Sep 12 – 14, 2022
Europe/Dublin timezone

PREEMPT_RT - how not to break it.

Sep 12, 2022, 10:00 AM
"Lansdowne" (Clayton Hotel on Burlington Road)


Clayton Hotel on Burlington Road

LPC Refereed Track LPC Refereed Track


Sebastian Siewior


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.

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Primary author

Sebastian Siewior

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