Hmm,<br>So this is all about my kernel:<br>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<br><br>Is it possible to patch it in order to make it a RT kernel ?<br>
<br><br><div class="gmail_quote">On Tue, Mar 18, 2008 at 8:59 PM, Mark Knecht <<a href="mailto:markknecht@gmail.com">markknecht@gmail.com</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class="Ih2E3d">On Tue, Mar 18, 2008 at 11:41 AM, Arda Eden <<a href="mailto:ardaeden@gmail.com">ardaeden@gmail.com</a>> wrote:<br>
> So what does a realtime kernel change ? Makes my latency 1 ms ?<br>
><br>
><br>
><br>
><br>
> On Tue, Mar 18, 2008 at 8:38 PM, Arnold Krille <<a href="mailto:arnold@arnoldarts.de">arnold@arnoldarts.de</a>> wrote:<br>
><br>
> ><br>
> ><br>
> ><br>
> > Am Dienstag, 18. März 2008 schrieb Mark Knecht:<br>
> ><br>
> > > On Tue, Mar 18, 2008 at 11:25 AM, Arda Eden <<a href="mailto:ardaeden@gmail.com">ardaeden@gmail.com</a>> wrote:<br>
> > > > So is it really necessary to have a realtime kernel in order to use<br>
> linux<br>
> > > > audio applications without any latencies or xruns ?<br>
> > > It is not possible to use ANY kernel with NO latencies. EVERY kernel<br>
> > > has latencies. The question is how low do you want the latencies to<br>
> > > be? If you can exist with 50mS or higher you might get away with a<br>
> > > standard kernel. If you want to run with 1.2mS latency then you will<br>
> > > absolutely have to have a real-time enabled kernel.<br>
> ><br>
> > Still it has to be noted that you can achieve 5ms latency without a<br>
> > RT-kernel... Even with an el-cheapo builtin soundcard...<br>
> ><br>
> > Arnold<br>
<br>
</div>Absolutely. The most recent kernels are often quite good. However I<br>
would say that the difference between a standard kernel running 5mS<br>
and a RT kernel running 5mS is that the RT kernel is far more likely<br>
to meet the 5mS requirement under heavy system loads while the<br>
standard kernel may, at times, give a bit too much time to non-rt<br>
threads and not get back to your audio thread as fast as someone might<br>
want.<br>
<br>
If you want the highest reliability means of meeting your RT<br>
requirements all the time then use the RT kernel. If you are just<br>
doing home recording and can accept an occasional xrun (i.e. - a<br>
glitch in the recorded data) then stick with the standard kernel for<br>
as long as it works for you.<br>
<br>
Just my view,<br>
<font color="#888888">Mark<br>
</font></blockquote></div><br><br clear="all"><br>-- <br>Arda EDEN<br>Cumhuriyet University<br>Faculty of Fine Arts<br>Department of Music Technology<br>Sivas/TURKEY