IMHO you can't expect to get meaningful numbers this way, based only on store size.Other factors are number of files, avg file size, number of submits, editions, etc. And also CPU, memory, number of errors found (in case of iwfsck), etc, etc.Although, maybe somebody has some simplified rule of thumb numbers...EDIT: note also that iwfsshrink & iwmigrate can be run in background, with the system running. That's not the case for iwfsck.
