Linux Plumbers Conference 2022 - "PREEMPT_RT - how not to break it." by Sebastian Siewior, Linutronix

The PREEMPT_RT patch set has only a handful patches left until it can be enabled on the X86  Architecture at the time of writing. The work has not finished once the patches are fully merged.

A new issue is how to not break parts of PREEMPT_RT in future development by making assumption which are not compatible or lead to large latencies.

Another problem is how to address limitations on PREEMPT_RT like the big softirq/ bottom halves lock which can lead to high latencies.

Sep 12, 2022, 10:00 AM at  "Pembroke" (Clayton Hotel on Burlington Road, Dublin.)

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