> Star implements this in a very effective way (by using libfind) that is
> even
> faster that the find(1) implementation from Sun.

Even if I just "find" my filesystem, it will run for 7 hours.  But zfs can
create my whole incremental snapshot in a minute or two.  There is no way
star or any other user-space utility that walks the filesystem can come
remotely close to this performance.  Such performance can only be
implemented at the filesystem level, or lower.


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