Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site unmvax.UUCP Path: utzoo!watmath!clyde!burl!mgnetp!ihnp4!houxm!houxz!vax135!floyd!cmcl2!lanl-a!unm-cvax!unmvax!mcdermot From: mcdermot@unmvax.UUCP Newsgroups: net.unix Subject: Re: How do Unix and VMS compare? Message-ID: <346@unmvax.UUCP> Date: Thu, 14-Jun-84 12:15:37 EDT Article-I.D.: unmvax.346 Posted: Thu Jun 14 12:15:37 1984 Date-Received: Sat, 16-Jun-84 03:49:18 EDT Organization: Univ. of New Mexico, Albuquerque Lines: 32 One question Sean Casey asked about Unix vs. VMS was speed of VMS FORTRAN against Unix C. I did just such a comparison some time ago comparing machines with 10 users each (the unix was 4.2BSD) and I found little difference in run time of compute oriented jobs. I/O, however, is quite a different story: I ran these little programs and found the C to be about 10 times faster than the FORTRAN! This just points out how poor FORTRAN's I/O system is, though, and was primarily used to convince some friends to get a unix machine (they do a lot of I/O so this was really important). program iobench do 111 i=1,65000 write(6,61)'aaaa' 61 format(a4) 111 continue end main(){ register int i; for(i=1;i<=65000;i++) printf("%s\n","aaaa"); } Hope this helps, john -- John McDermott {gatech|ucbvax|convex}!unmvax!mcdermot Univ of NM W (505) 277-4650 Albuquerque, NM 87131 H (505) 255-7796