Date: Wed, 1 May 1996 21:40:33 -0400 (EDT) From: Chuck Robey <chuckr@Glue.umd.edu> To: "Jonathan M. Bresler" <jmb@freefall.freebsd.org> Cc: Luigi Rizzo <luigi@labinfo.iet.unipi.it>, terry@lambert.org, msmith@atrad.adelaide.edu.au, koshy@india.hp.com, hackers@FreeBSD.org, current@FreeBSD.org Subject: Re: lmbench IDE anomaly Message-ID: <Pine.OSF.3.91.960501213802.8100C-100000@gilligan.eng.umd.edu> In-Reply-To: <199605012235.PAA25809@freefall.freebsd.org>
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On Wed, 1 May 1996, Jonathan M. Bresler wrote: > there is not a debate. > > my 486dx2-66 with 16MB and scsi drives will perform a > "make world" faster than several 586-75's with 16+MB and > *IDE* drives. a 586-90, assuming long integer data set of > 100kB, is over twice as fast as my cpu. but the ide drives > slow the compiles horribly. ( use Hint to get the cpu computation > speeds http://www.scl.ameslab.gov/scl/HINT/HINT.html) > > now maybe its the driver, maybe its the IDE drives themselves. > i aint re-writing the ide driver, so i dont care (at this point). > > dare, jis eyent naw dabayt. Jonathan, I was looking at the new Tyan MB's, they say that they use IDE bus mastering, and claim a major speed increase. I am not sure (I am a SCSI bigot myself) but maybe yours claims of SCSI dominanace over IDE won't be so automatically true shortly. ========================================================================== Chuck Robey chuckr@eng.umd.edu, I run FreeBSD-current on n3lxx + Journey2 Three Accounts for the Super-users in the sky, Seven for the Operators in their halls of fame, Nine for Ordinary Users doomed to crie, One for the Illegal Cracker with his evil game In the Domains of Internet where the data lie. One Account to rule them all, One Account to watch them, One Account to make them all and in the network bind them.
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