Why each backup requires so much space?

[zickzhou]

Originally Posted by dnanian

1. Cmd+k mounts, but you have to make sure you add any authentication information into the keychain if prompted.

Then I do have the right map and the keychain information..

Originally Posted by dnanian

2. Again, your personal change does not reflect the changes made by the system, or to non-user files, or to caches, indexes, databases, etc...

I did not have any other program other than superduper and finder running..
The only other things I can think of are the quicksilver and spotlight, which keep on indexing files in my mac. Is there a way to know what are the files being backed up in the most recent update? What is expected backup file size assuming the system is in an idle state?

Thanks