Minix vs. QNX Neutrino

[tota]

Hi developers MINIX 3!

What advantage at MINIX? Than minix it is better qnx?
To me interestingly your opinion.
Thanks.

[Roman Ignatov]

QNX -is a commercial Unix-like real-time operating system, aimed
primarily at the embedded systems market. On September 12, 2007, the
source of the QNX kernel was released for non-commercial use.

MINIX 3 - not real-time operating system, but there are a couple of
people who have made a small start.

[Maurizio Lombardi]

The most important thing is that Minix is an open source project with
a permissive license.
By contrast, QNX is proprietary software owned by the QNX Software
Systems, you can not use (or modify) it freely.

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Maurizio Lombardi

[Enlightenment]

I personally think the person was asking about the technical benefits
of MINIX3 vs other O/S, than the obvious cost / license difference.

[tota]

Quite right:)

[Gökhan Özbulak]

There is also an explanation in the "Reorganizing UNIX for Reliability[1]" paper about this. Although QNX's design is known as microkernel based, there are still some functionalities like process management in the kernel space rather than user space. Consequently, a crash in one of these functionalities may lead kernel and system goes down.  

[1] www.cs.vu.nl/~ast/publications/acsac-2006.pdf

[Maurizio Lombardi]

> I personally think the person was asking about the technical benefits
> of MINIX3 vs other O/S, than the obvious cost / license difference.
>

I don't think Minix3 actually has technical benefits over QNX Neutrino.

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Maurizio Lombardi
OpenSolaris 2008.11
on x86_64
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