Thanks for the LWN reference. I think I missed that article. I plan to install the newest kernel in Trixie, then run the rtcqs script ( https://codeberg.org/rtcqs/rtcqs) to see how it looks for audio processing. Based on that, I may still try to install a fully preemptible kernel from source.
Scott Denlinger On Tue, Nov 14, 2023 at 7:00 AM Tixy <t...@yxit.co.uk> wrote: > 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 > >
