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Xref: sserve comp.unix.misc:9096 comp.os.linux:54722 comp.os.386bsd.misc:984 Path: sserve!newshost.anu.edu.au!munnari.oz.au!constellation!aardvark.ucs.uoknor.edu!ns1.nodak.edu!netnews.nwnet.net!ogicse!uwm.edu!cs.utexas.edu!uunet!wyvern!taylor.wyvern.com!mark Newsgroups: comp.unix.misc,comp.os.linux,comp.os.386bsd.misc Subject: Re: What are the various PC bassed Unix box OS? Message-ID: <1993Sep13.121546.19533@taylor.uucp> From: mark@taylor.uucp (Mark A. Davis) Date: 13 Sep 93 12:15:46 GMT References: <1993Sep02.184251.23903@engr.engr.uark.edu> <2C8E9252.3016@news.service.uci.edu> <michaelv.747547179@ponderous.cc.iastate.edu> <1993Sep12.235912.32501@unixland.ci.net> <1993Sep13.084852.1164@black.ox.ac.uk> Organization: Lake Taylor Hospital Computer Services Keywords: pc,unix Article-I.D.: taylor.1993Sep13.121546.19533 Lines: 32 mbeattie@black.ox.ac.uk (Malcolm Beattie) writes: >In article <1993Sep12.235912.32501@unixland.ci.net> bill@unixland.ci.net (Bill Heiser) writes: >>In article <michaelv.747547179@ponderous.cc.iastate.edu> michaelv@iastate.edu (Michael L. VanLoon) writes: >>>>>iiitac@swan.pyr (Alan Cox) writes: >>>>>>In article <chmae.747045462@guug.de> chmae@guug.de (Christoph Maethner) writes: >>>>>>>I don't think I will ever need a 486 , I would perfer more RAM. >>>>Wouldn't this, however, be an argument *for* getting a 486? I am just >>>>wondering, as I have heard that UNIX on a 486 should conceivably run >>>>better because the 486's hardware, especially if it has a local bus, >>>No matter how fast the drive and controller, RAM will always be >>>faster. >> >>I ran a Unix SVR3 on a 386/25. I then upgraded the machine to a >>486/33. Overall system performance was *twice* as fast (using the >>same peripherals) with the 486 machine than on the 386. >That's because of the difference in clock speeds. A rule of >thumb is that at a given clock speed a 486 is about 1/3 faster >than a 386, and that performance increases roughly linearly >(very, very roughly) in this range of clock speeds. >Comparing your 386/25 with your 486/33 you can see where the >factor of two comes from. The usual "386 v 486" question >centres on the comparison of a 386/40 with a 486/33. You also forgot that his 386 had no math processor and the 486 does. -- /--------------------------------------------------------------------------\ | Mark A. Davis | Lake Taylor Hospital | Norfolk, VA (804)-461-5001x431 | | Sys.Administrator| Computer Services | mark@taylor.wyvern.com .uucp | \--------------------------------------------------------------------------/