-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi everyone, Constantin Loizides <[EMAIL PROTECTED]> has finally released an announcement about the results of his tests about fragmentation of journaling filesystems. He is currently in active discussion with developers in the XFS mailing list (have yet to read the ReiserFS mailing list to see how things are going there). Basically people recommend he do the following (as far as XFS is concerned): o add random deletes to his ageing simulator o compare the fragmentation of the filesystem before and after running xfs_fsr (a filesystem reorganizer for XFS which is part of the xfsdump package and is currently undergoing some tests because it looks like it has some issues) Still, those interested in finding out more about the journalling filesystems currently available to Linux will want to check his site out (and maybe update every once in awhile to see if things have drastically changed). --> Jijo - -- Federico Sevilla III :: [EMAIL PROTECTED] Network Administrator :: The Leather Collection, Inc. GnuPG Key: <http://www.leathercollection.ph/jijo.gpg> - ---------- Forwarded message ---------- Date: Wed, 01 Aug 2001 12:01:02 +0200 From: Constantin Loizides <[EMAIL PROTECTED]> To: fsdevel-list <[EMAIL PROTECTED]>, xfs-list <[EMAIL PROTECTED]>, reiserfs-list <[EMAIL PROTECTED]>, jfs-list <[EMAIL PROTECTED]> Subject: Fragmentation of Journaling FS Hello, I would like to announce the new version of my fragmentation project website at http://www.informatik.uni-frankfurt.de/~loizides/reiserfs/ Please note, that this page is not intended to jugde and compare the absolut performance of the different filesystems. I rather hope that it may help developers in designing their filesystems and maybe users in deciding which one to choose for which task. It's one of the powers of linux that it provides so many different filesystems, so we should be aware of the pros and cons of each. Two results of the "agesystem" tool I describe on the page, really are strange and need to be understood. Why is there the sharp performance degrade of XFS and JFS? (the cpu time does not show this behaviour, so it seems to be disk time). Surely more work has to be done, newer versions of the systems to be tested, different setups to be tried. Please note, that agesystem is a misleading term, it doesnot age up to now, it just write to the disk once without deletion of any created file. Please read through my descriptions and look at the results, maybe you have ideas and suggestions what to measure in future. At the moment test are running with a different setup, I will describe the tool "agesystem2" on the page today or tomorrow. Regards, Constantin -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE7aDvN5rCBSJO3Rr4RAl1CAJ9LrWLzP/TrenIQ7eJfIwGc9BUaNQCdENOu ywwVKpa6Nd+xhwLYp88lheM= =UiWf -----END PGP SIGNATURE----- _ Philippine Linux Users Group. Web site and archives at http://plug.linux.org.ph To leave: send "unsubscribe" in the body to [EMAIL PROTECTED] To subscribe to the Linux Newbies' List: send "subscribe" in the body to [EMAIL PROTECTED]
