This is an errorlog for the "1.03 is significant slower than 1.02"-problem!
In this case it was an 56GB partition on an 250GB Hitachi SATA-HDD under Windows Vista Home-Premium 64 Bit connected to an NFORCE-4 Board (DFI-LANparty 4) with an Dualcore AMD 64 X2 3800+.
This 56 GB (around ~20 GB are FREE SPACE!) took from 0% to around 90% defragmenting 2 whole days before I stopped it (I could swear that from 0%-80% it was going fast as always), searched the forum and made an short "snapshot" in debug mode from about 1:15h runtime.
Then I re-installed v1.02 and it made the last 5-10% in the time I registered my forum account here...
Well I have to say this is my gaming partition and Age of Empire 3 alone has a few thousand MP3s as single files, but 2 days are definatly too much
I took an short few in the log, and what I found could be part of the problem : "Destination block is not free." and "failed to retrieve file size!"
edit: I made a little counting with Total-Commander and here are the facts if you are interested in: 38.341.055.143 Bytes in 18.907 files spreaded in 680 folders.
p.s.: Thank you for your great work with defraggler!
?Nuff said, here comes the log: