Hello,
I did play with ext2 dir_hash, but didn't find it helping me much (it would help lookups sometimes, but slowed file creation significantly on my tests). I've also heard people praise reiserfs for it's performance under these conditions (personally I don't trust it, but some of that is historical baggage)
I'm using ext3 with dir_hash. I considered using XFS, but there are a lot of benchmarks that show that XFS is not faster in general, also the XFS development seems to be stucked at the moment and from my own experience as well as from other people in a recent thread on this mailinglist there are some really strange errors appearing from time to time with XFS that are making it a bad choice for production systems, especially when it happens, that the server crashs unexpectedly (i.e. a memory module fails). I tried to trust ReiserFS several times and I had so much problems with it, that I don't intend to use it ever again. Even Novell/SuSE which praised ReiserFS for a long time turned away from it.
Regards Marten ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
