Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/18/84; site wdl1.UUCP
Path: utzoo!linus!philabs!cmcl2!seismo!harvard!talcott!panda!genrad!decvax!decwrl!greipa!twg!pesnta!hplabs!hpda!fortune!wdl1!sam
From: sam@wdl1.UUCP (Sam Kimery)
Newsgroups: net.unix-wizards
Subject: Re: Is ULTRIX-11 really slow?
Message-ID: <392@wdl1.UUCP>
Date: Fri, 3-May-85 00:46:06 EDT
Article-I.D.: wdl1.392
Posted: Fri May  3 00:46:06 1985
Date-Received: Sun, 12-May-85 00:36:03 EDT
References: <821@unmvax.UUCP>
Distribution: net
Organization: Ford Aerospace, Western Development Laboratories
Lines: 15

> A friend recently brought up ultrix-11 on a microPDP11 with
> an 11/73 processor.  He claims that with 2 users running the
> system is really slow.  DEC support told him that ultrix-11
> has NO BUFFERING on terminal I/O (that is, characters are
> all output as they are sent to the driver).  And that there
> is no buffering in the usual stdio routines.
> 

Is the system running a combination of DZ and DH muxes?  DEC tech.
support claims that the two together will bring the 73 and the micro 11
to its knees.  I know for a fact that the 73 is a stiff processor.
I used to run on a 73 with 20 (my own mod. unsupported by DEC) users, and
had better response than the 70 that I am running on now.

				Sam