From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: with ECARTIS (v1.0.0; list xfs); Wed, 23 Apr 2008 22:33:49 -0700 (PDT) Received: from larry.melbourne.sgi.com (larry.melbourne.sgi.com [134.14.52.130]) by oss.sgi.com (8.12.11.20060308/8.12.11/SuSE Linux 0.7) with SMTP id m3O5XTHE018652 for ; Wed, 23 Apr 2008 22:33:31 -0700 Date: Thu, 24 Apr 2008 15:33:58 +1000 From: David Chinner Subject: Re: XFS drops create/delete files to 6.6% of EXT3 (software raid) and to 0.6% of EXT3 (3ware hardware raid) Message-ID: <20080424053358.GW103491721@sgi.com> References: <4810062F.50100@sandeen.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4810062F.50100@sandeen.net> Sender: xfs-bounce@oss.sgi.com Errors-to: xfs-bounce@oss.sgi.com List-Id: xfs To: Eric Sandeen Cc: Michael Darling , xfs@oss.sgi.com On Wed, Apr 23, 2008 at 11:01:51PM -0500, Eric Sandeen wrote: > Michael Darling wrote: > > I am preparing a new server, and benchmarking EXT3 against XFS, both using > > software RAID and hardware RAID using a 3ware 9650SE-4LPML. > > > > Using bonnie++ as a benchmark, I am seeing significant performance boosts in > > my block sequential reads and writes moving from EXT3 to XFS. I am aware > > that XFS won't create and delete files as quickly as EXT3, however I am > > seeing drops from 29455/second to 1957/second using software RAID, and from > > 32524/second to 189/second using hardware RAID. I'm not sure if when using > > software raid, if creating and deleting files should drop to 6.6% of EXT3. > > But, what I'm pretty sure of, is when using hardware raid, that creating and > > deleting files shouldn't drop to 0.6% of EXT3. > > So I played with this a little on 2.6.25, on plain partitions. > > I saw similar numbers; for example, sequential creates: > > ext3: 23698/s > xfs: 319/s > xfs,nobarrier: 4478/s And with logbsize=256k? Cheers, Dave. -- Dave Chinner Principal Engineer SGI Australian Software Group