Re: a joint letter on low latency and Linux

Erik Andersen (andersen@codepoet.org)
Thu, 29 Jun 2000 12:44:52 -0600

On Thu Jun 29, 2000 at 08:41:48AM -0700, Larry McVoy wrote:
>
> My advice, heeded or not, is to just say no. We have an excellent answer
> for realtime, it's called RT Linux. Go use it - it's better than any
> other answer.

Except for RTAI, I suspect, since

a) The kernel patch is much smaller and elegant, therefore less intrusive
and easier to maintain.

b) RTAI now has a feature called LXRT hard real-time (in it's early days)
that allows the use of hard real-time from user-space programs (thus has
the potential to use the process MMU protection). Note when a thread is in
hard real-time mode, it still may not access Linux systems calls.

http://www.aero.polimi.it/projects/rtai/

-Erik

--
Erik B. Andersen   Web:    http://www.xmission.com/~andersen/ 
                   email:  andersee@debian.org
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