From mboxrd@z Thu Jan 1 00:00:00 1970 From: Edward Shishkin Subject: Re: reiserfs - recommendations for small files Date: Tue, 20 Oct 2009 01:34:17 +0200 Message-ID: <4ADCF779.1060905@gmail.com> References: <84c89ac10910171111n69b9832fr42d30aa07d84b262@mail.gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <84c89ac10910171111n69b9832fr42d30aa07d84b262@mail.gmail.com> Sender: reiserfs-devel-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: Viji V Nair Cc: reiserfs-devel@vger.kernel.org Viji V Nair wrote: > Hi, > > System : Fedora 11 x86_64 > Current Filesystem: 150G ext4 (formatted with "-T small" option) > Number of files: 50 Million, 1 to 30K png images > > We are generating these files using a python programme and getting > very slow IO performance. While generation there are only writes, no > read. After generation there are heavy read and no write. These files > are not in a single directory, this is a pyramid structure. There are > total 15 pyramids and coming down from top to bottom the sub > directories and files are multiplied by a factor of 4 > > I am looking for an alternate file system and best > practices/recommendation to get a better performance. What the > optimisation methods available in reiserfs for small files? > I think that default tail packing policy would be the best for you. Also use tea hash. Thanks, Edward. > Any suggestions of the above are greatly appreciated. > > Viji > -- > To unsubscribe from this list: send the line "unsubscribe reiserfs-devel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > >