Re: [rdiff-backup-users] why does exclude move files to increments?

[Marcel M. Cary]

If rdiff compares checksums of files to see whether they've changed, maybe 
Brandon is looking to speed this up by assuming that files whose 
timestamps haven't changed have indeed not changed.  In otherwords, trust 
the filesystem timestamp and skip the checksumming.

Although there is certainly a risk that files will be created and have 
their modification timestamp set to the past (like with "cp -a"), maybe 
it's an acceptable risk in some situations?

If so, then rdiff-backup is doing almost what Brandon wants, but more 
slowly.

Marcel