What would be interesting is a new comparison between reiserFS reiser4 andActually I agree with you that JFS is architecturally much more interesting than ext3 (though Andrew Morton's readahead code for ext* is beautiful stuff). I haven't really looked at why JFS is slow, though usually being slow at <100k sized files in a journaling filesystem is due to the journaling code. The thing about performance is that the mistakes count for 4x what the things done right count for. Chris Mason did a lot for V3's performance compared to the competition by writing nice journaling code for us.
latest XFS. To be onest I think ext3, with or withou HTree, obsolete, but it is
abvious if you consider its origins, while I do not speack about JFS, since
technically is interesting, but then the bench I did, more than an year ago,
were not untisiasmant, and it was buggy when in a DIR there were too many
"small" files.
Luigi