Post Syndicated from original https://lwn.net/Articles/923366/

Canonical has announced
the general availability of a realtime variant of its distribution.

Based on the 5.15 version of the Linux kernel, Ubuntu 22.04 LTS
integrates the out-of-tree PREEMPT_RT patches for x86 and Arm
architectures. The PREEMPT_RT patchset reduces the kernel latencies
as required by the most exacting workloads, helping to ensure
time-predictable task execution. Meeting stringent determinism
requirements and upper-bounding execution time, Ubuntu with
PREEMPT_RT makes the kernel more preemptive than mainline Linux.