Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site brl-vgr.ARPA Path: utzoo!linus!vaxine!wjh12!genrad!grkermit!masscomp!clyde!burl!ulysses!mhuxl!houxm!houxz!vax135!floyd!cmcl2!seismo!brl-tgr!brl-vgr!gwyn From: gwyn@brl-vgr.UUCP Newsgroups: net.unix-wizards Subject: Re: UNIX V 11/70 vs VAX HELP ! Message-ID: <3066@brl-vgr.ARPA> Date: Thu, 7-Jun-84 17:46:01 EDT Article-I.D.: brl-vgr.3066 Posted: Thu Jun 7 17:46:01 1984 Date-Received: Wed, 13-Jun-84 05:01:52 EDT References: <544@ihuxa.UUCP> Organization: Ballistics Research Lab Lines: 17 Sorry, I can't readily mail to UUCP sites... The performance of UNIX System V on the supported CPUs is given in the SRD. The PDP-11/70 is shown as having about 55% of the throughput of a VAX-11/780. If you're going to run UNIX System V on a VAX-11/780 you are advised to get a KMC11-B to drive your DZ11s for much improved terminal i/o. Also from the SRD: The PDP-11/70 is "fully supported" but does not have: - flexnames and corresponding object/archive format - job control ("shl", sxt) I have also found that (at least in Release 1) the PDP-11 "f77" is an older version, since the newer version was too big for the PDP-11 (recall that AT&T UNIX does not support user-mode text overlays). Indeed, the main problem with the PDP-11 is its limited (64Kb I + 64Kb D) process address space. It is also supposed to be out of production by DEC.