From owner-freebsd-hackers Wed Jan 14 12:36:31 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id MAA20670 for hackers-outgoing; Wed, 14 Jan 1998 12:36:31 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from iafnl.es.iaf.nl (uucp@[195.108.17.20]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id MAA20638 for ; Wed, 14 Jan 1998 12:36:20 -0800 (PST) (envelope-from wilko@yedi.iaf.nl) Received: by iafnl.es.iaf.nl with UUCP id AA23579 (5.67b/IDA-1.5 for freebsd-hackers@FreeBSD.ORG); Wed, 14 Jan 1998 21:36:05 +0100 Received: (from wilko@localhost) by yedi.iaf.nl (8.8.7/8.6.12) id VAA01990; Wed, 14 Jan 1998 21:14:08 +0100 (MET) From: Wilko Bulte Message-Id: <199801142014.VAA01990@yedi.iaf.nl> Subject: Re: Any good comparison of Linux/FreeBSD/NetBSD/OpenBSD/Hurd? In-Reply-To: <6373.884772923@verdi.nethelp.no> from "sthaug@nethelp.no" at "Jan 14, 98 11:15:23 am" To: sthaug@nethelp.no Date: Wed, 14 Jan 1998 21:14:08 +0100 (MET) Cc: hasty@rah.star-gate.com, freebsd-hackers@FreeBSD.ORG X-Organisation: Private FreeBSD site - Arnhem, The Netherlands X-Pgp-Info: PGP public key at 'finger wilko@freefall.freebsd.org' X-Mailer: ELM [version 2.4ME+ PL32 (25)] Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk As sthaug@nethelp.no wrote... > >From <34BC2FA5.E334B191@star-gate.com>: [EIDE versus SCSI single stream dd figures] [snip] > > So when reading through the file system the performance depends *much* > more on block size for the EIDE drive - I don't know why. But given > the right block size, *this* particular EIDE disk seems to be always > somewhat faster than the corresponding SCSI disk. EIDE, being a much more simpler protocol at the interface level than SCSI, has less overhead. SCSI becomes advantagous in bigger systems, with lots of I/O going on, where things like on-device queueing etc become effective. > Steinar Haug, Nethelp consulting, sthaug@nethelp.no _ ______________________________________________________________________ | / o / / _ Bulte email: wilko @ yedi.iaf.nl http://www.tcja.nl/~wilko |/|/ / / /( (_) Arnhem, The Netherlands - Do, or do not. There is no 'try' --------------- Support your local daemons: run [Free,Net,Open]BSD Unix --