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 <
tixy@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 <scottdenlinger94@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
<div dir="ltr"><div dir="ltr">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 (<a href="
https://codeberg.org/rtcqs/rtcqs">https://codeberg.org/rtcqs/rtcqs</a>) to see
how it looks for audio processing. Based on that, I may still try to install a fully preemptible kernel from source.</div><div dir="ltr"><br clear="all"><div><div dir="ltr" class="gmail_signature">Scott Denlinger<br></div></div><br></div><br><div class="
gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Nov 14, 2023 at 7:00 AM Tixy <<a href="mailto:
tixy@yxit.co.uk" target="_blank">
tixy@yxit.co.uk</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:
1px solid rgb(204,204,204);padding-left:1ex">On Mon, 2023-11-13 at 20:45 +0100, Gilles Mocellin wrote:<br>
> > On Sun, Nov 12, 2023 at 10:04 AM Scott Denlinger<br>
> > <<a href="mailto:
scottdenlinger94@gmail.com" target="_blank">
scottdenlinger94@gmail.com</a>><br>
> > wrote:<br>
> > > Does anyone know why there are no stock realtime kernels in trixie/sid? I<br>
> > > currently have 'linux-image-6.5.0-1-rt-amd64-unsigned' installed, but I<br>
> > > don't see any newer RT kernels available.<br>
> > > <br>
> > > Scott Denlinger<br>
> <br>
> Hello, I also was looking for it, but I've seen that the standard kernel seems <br>
> to have some preemptive patch (dynamic ?) :<br>
> <br>
> So I think the kernel packagers think it's sufficient ?<br>
Quoting a recent article from LWN [1]<br>
PREEMPT_DYNAMIC, was added to the 5.12 kernel by Michal Hocko in<br>
2021. It allows the preemption choice to be deferred until boot<br>
time, where any of the modes except PREEMPT_RT can be selected by<br>
the preempt= command-line parameter. PREEMPT_DYNAMIC allows<br>
distributors to ship a single kernel while letting users pick the<br>
preemption mode that works best for their workload. <br>
So if you specificity need a real-time kernel this won't give it to<br> you.<br>
[1] <a href="
https://lwn.net/Articles/944686/" rel="noreferrer" target="_blank">
https://lwn.net/Articles/944686/</a><br>
-- <br>
Tixy<br>
</blockquote></div>
</div>
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