From owner-freebsd-chat Fri May 29 05:39:38 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id FAA19463 for freebsd-chat-outgoing; Fri, 29 May 1998 05:39:38 -0700 (PDT) (envelope-from owner-freebsd-chat@FreeBSD.ORG) Received: from ifi.uio.no (0@ifi.uio.no [129.240.64.2]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id FAA19390 for ; Fri, 29 May 1998 05:39:28 -0700 (PDT) (envelope-from dag-erli@ifi.uio.no) Received: from hrotti.ifi.uio.no (2602@hrotti.ifi.uio.no [129.240.64.15]) by ifi.uio.no (8.8.8/8.8.7/ifi0.2) with ESMTP id OAA09764; Fri, 29 May 1998 14:39:24 +0200 (MET DST) Received: (from dag-erli@localhost) by hrotti.ifi.uio.no ; Fri, 29 May 1998 14:39:24 +0200 (MET DST) Mime-Version: 1.0 To: Ollivier Robert Cc: chat@FreeBSD.ORG Subject: Re: Compatibility with Ultra IDE drives? References: <19980528102719.D342@freebie.lemis.com> <19980528214824.A12555@keltia.freenix.fr> Organization: University of Oslo, Department of Informatics X-url: http://www.stud.ifi.uio.no/~dag-erli/ X-Stop-Spam: http://www.cauce.org From: dag-erli@ifi.uio.no (Dag-Erling Coidan =?iso-8859-1?Q?Sm=F8rgrav?= ) Date: 29 May 1998 14:39:23 +0200 In-Reply-To: Ollivier Robert's message of "Thu, 28 May 1998 21:48:24 +0200" Message-ID: Lines: 15 X-Mailer: Gnus v5.5/Emacs 19.34 Sender: owner-freebsd-chat@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Ollivier Robert writes: > You can get 11 or 12 MB/s from a modern drive (maybe a bit more with 10k > rpms but they're not available to IDE) so having an IDE interface at 33 > MB/s is useless IMO. Not so. Considering that most modern disks (at least most modern midrange to highend disks) have 256 kB or 512 kB caches, any application which writes data in short bursts (short enough to fit in the cache) is going to benefit from this. 'make buildworld' comes to mind; although the overall output is probably not enough to swamp the disk, most of it happens in small bursts of a couple of tens of kilobytes. -- Noone else has a .sig like this one. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message