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From: slos <new.stephane.los@gmail.com>
Newsgroups: comp.lang.ada
Subject: Re: Ada and linux real time
Date: Thu, 8 Mar 2012 13:45:48 -0800 (PST)
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Date: 2012-03-08T13:45:48-08:00
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On 8 mar, 13:04, Simon Clubley <clubley@remove_me.eisner.decus.org-
Earth.UFP> wrote:
> On 2012-03-07, Eilie <Ei...@what-are-you-looking.for> wrote:
>
> > On 2012-03-07, Dmitry A. Kazakov <mail...@dmitry-kazakov.de> wrote:
> >> On Wed, 7 Mar 2012 04:10:14 -0800 (PST), slos wrote:
>
> >> I cannot tell for Linux, because I didn't use it for real-time purpose=
s
> >> yet. Ideally it should derive the system time from the TSC. However
> >> scheduling would likely limited when controlled by timer interrupts. T=
he
> >> minimal waiting time is then determined by the timer's period. You sho=
uld
> >> look for this kernel setting if you want go below 10ms, or what the ac=
tual
> >> limit is.
>
> > And what OS do you use for real-time purposes?
>
> Look at RTEMS. It has Ada support built in.
>
> I recommend you read through the online documentation first to decide if
> it's suitable for you.
>
> Start athttp://www.rtems.com/
>
> Simon.
>
> --
> Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP
> Microsoft: Bringing you 1980s technology to a 21st century world

Hi,

Thank you for your answers.

I know RTEMS and MarteOS and they are great projects.

But I want to use the stuff those guys have put in the kernel main
line :
https://www.osadl.org/HOWTOs.howtos.0.html

It may not be the most accurate or performance may be lower than with
other solutions but I think it would match my needs for now.
Of course, if I can run Ada and get something "real time".
Otherwise, my project is quite useless.

BR
St=E9phane