importing all inventories: with 50% chance of choosing earlier parent: -rw-r--r-- 1 mbp mbp 296961 2005-04-09 22:37 inventory.drev -rw-r--r-- 1 mbp mbp 11184 2005-04-09 22:37 inventory.irev imported in 2.490s with no chance: clearly slows down, 11.163s to import -rw-r--r-- 1 mbp mbp 63590 2005-04-09 22:39 inventory.drev -rw-r--r-- 1 mbp mbp 11184 2005-04-09 22:39 inventory.irev with 25% chance: revfile.py add-series inventory 0 mbp* 7.86s user 0.12s system 96% cpu 8.247 total -rw-r--r-- 1 mbp mbp 79535 2005-04-09 22:42 inventory.drev -rw-r--r-- 1 mbp mbp 11184 2005-04-09 22:42 inventory.irev with full text inserted every 20 revisions: revfile.py add-series inventory 0 mbp* 1.98s user 0.06s system 95% cpu 2.139 total -rw-r--r-- 1 mbp mbp 133719 2005-04-09 22:44 inventory.drev -rw-r--r-- 1 mbp mbp 11184 2005-04-09 22:44 inventory.irev So pretty quick, simple, and somewhat easily justified. every 50 revisions: revfile.py add-series inventory 0 mbp* 3.35s user 0.08s system 93% cpu 3.667 total -rw-r--r-- 1 mbp mbp 91895 2005-04-09 22:46 inventory.drev -rw-r--r-- 1 mbp mbp 11184 2005-04-09 22:46 inventory.irev