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Re: multitasking vs multiple interpreters

From Ivan Shmakov <ivan@siamics.netREMOVE.invalid>
Newsgroups comp.lang.forth
Subject Re: multitasking vs multiple interpreters
Date 2025-08-09 14:37 +0000
Organization Dbus-free station.
Message-ID <04hvMHZPzRBoG_BT@violet.siamics.net> (permalink)
References <871pq0uppw.fsf@nightsong.com> <nnd$36fa8656$3dede2e2@f9f97ec4bf262c4d> <87wm7ru0y4.fsf@nightsong.com>

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>>>>> On 2025-07-29, Paul Rubin wrote:
>>>>> albert@spenarnc.xs4all.nl writes:

 >> The other situation is that you take advantage of multiple cores
 >> to speed up the calculation.  There you use the fork system call.

 > The idea here is to multitask on an MCU with around 2kB of memory,
 > so no OS.

	That depends on the OS definition in use.  Contiki (say, [1])
	positioned itself as an OS, and it /did/ run on AVR MCUs.
	(Though I only have experience with it on STM32F4 myself.)

[1] http://en.wikipedia.org/wiki/Contiki

 > Just a few tasks to monitor a pushbutton, control a LED, and some
 > similar things.

	My /guess/ is that time-slicing multiple interpreters will
	result in higher "save state / restore state" overhead overall.

	In any case, Contiki's cooperative multitasking / scheduling
	might be worth taking a look at.

	HTH.

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Thread

multitasking vs multiple interpreters Paul Rubin <no.email@nospam.invalid> - 2025-07-28 11:36 -0700
  Re: multitasking vs multiple interpreters albert@spenarnc.xs4all.nl - 2025-07-28 23:09 +0200
    Re: multitasking vs multiple interpreters Paul Rubin <no.email@nospam.invalid> - 2025-07-28 20:32 -0700
      Re: multitasking vs multiple interpreters minforth <minforth@gmx.net> - 2025-07-29 06:03 +0200
      Re: multitasking vs multiple interpreters Ivan Shmakov <ivan@siamics.netREMOVE.invalid> - 2025-08-09 14:37 +0000
  Re: multitasking vs multiple interpreters anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2025-07-29 07:49 +0000
    Re: multitasking vs multiple interpreters albert@spenarnc.xs4all.nl - 2025-07-29 11:06 +0200
    Re: multitasking vs multiple interpreters Paul Rubin <no.email@nospam.invalid> - 2025-07-29 15:06 -0700
    Re: multitasking vs multiple interpreters Buzz McCool <buzz_mccool@yahoo.com> - 2025-08-11 10:12 -0700
      Re: multitasking vs multiple interpreters anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2025-08-11 17:49 +0000
        Re: multitasking vs multiple interpreters albert@spenarnc.xs4all.nl - 2025-08-12 13:14 +0200
          Re: multitasking vs multiple interpreters Paul Rubin <no.email@nospam.invalid> - 2025-08-12 09:45 -0700
            Re: multitasking vs multiple interpreters albert@spenarnc.xs4all.nl - 2025-08-13 11:23 +0200
              Re: multitasking vs multiple interpreters Paul Rubin <no.email@nospam.invalid> - 2025-08-13 09:12 -0700
          Re: multitasking vs multiple interpreters minforth <minforth@gmx.net> - 2025-08-13 13:55 +0200
          Re: multitasking vs multiple interpreters Stephen Pelc <stephen@vfxforth.com> - 2025-08-14 09:43 +0000

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