estimating nightly diffs

Matt McCutchen hashproduct+rsync at
Wed Oct 3 00:35:42 GMT 2007

On 10/2/07, Noam Birnbaum <noam at> wrote:
> Any suggestions on how to estimate how much data rsync would synchronize on
> average in a given installation?  Assume that a full rsync has already run
> and the only data being updated is just the daily diffs.

As Steve implied, the best way is probably to try it and see!  Pass
--stats to rsync to get a bunch of useful information about how much
it is transferring.  If you don't yet trust rsync to write to the real
destination, you can use a dummy destination and --compare-dest to the
real one; this will give you the same statistics.


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