Re: Why is Linux not RTOS?

["sandeep lahane" <sandeep.lahane@gmail.com>]

On 4/5/07, Raseel Bhagat <raseelbhagat@gmail.com> wrote:
> Hi Sandeep,
>
> On 4/5/07, sandeep lahane <sandeep.lahane@gmail.com> wrote:
>
> >They have a paravirtualization based approach using which
> > guest OSes like RTOS or other rich OSes can be run simultaneously on
> > an embedded platform. These guest OSes can communicate using inter OS
> > communication mechanisms. They are partitioning resources which can be
> > partitioned like system RAM and resources like CPU, MMU and interrupt
> > controller are virtualized since they can't be partitioned. So
> > basically, what they are doing is almost totally irrelevant with this
> > question, since they are not trying to make Linux a RTOS, rather they
> > are making Linux and other guest OSes co-exist with RTOSes
> > simultaneously. Please CMIIW.
> >
>
> I completely concur with you. And it makes lot of sense too.
> For example RTLinux (Real time Linux) from FSMLabs is another such approach.
> They have a micro-kernel , which is basically a core real tie\me
> kernel, which sits on top of the vanilla linux kernel. This way, all
> the real time tasks are handled by the Microkernel during whcih time
> Linux kernel runs as an idle process. Only when no RT tasks are
> present, the vanilla Linux kernel executes all the non-RT tasks.
> This way, RT behaviour is accomplished without having to modify the
> core Linux kernel.
>
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>

Yes, may be the poster is looking for RTLinux kind of thing.
-- 

Regards,
Sandeep.
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