From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hans Reiser Subject: Re: ReiserFS v3 + millions of files? Date: Mon, 27 Oct 2003 09:55:41 +0300 Message-ID: <3F9CC16D.10109@namesys.com> References: <200310262146.28850.d.oglesby@insightbb.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com In-Reply-To: <200310262146.28850.d.oglesby@insightbb.com> List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: Dan Oglesby Cc: reiserfs-list@namesys.com Dan Oglesby wrote: >Greetings... > >Long time ReiserFS user, first time I've had a problem. Signed up for the >mailing list last week, and was surprised to see so little traffic (might be >a good thing?). > >I'm running Red Hat 7.3 using a Red Hat 2.4.20 kernel. The system has a >RAID-5 array via 3Ware 7500 controller, and three Western Digital 120GB >"Special Edition" hard drives. The array is one filesystem, ReiserFS. The >operating system, swap, and other files are stored on a hard drive that is on >the primary IDE controller off of the motherboard. > >The system is a single board computer, with a P4 3.06 GHz hyperthreaded >processor (kernel is SMP enabled), 512MB of RAM, and contains a mix of >ReiserFS and EXT2 filesystems on the primary drive (ReiserFS only on the >array). No NFS. > >The array is used to store what will basically amount to more than one million >files with an average size of sixty kilobytes. > >During simulations for file writes, I'm seeing write performance begin to drop >dramatically after 800,000 files have been stored on the filesystem. > >The filesystem is being mounted with the following options: >defaults,notail,noatime,nodiratime > >The filesystem was created with default options, basically a "mkreiserfs /dev/ >sda1". > >Is this behavior I should expect from ReiserFS v3? > >This week I will be switching from a Red Hat kernel to a vanilla kernel (from >kernel.org), first the latest 2.4 kernel, then the latest 2.6 kernel. After >that... I dunno. > >Help? > >--Dan Oglesby > > > > > what size directories? -- Hans