RT Linux in Safety-Critical Systems: The Potential and the Challenges

on YouTube ↗40m

" summary

Shows how Real Time Linux (mainline + Preempt RT) behaves under real workloads by running cyclic and deadline tests (one-hour runs, sometimes with six concurrent kernel builds) and comparing Preempt‑RT vs vanilla kernels. Measures focus on missed-deadline counts, latency and scheduler/VM stats (allocation stalls, compaction and page‑migration failures, nr_mlocked pages). Uses RT‑tests, recommends mlock'ing working sets, examines CPU‑affinity/CPU‑sets and RT throttling, and enables OS and hardware noise tracer to separate firmware/hardware noise from OS noise.

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" chapters (5)

1. 0:00Start
2. 5:29Methodology
3. 11:04Resource management
4. 21:43Understand your workload
5. 31:42Deadline scheduling server - in progress

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