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Re: RT Kernel

From Jan Panteltje <pNaOnStPeAlMtje@yahoo.com>
Newsgroups comp.sys.raspberry-pi
Subject Re: RT Kernel
Date 2021-01-08 06:55 +0000
Organization Aioe.org NNTP Server
Message-ID <rt8vp8$1r66$1@gioia.aioe.org> (permalink)
References <20210107172620.1601ea0c@devuan> <slrnrvepp3.2qk.jj@iridium.wf32df> <20210107202755.61bf21f8@devuan> <slrnrves41.2qk.jj@iridium.wf32df>

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On a sunny day (Thu, 7 Jan 2021 20:35:13 -0000 (UTC)) it happened Jim Jackson
<jj@franjam.org.uk> wrote in <slrnrves41.2qk.jj@iridium.wf32df>:

>On 2021-01-07, Folderol <general@musically.me.uk> wrote:
>> On Thu, 7 Jan 2021 19:55:15 -0000 (UTC)
>> Jim Jackson <jj@franjam.org.uk> wrote:
>>
>> I don't know that it will make a difference on the Pi, but it certainly does on
>> Intel and AMD processors. Typically I can go from 8mS latency down to 2mS on
>> complex Yoshimi 10-12 Channel performances.
>>
>
>Ok that's certainly worth it. Sorry I can't help re. RT linux kernel and RPI.
>Maybe try the advanced section of the RPI forum? Though I do find that it's not often "advanced".

Linux, RT or not, is not a real time system.
It is a multi-tasker.
I usually design some extra hardware if things need to run fast and continuously.
hardware that includes buffers.
example:
 http://panteltje.com/panteltje/raspberry_pi_dvb-s_transmitter/

Much these days can perhaps be done with an FPGA hat (have not tried that).
Else you will need to do some electronic design, soldering, etc.
In any case you also need to write the software to interface to that,
You need to specify your requirements.

Sometimes a simple PIC micro-controller is all you need to add to get past the task switch interrupt..
But it will need to be programmed too.
 

 

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Thread

RT Kernel Folderol <general@musically.me.uk> - 2021-01-07 17:26 +0000
  Re: RT Kernel Jim Jackson <jj@franjam.org.uk> - 2021-01-07 19:55 +0000
    Re: RT Kernel Folderol <general@musically.me.uk> - 2021-01-07 20:27 +0000
      Re: RT Kernel Jim Jackson <jj@franjam.org.uk> - 2021-01-07 20:35 +0000
        Re: RT Kernel Jan Panteltje <pNaOnStPeAlMtje@yahoo.com> - 2021-01-08 06:55 +0000
          Re: RT Kernel Deloptes <deloptes@gmail.com> - 2021-01-08 09:56 +0100
            Re: RT Kernel Ahem A Rivet's Shot <steveo@eircom.net> - 2021-01-08 09:27 +0000
              Re: RT Kernel Folderol <general@musically.me.uk> - 2021-01-08 11:16 +0000
                Re: RT Kernel Deloptes <deloptes@gmail.com> - 2021-01-08 12:42 +0100
                Re: RT Kernel The Natural Philosopher <tnp@invalid.invalid> - 2021-01-08 13:10 +0000
                Re: RT Kernel Folderol <general@musically.me.uk> - 2021-01-08 16:28 +0000
              Re: RT Kernel Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2021-01-08 18:06 +0000
            Re: RT Kernel nospam.Richard.Falken@f1.n770.z6534.fidonet.org (Richard Falken) - 2021-01-08 10:49 +1300
            Re: RT Kernel Jim Jackson <jj@franjam.org.uk> - 2021-01-08 18:06 +0000
            Re: RT Kernel Scott Alfter <scott@alfter.diespammersdie.us> - 2021-01-08 20:18 +0000
              Re: RT Kernel Deloptes <deloptes@gmail.com> - 2021-01-08 21:36 +0100
                Re: RT Kernel Scott Alfter <scott@alfter.diespammersdie.us> - 2021-01-10 22:28 +0000
              Re: RT Kernel not@telling.you.invalid (Computer Nerd Kev) - 2021-01-08 23:54 +0000
  Re: RT Kernel Martin Gregorie <martin@mydomain.invalid> - 2021-01-07 21:56 +0000
    Re: RT Kernel Folderol <general@musically.me.uk> - 2021-01-07 22:25 +0000
      Re: RT Kernel Martin Gregorie <martin@mydomain.invalid> - 2021-01-07 23:37 +0000
        Re: RT Kernel Folderol <general@musically.me.uk> - 2021-01-08 10:35 +0000
          Re: RT Kernel Martin Gregorie <martin@mydomain.invalid> - 2021-01-08 11:31 +0000
  Re: RT Kernel druck <news@druck.org.uk> - 2021-01-08 20:40 +0000
    Re: RT Kernel Folderol <general@musically.me.uk> - 2021-01-09 09:45 +0000
  Re: RT Kernel not@telling.you.invalid (Computer Nerd Kev) - 2021-01-08 23:38 +0000
    Re: RT Kernel Folderol <general@musically.me.uk> - 2021-01-09 10:05 +0000
      Re: RT Kernel Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2021-01-09 17:16 -0500
  Re: RT Kernel Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2021-01-08 22:54 -0500

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