Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!uw-beaver!uw-entropy!quick!amc-gw!john
From: john@amc-gw.UUCP (John Sambrook)
Newsgroups: comp.os.aos
Subject: Re: AOS/VS -> DG/UX transition
Message-ID: <937@amc-gw.UUCP>
Date: 3 Oct 89 20:58:46 GMT
References: <8758@discus.technion.ac.il>
Reply-To: john@amc-gw.UUCP (John Sambrook)
Organization: Applied Microsystems Corporation, Redmond, WA.
Lines: 50

In article <8758@discus.technion.ac.il> Baruch Cochavy writes:

>        We are now in the process of looking into running DG/UX on our
>old MV/4000 and MV/2000. Can anyone comment on that, or supply some
>performance comparisons, preferably based upon practical experience
>of such an upgrade ?

In a previous position at the University of Washington, I was responsible
for converting from AOS/VS 5.something to DG/UX 1.0 on a DG MV/10000.
Of course, there were a lot of problems, but performance (when the machine
was running :-) wasn't one of them.  It took a few revisions of DG/UX to
get the most serious problems resolved, but when I left the position we
were at revision level 3.11 of DG/UX and the machine was working reasonably
well.

I would also point out that DG/UX is a great development (or at least testing)
environment, if you are developing UNIX applications!  Why is this?  Well, 
you have a couple of things going for you:

    1.  You have a machine that is almost legend within the C / UNIX 
    	community.  If you don't understand how to write clean C code,
    	spend a few years on an MV, and you will soon learn to properly
    	type your pointers, and you will become intimately familiar with
    	the argument types of the various library routines!

    2.  You have an excellent C compiler.  It's well documented, it 
    	works, and it has about every option you could imagine to help
    	you debug bogus code.

    3.  I was excited about the new debugger in DG/UX 4.0, but never 
    	got to use it.  It really looked like a great tool.  I'd be
    	interested in knowing how it worked out.

>        Also, and I realize this is not the best news group to handle
>it, can someone comment on the AViiON, or compare it to VAX11/780 or
>something else in the same range ?

Comparing it to an 11/780 would be rather odd.  Maybe you should compare 
it to something like a Sun Sparcstation or a DEC PMAX.

John Sambrook                             DNS: john@amc.com
Applied Microsystems Corporation	 UUCP: amc-gw!john
Redmond, Washington  98073               Dial: (206) 882-2000 ext. 630

P.S.  Hi Karl.

-- 
John Sambrook                             DNS: john@amc.com
Applied Microsystems Corporation	 UUCP: amc-gw!john
Redmond, Washington  98073               Dial: (206) 882-2000 ext. 630