On Mon, 2023-11-13 at 20:45 +0100, Gilles Mocellin wrote: > > On Sun, Nov 12, 2023 at 10:04 AM Scott Denlinger > > <scottdenlinge...@gmail.com> > > wrote: > > > Does anyone know why there are no stock realtime kernels in trixie/sid? I > > > currently have 'linux-image-6.5.0-1-rt-amd64-unsigned' installed, but I > > > don't see any newer RT kernels available. > > > > > > Scott Denlinger > > Hello, I also was looking for it, but I've seen that the standard kernel > seems > to have some preemptive patch (dynamic ?) : > > So I think the kernel packagers think it's sufficient ?
Quoting a recent article from LWN [1] PREEMPT_DYNAMIC, was added to the 5.12 kernel by Michal Hocko in 2021. It allows the preemption choice to be deferred until boot time, where any of the modes except PREEMPT_RT can be selected by the preempt= command-line parameter. PREEMPT_DYNAMIC allows distributors to ship a single kernel while letting users pick the preemption mode that works best for their workload. So if you specificity need a real-time kernel this won't give it to you. [1] https://lwn.net/Articles/944686/ -- Tixy
