Thanks @Tamas_Papp!
I would like to test whether Julia is suitable to deal with attitude control in a satellite. The Pi seems to be the most compact device that I can use to run Julia decently.
The workload is minimal. It is a single Julia process gathering measurements at 10 Hz and changing output signals at 1 Hz. I want to see the problems related to this approach. Things like real-time performance, latency, RAM usage, etc.
The precompilation can be done at startup in a stage I call “warmup”. After that, I will not have any problems.
I also can use PackageCompiler to create an executable, but I want to avoid that. My goal is to have the very same code I use in the simulator embedded into the satellite computer.
It is a big project, but it seems very fun 
if anyone had experience with a similar project and want to share to me, I will appreciate!