From owner-freebsd-hackers Thu May 2 11:48:57 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id LAA16570 for hackers-outgoing; Thu, 2 May 1996 11:48:57 -0700 (PDT) Received: (from jmb@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id LAA16564 Thu, 2 May 1996 11:48:55 -0700 (PDT) From: "Jonathan M. Bresler" Message-Id: <199605021848.LAA16564@freefall.freebsd.org> Subject: Re: lmbench IDE anomaly To: chuckr@Glue.umd.edu (Chuck Robey) Date: Thu, 2 May 1996 11:48:55 -0700 (PDT) Cc: luigi@labinfo.iet.unipi.it, terry@lambert.org, msmith@atrad.adelaide.edu.au, koshy@india.hp.com, hackers@FreeBSD.org, current@FreeBSD.org In-Reply-To: from "Chuck Robey" at May 1, 96 09:40:33 pm X-Mailer: ELM [version 2.4 PL24] Content-Type: text Sender: owner-hackers@FreeBSD.org X-Loop: FreeBSD.org Precedence: bulk Chuck Robey wrote: > > 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 ttp://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. cool. that would be great. losts of people dont want scsi for one reason or another, so if ide gets faster that all for the better ;) anyone got any "/usr/bin/time make world" restuls for one of these boards? -- Jonathan M. Bresler FreeBSD Postmaster jmb@FreeBSD.ORG FreeBSD--4.4BSD Unix for PC clones, source included. http://www.freebsd.org/