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From: ford@amix.commodore.com (Mike "Ford" Ditto)
Newsgroups: comp.unix.amiga
Subject: Re: Adding Symmetric Multiprocessing to Amiga UNIX.
Message-ID: <1135@amix.commodore.com>
Date: 15 Feb 91 19:17:07 GMT
References: <8646@gollum.twg.com>
Organization: Commodore-Amiga Unix Development
Lines: 22

david@twg.com (David S. Herron) writes:
> You're right.. converting Unix to multi-processing isn't easy.  There's
> all those references to "u", and all those algorithms that don't lock
> their data structures, etc etc ...

"u" is not haphazardly referenced in SVR4 as it was in previous
versions.  Device driver and filesystem code is now much cleaner,
receiving its parameters by function arguments.  Locking is a bit
better but still doesn't seem suitable for multithreaded use.

Obviously, things like that will change for SVR4/SMP.

BTW, I beleive AT&T says that both R4/ES ("Enhanced Security") and
R4/SMP ("Symmetric MultiProcessing") will be ready for release in
early 1992, and available to developers much sooner than that.

					-=] Ford [=-

"Like a pizza in the rain,		(In Real Life:  Mike Ditto)
 no one wants to take you home."	ford@amix.commodore.com
 - David Byrne, "Loco de Amor"		uunet!cbmvax!ditto
					ford@kenobi.commodore.com