-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Marcel Hilzinger wrote:
Am Donnerstag, 14. September 2006 12:15 schrieb Jeff Mahoney:
Hi all - [...] The solution for replacing an aging file system isn't to switch to a brand new unproven file system, but rather a proven one with a clear upgrade path. That file system is ext3.
Nice to hear that. I'm also a ReiserFS user from the first minute (Suse 6.4) and I never had problems with it. I also believe, that with a little support from the community reiser4 would have a better future, but that's politics.
As far as the change from ReiserFS to Ext3 is concerned however, I agree to do it. I used to do some stupid fs benchmarks with copying kernel source from one partition to another and with SL 10.0 things changed. ReiserFS always used to be faster than Ext3 for small files. And as most Linux files are small <= 100 k, Reiser did the work better. But from 10.0 on, Ext3 has gone faster (ReiserFS has gone slower) and it even performs now 10-20% better, than ReiserFS. These results are from yesterday:
Copying 260 MByte from Partiton A to Partition B
Ext3 ReiserFS XFS SL 10.1 53s 65s 210s Dapper 54s 71s 200s
Interesting numbers, but it really depends a lot on the tests you make. Things tend to change a lot when under heavy load, when you have concurrent access, when the drive is >80% full or not, etc... I've rather recently (just a few months ago) seen some seriously done benchmark where reiserfs still had the edge, by a significant margin. Not sure I'll be able to find it again, take my word for it ;) XFS scales best in terms of parallelization (number of CPUs/cores) but is a very bad choice for a typical desktop, also because it is said to use more CPU time than the other filesystems. - From what I've read, XFS is prolly the best option e.g. for streaming large files when you have a lot of CPUs, but it scales down very badly. ext3 is said to have its performance go down the gutter once your disk is 70/80% full, I wonder if that's still accurate with recent kernels. AFAIK (might be wrong though, haven't use ext3 since ages), ext3 still isn't capable of being resized while mounted, something reiserfs is able to do since quite some time (only growing though) - a *very* useful feature, especially in combination with LVM. Right/wrong ? [...] - -- -o) Pascal Bleser http://linux01.gwdg.de/~pbleser/ /\\ <pascal.bleser@skynet.be> <guru@unixtech.be> _\_v The more things change, the more they stay insane. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) iD8DBQFFCbJcr3NMWliFcXcRApUEAKCbQG2tsiK1JkenR6h43jcD89D5mgCeJY/j pzpzKHn7+YMkC3fHzq72YU4= =/3Fy -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org