This depends on what you are backing up, really. "Similar" does not mean "identical". If you have a few videos; or if you have a copy of the site inside a subfolder; or if you have a really large ZIP lying around then you can very easily get this kind of size difference. The log can only help you identify large files by searching for large file
Apart from that, tools in your hosting control panel are more suitable in chasing down bloat in your site. For example, cPanel has the Disk Space Usage tool which can be used for that purpose
. If you're a command line geek, du is your friend
. If you restore the backup locally, e.g. on MAMP, XAMPP or something similar, you can use a graphic directory statistics tool -e.g. WinDirStat
(Windows)- against the restored site to see where the bloat is.
Nicholas K. Dionysopoulos
Lead Developer and Director
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