From mboxrd@z Thu Jan 1 00:00:00 1970 From: Edward Shishkin Subject: Re: testing compression in reiserfs4.1 Date: Thu, 07 Apr 2005 17:06:44 +0400 Message-ID: <42553064.9060604@namesys.com> References: <20050407090320.ABD062BC072@poczta.interia.pl> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com In-Reply-To: <20050407090320.ABD062BC072@poczta.interia.pl> List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: mangoo@interia.pl Cc: reiserfs-list@namesys.com mangoo@interia.pl wrote: >I was long looking for a Linux filesystem that would support r/w transparent compression. > >jffs2 is stable, but is dedicated to flash devices mainly, and hence the maximum size of this filesystem is 4 GB. > >ext2 + compression patches does not work with 2.6 kernels, has no journaling (it's ext2, after all), and is not considered stable (which doesn't bother me that much for my purposes). > >IBM's jfs supports compression, but not under Linux. > > >And there is (will be) reiserfs4.1, which will at last have compression support? > >Is it to be released anytime soon? > >If not, where can I get 4.1 sources and how can I patch my kernel with the current, most up-to-date reiserfs4.1-alpha-don't-use version? > >Features I need is compression, hardlinks and read/write (of course) - is the current state OK to test it on a /mnt/test partition with non-critical data? > > > > Hello, it looks mostly stable, but currently there is no human interface to create such files. Also it would be fine to make it a bit smart: there is a lot of incompressible files so flush algorithm should know when compression should be switched off. We are working on it now, wait for beta-release. Thanks, Edward. >Tomek > > >------------------------------------------------------------------ >Jan Pawel II 1920 - 2005 >http://link.interia.pl/f1871 > > > > >