On Sep 19, 2007 17:07 +0200, Jan Kara wrote: > I was just wondering: Currently we start to build h-tree in a directory > already when the size of directory exceeds one block. But honestly, it does > not seem to make much sence to use this feature until the directory is much > larger (I'd say at least 16 or 32 KB). It actually slows down some > operations like deleting the whole directory, etc. So what is the reason > for starting building the tree so early? Just the simplicity of building it > when the directory is just one block large? Yes, doing it at one block is easy, doing it with more blocks is complex. At the time we added this feature, tests showed no performance difference between 2 unhashed blocks and 2 hashed blocks so the easier code was used. Cheers, Andreas -- Andreas Dilger Principal Software Engineer Cluster File Systems, Inc. - To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
