i use isolcpu which isolates a cpu-core from the scheduler so it is not used, there is also a command cset --shield that I haven’t got to work yet that is almost as good.
But I can manually put processes in the isolated core. So nothing can stop or interrupt the process execution.
If someone can tell me what could be problematic in this approach it would be useful.
In the example above I was running a heavy soft real time plotter on the other core and it was only a 2 core cpu.
when does unprocessed frames happen?