configuration from Raspbian and I didn’t see anything offhand that would prevent sched_setscheduler with SCHED_RR or SCHED_FIFO from working (assuming that’s what you’re doing). Could you submit an issue against nerves_system_rpi3 or whichever system your having trouble with. If you could post a simple example that would let us reproduce the issue, that would be very helpful.

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It turns out that everything works great. I was looking at the wrong numbers from the /proc fs.

Thanks for help!