From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Wedgwood Subject: Re: impact of 4k sector size on the IO & FS stack Date: Mon, 12 Mar 2007 23:34:23 -0700 Message-ID: <20070313063422.GA3801@tuatara.stupidest.org> References: <45F48809.2060908@emc.com> <20070312000253.20eab1a3@lxorguk.ukuu.org.uk> <45F4A268.3000405@garzik.org> <20070312122424.18ed86ce@lxorguk.ukuu.org.uk> <45F56318.9030505@garzik.org> <20070313051144.GI5266@schatzie.adilger.int> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii To: Jeff Garzik , Alan Cox , Ric Wheeler , linux-scsi , linux-fsdevel@vger.kernel.org, Linux-ide Return-path: Content-Disposition: inline In-Reply-To: <20070313051144.GI5266@schatzie.adilger.int> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org On Tue, Mar 13, 2007 at 01:11:44AM -0400, Andreas Dilger wrote: > I'd guess a vast majority of IO will have the end similarly > misaligned as the start. Very little filesystem IO is 512 bytes, > possibly excluding XFS in an unusual mode. XFS (mkfs.xfs) can be told what the native sector size is and will adjust writes accordingly.