If it worked well for a while and is now seemingly taking exponentially long to finish, I'd make sure you're not swapping excessively. A directory of mail probably has a much larger ratio of files to bytes than other places in your filesystem, so just saying "there's not much data there" may misdiagnose the problem.
Since you're (presumably) asking rsync to transfer a large number of files, rsync must hold information about all of them in its address space while it runs, and it's possible that you've crossed some magic threshold (as the number of users has grown) that is causing rsync not to fit in physical memory after it's built that data structure. If that's true, you're going to run very, very slowly as all those pages get thrashed onto and off of the disk again. [And if you have dirvish passing -H to rsync, this is even more likely (especially with older rsync versions)---and isn't fully fixed even in the most-recent rsync release (since -H makes it hard for rsync to know when it can forget about already-transferred directories if there's a possibility of a hardlink in there somewhere).] _______________________________________________ Dirvish mailing list Dirvish@dirvish.org http://www.dirvish.org/mailman/listinfo/dirvish
