When Jailhouse makes sense, and when it doesn’t

[Jiaming]

Jailhouse is the right answer when you need hard real-time behavior on the same SoC as a Linux application, motor control, safety monitoring, deterministic sensor sampling alongside AI inference. The isolation is genuine: the inmate cell’s timing is not affected by Linux scheduler behavior or interrupt storms.

It’s not the right answer if you just need faster interrupt response from Linux. For that, look at CONFIG_PREEMPT_RT or processor affinity.