I have a number of machines with slower than expected backups and many 
more files than expected backed up (v5.1MP3a+). 

These are all Linux systems with file systems that have (in very round 
numbers) a million files, 100K directories and 100GB data.


With TIR and move detection enabled, an incremental backup time is a 
couple hours.  In addition, an incremental (and succeeding cumulative 
incrementals) contains a file count of 30-40% of a full backup ... this 
on very quiet systems.

With TIR disabled, an incremental takes 30 minutes (1/4 to 1/3 of the 
time) and backs up only 2-5% of a full.

So with TIR (with move detection) hundreds of thousands of files are 
getting backed up that are not with it off.  Is this expected or does it 
sound like a problem/bug?

Thanks in advance for sharing your experiences!    cheers, wayne