BoF: Realtime Linux
Talkat Embedded Linux Conference @ Open Source Summit North America 2022 · on Friday, 2022-06-24· at 11:10· Griffin Hall (Level 2), JW Marriott Austin, 110 E 2nd Street Austin, TX 78701·
summary
Preempt RT history and status are concrete: the patch set shrinks from ~350 to 49 patches (RC1) as many pieces land upstream, but the preempt RT config is present yet no architecture enables it; notable upstream contributions include the mutex code introduced by RT. Practical tooling and results appear: QEMU guests with CPU isolation hit latencies QEMU <100 μs and noise around 10–20 μs using tuned profiles, and analysis tooling like RTLA and Elisa workstreams target certification and deadline verification.
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chapters (5)
- 0:00Start
- 5:18Road Map
- 5:30When Is the Real-Time Patch Going into the Kernel
- 5:40Mutex
- 32:58What Kind of Design Tools Do You Use To Plan the Timings Other than Trial and Error
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