Long time needed for "Building file list" Any suggestions ?
greger_cronquist at yahoo.se
Tue Mar 23 08:22:12 GMT 2004
OK, I didn't think about that.
I guess it's irrelevant, but when I tried using find on a pretty large
folder tree on my Win2k system, using "find ." to get all the files was
about twice as fast as using "find . -ctime 24". However, using "find .
-printf "%p %c"" was about 20% slower than "find . -ctime 24", still
faster than rsync which is about 60% slower than find with -ctime.
Jim Salter wrote:
> No. Rsync has to build a list of *every single file in the
> filesystem*, along with - at a minimum - last modified datestamp.
> Rsync needs to be able to propagate deletions if necessary, and to do
> that, you have to compare the entire list of all files (not
> specifically excluded) in the specified section on both volumes, not
> just the changed ones.
> Also keep in mind that while if you're using the find / -ctime trick,
> YOU can assume that the other end is a mirror and you know exactly
> when the last time it was synchronized was, rsync knows no such
> thing. Rsync *produces* a mirror whether or not it started out with
> Jim Salter
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