18 Mar
2008
18 Mar
'08
4:41 p.m.
I'm a PARDUS (a Turkish GNU/Linux distro) user so that the latest kernel
provided by my distro developers is 2.6.18.8-86. I can't know why they don't
complile a new one but i think that it's about the stability of most
applications provided by thet distro.
Which distro of Linux is most suitable for most linux audio applications ?
On Tue, Mar 18, 2008 at 9:36 PM, Mark Knecht <markknecht(a)gmail.com> wrote:
That kernel is getting pretty old. I'm running
2.6.24-rt1 here. you
might want to check out the RT-Wiki or some of the sites for using RT
kernels with audio apps.
http://rt.wiki.kernel.org/index.php/Main_Page
The above link gives instructions for patching a kernel to get to an RT
kernel.
Hope this helps,
Mark
On Tue, Mar 18, 2008 at 12:02 PM, Arda Eden <ardaeden(a)gmail.com> wrote:
to
--
Arda EDEN
Cumhuriyet University
Faculty of Fine Arts
Department of Music Technology
Sivas/TURKEY
--
Arda EDEN
Cumhuriyet University
Faculty of Fine Arts
Department of Music Technology
Sivas/TURKEY
Hmm,
So this is all about my kernel:
Linux melinda 2.6.18.8-86 #2 SMP Mon Feb 11 00:50:59 EET 2008 i686
mobile
AMD Athlon(tm) XP-M 2200+ GNU/Linux
Is it possible to patch it in order to make it a RT kernel ?
On Tue, Mar 18, 2008 at 8:59 PM, Mark Knecht <markknecht(a)gmail.com>
wrote:
>
> On Tue, Mar 18, 2008 at 11:41 AM, Arda Eden <ardaeden(a)gmail.com>
wrote:
> So
what does a realtime kernel change ? Makes my latency 1 ms ?
>
>
>
>
> On Tue, Mar 18, 2008 at 8:38 PM, Arnold Krille <arnold(a)arnoldarts.de
wrote:
>
> >
> >
> >
> > Am Dienstag, 18. März 2008 schrieb Mark Knecht:
> >
> > > On Tue, Mar 18, 2008 at 11:25 AM, Arda Eden <ardaeden(a)gmail.com>
wrote:
> > > > > So is it really necessary to have a realtime kernel in order
use
> > linux
> > > > > audio applications without any latencies or xruns ?
> > > > It is not possible to use ANY kernel with NO latencies. EVERY
kernel
> > > > has latencies. The question
is how low do you want the latencies
to
> > > > be? If you can exist with
50mS or higher you might get away with
a
> > > > standard kernel. If you want
to run with 1.2mS latency then you
will
> > > > absolutely have to have a
real-time enabled kernel.
> > >
> > > Still it has to be noted that you can achieve 5ms latency without
a
> RT-kernel... Even with an el-cheapo builtin
soundcard...
>
> Arnold
Absolutely. The most recent kernels are often quite good. However I
would say that the difference between a standard kernel running 5mS
and a RT kernel running 5mS is that the RT kernel is far more likely
to meet the 5mS requirement under heavy system loads while the
standard kernel may, at times, give a bit too much time to non-rt
threads and not get back to your audio thread as fast as someone might
want.
If you want the highest reliability means of meeting your RT
requirements all the time then use the RT kernel. If you are just
doing home recording and can accept an occasional xrun (i.e. - a
glitch in the recorded data) then stick with the standard kernel for
as long as it works for you.
Just my view,
Mark