damonp@teklds.UUCP (Damon Anton Permezel) (09/19/84)
Anyone out there using ULTRIX? I would be interested in hearing of
experiences/impressions, and also getting an idea of how many
sites are using it.
UUCPnet: {decvax,allegra}!tektronix!damonp
CSnet : damonp@tek
ARPAnet: damonp.tek@csnet-relay
US mail: Damon Permezel, Tektronix, Inc.,
: PO Box 500 Del.Sta. 92-823, Beaverton, OR 97077
MaBell : (503) 629-1720tierney@fortune.UUCP (09/21/84)
I have a question about ULTRIX:
(Background) I went to Northeastern U. in Boston,
and we had one VAX running VMS with everything
you can fit into the box (mostly memory and terminal
boards). Near the end of the quarter, it was not
unusual to find > 120 people logged on simultaneously!
I once asked whether UNIX would not be a better OS,
and I received the following answer:
UNIX may be a nice OS, but it is not as efficient
as VMS for the VAX. In other words, I can run
120 users on my VAX under VMS and many fewer under
UNIX.
MY QUESTION:
ULTRIX was developed for VAXen by the VMS wizards at DEC.
So how does the efficiency of VAX/ULTRIX compare to
VAX/VMS?
Anyone care to conjecture?
Charlie Tierney
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USnail: Fortune Systems, 101 Twin Dolphin Drive, Redwood City, California 94065long@ittvax.UUCP (H. Morrow Long) (09/21/84)
> MY QUESTION: > > ULTRIX was developed for VAXen by the VMS wizards at DEC. > So how does the efficiency of VAX/ULTRIX compare to > VAX/VMS? > > Anyone care to conjecture? > > > > Charlie Tierney From what I've heard Ultrix is Berkeley Unix 4.2bsd Vax 11/780 version that has been all DEC'ed out. We haven't received a copy yet so I can't report what (if any) performance enhancements, system tuning utilities or assorted kludges they may have made. Reportedly they have fixed many of the bugs in the Mt. Xinu buglist. H. Morrow Long decvax!ittvax!long W.I.T. Wizard-in-Training
gwyn@brl-tgr.ARPA (Doug Gwyn <gwyn>) (09/22/84)
I hardly think that "ULTRIX was developed for VAXen by the VMS wizards at DEC". Perhaps it was adapted by some of them, but it was developed for the PDP-11 at Bell Laboratories and enhanced primarily for the VAX at U. Cal. at Berkeley. (Yes, I know this is oversimplified..)
mwm@ea.UUCP (09/25/84)
/***** ea:net.unix-wizar / fortune!tierney / 5:33 pm Sep 21, 1984 */ ULTRIX was developed for VAXen by the VMS wizards at DEC. So how does the efficiency of VAX/ULTRIX compare to VAX/VMS? Anyone care to conjecture? Charlie Tierney /* ---------- */ One of the DEC Unix people was by here a few days ago, and we talked about that. Ultrix-32 *is* 4.2BSD, with changes to the error logging code to be compatabile with VMS. Sorry, it wasn't written by the DEC VMS wizards, and isn't much faster than standard Unix. However, I hear that it *is* faster than VMS 4.0. Side note - it appears that the DEC Ultrix-32 project is going to be MORE/bsd (from MtXinu). How much of MtXinu will move with the OS is unkown. Pure Intellect One <mike
lauren@RAND-UNIX.ARPA (09/26/84)
From: Lauren Weinstein <vortex!lauren@RAND-UNIX.ARPA> ULTRIX has nothing to do with VMS. It is a "cleaned-up", enhanced, and supported version of standard Unix systems (such as 4.2bsd). --Lauren--
mark@gymble.UUCP (Mark Weiser) (09/28/84)
We bought Ultrix on our 2 750's delivered this summer because
we had not yet received our 4.2 tapes from Berkeley. Ultrix
came up fine, nice documentation. Since then we got the real
McCoy and switched for reasons of source availability (we had
ordered the source to Ultrix from DEC, but it has yet to come).
The switch did not work very well because vanilla 4.2 uda50
disk controllers have bugs. After fixing these up all was ok.
(At least DEC knows how to talk
to their own devices). Another advantage of Ultrix will
presumably be that field service will know how to interpret
its error messages, which are a little different from vanilla 4.2.
--
Spoken: Mark Weiser ARPA: mark@maryland
CSNet: mark@umcp-cs UUCP: {seismo,allegra}!umcp-cs!markmark@gymble.UUCP (Mark Weiser) (09/28/84)
"ULTRIX was developed for VAXen by the VMS wizards at DEC.
So how does the efficiency of VAX/ULTRIX compare to
VAX/VMS?"
False. Ultrix is just Berkeley 4.2 munged for object only configuration
and better device drivers.
--
Spoken: Mark Weiser ARPA: mark@maryland
CSNet: mark@umcp-cs UUCP: {seismo,allegra}!umcp-cs!mark