Hello Steven, Yocto does support switching kernels and configurations, so yes Yocto does "support" it.
However, providing a well-tested PREEMPT_RT kernel might be more an architectural meta layer topic. We have been using the Intel provided PREEMPT_RT kernel for x86 with good success in a system with hard real-time requirements. In the end we chose full task isolation approach, where one task runs in user-space task isolation, reducing latencies even further than what PREEMPT_RT can provide, as we did not need kernel services in our main processing loop (after setup). Regards, Leon. On Wed, May 19, 2021 at 12:53 PM Monsees, Steven C (US) via lists.yoctoproject.org <[email protected]> wrote: > > > Recently I heard somewhere that newer versions of the Linux Kernel will > include the PREEMPT_RT patches, and configuration settings would be used to > set how the Linux would operate in a specific system. > > > > Does Yocto support “PREEMPT_RT”, and what versions of Yocto have this > option ? > > > > Is there documentation on this feature/option ? > > > > Thanks, > > Steve > > > > > >
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