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Groups > comp.sys.raspberry-pi > #25617

Re: RT Kernel

From Charlie Gibbs <cgibbs@kltpzyxm.invalid>
Newsgroups comp.sys.raspberry-pi
Subject Re: RT Kernel
Date 2021-01-08 18:06 +0000
Organization NewsGuy.com
Message-ID <rta6u92bl8@news2.newsguy.com> (permalink)
References (2 earlier) <20210107202755.61bf21f8@devuan> <slrnrves41.2qk.jj@iridium.wf32df> <rt8vp8$1r66$1@gioia.aioe.org> <rt96nd$jp6$1@dont-email.me> <20210108092735.fed723490b874e1e4abf43f8@eircom.net>

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On 2021-01-08, Ahem A Rivet's Shot <steveo@eircom.net> wrote:

> On Fri, 08 Jan 2021 09:56:13 +0100
> Deloptes <deloptes@gmail.com> wrote:
>
>> I know a guy from the mailing lists (Gene Hasket) that is operating
>> some CNC and was complaining about lack of RT in linux. He is using
>> some patched kernel from somewhere - I do not recall the details, but
>> it is really a problem that Linux is not applicable to time sensitive
>> applications.

s/Hasket/Heskett/
He's a regular on the debian-users mailing list.

> 	Problem ? It's a fact and always will be that multi-tasking
> operating systems and real time processing don't go together unless
> the real time demands are very long relative to the processing speed
> (eg. payroll).

Ah, finally, someone else who realizes that payroll is a real-time
application.

> 	Time was we used MS-DOS for burning CDs rather than unix because
> it only took one late write to make a coaster, buffering and faster
> processors means that we can now burn blu-ray discs from a multi-tasking OS
> and almost never make a coaster. That doesn't make unix a real time OS it
> just means that the timescales have shrunk.

I'm still nervous about doing other things while burning a CD.
On the other hand, the only coasters I've produced were due to
hardware problems (usually dust bunnies in the drive).

-- 
/~\  Charlie Gibbs                  |  "Some of you may die,
\ /  <cgibbs@kltpzyxm.invalid>      |  but it's a sacrifice
 X   I'm really at ac.dekanfrus     |  I'm willing to make."
/ \  if you read it the right way.  |    -- Lord Farquaad (Shrek)

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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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