From owner-freebsd-hackers Wed May 23 2:55:27 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from newsguy.com (smtp.newsguy.com [209.155.56.71]) by hub.freebsd.org (Postfix) with ESMTP id 1491D37B422 for ; Wed, 23 May 2001 02:55:23 -0700 (PDT) (envelope-from dcs@newsguy.com) Received: from newsguy.com (ppp185-bsace7001.telebrasilia.net.br [200.181.80.185]) by newsguy.com (8.11.0/8.9.1) with ESMTP id f4N9r5F23673; Wed, 23 May 2001 02:53:05 -0700 (PDT) Message-ID: <3B0B88A1.BFB8D073@newsguy.com> Date: Wed, 23 May 2001 06:53:37 -0300 From: "Daniel C. Sobral" X-Mailer: Mozilla 4.77 [en] (Win98; U) X-Accept-Language: en,pt-BR,pt,en-GB,en-US,ja MIME-Version: 1.0 To: Shannon Hendrix Cc: Jason Andresen , "Albert D. Cahalan" , ccf@master.ndi.net, gordont@bluemtn.net, jkh@osd.bsdi.com, freebsd-hackers@FreeBSD.ORG Subject: Re: technical comparison References: <200105221816.f4MIGK1171051@saturn.cs.uml.edu> <3B0AB4B1.78A0FB0A@mitre.org> <20010522212029.D2734@widomaker.com> <3B0B187D.47C98452@newsguy.com> <20010522223120.C5012@widomaker.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Shannon Hendrix wrote: > > > And just to get things worse... :-) the test must be made on the *same* > > slice. If you configure two different slices, the one on the outer > > tracks will be faster. > > I cannot verify that with my drive, but my largest is 18GB so maybe > the difference is not as pronounced as on some newer drives like those > (currently) monster 70GB drives. It should be measurable. On one hand, more sectors per track, same time to read a single track = more bytes read per second. On the other hand, more sectors per track, more bytes per track, less tracks per same size, less track seek needed. -- Daniel C. Sobral (8-DCS) dcs@newsguy.com dcs@freebsd.org capo@the.secret.bsdconspiracy.net wow regex humor... I'm a geek To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message