Grande quantité de données dans les sauvegardes après la mise à jour vers Sierra

tmutil offre un compare qui liste les changements entre deux sauvegardes de TM.

 compare [-@acdefglmnstuEUX] [-D depth] [-I name] [snapshot_path | path1 path2]
         Perform a backup diff.

         If no arguments are provided, tmutil will compare the computer to the latest
         snapshot. If a snapshot path is provided as the sole argument, tmutil will compare
         the computer to the specified snapshot. If two path arguments are provided, tmutil
         will compare those two items to each other. tmutil will attempt to inform you
         when you have asked it to do something that doesn't make sense or isn't supported.

Pour obtenir une liste d'instantanés, utilisez tmutil listbackups .