While working at Savoir-faire Linux (SFL) in Montreal, I was commissioned to perform some Linux experimentation on an old SBC, using Buildroot, the PREEMPT-RT kernel build option, and FTrace. The first two articles have been posted on SFL’s web site – part 1 and part 2.
Although the work dried up and they let me go, I still believe in the folks at SFL and their work.
A new article was recently posted on Hackaday which discusses Real-Time OS basics, I recommend it for an interesting, short, read.