Mark Phippard <markp...@gmail.com> writes: > I would imagine svn upgrade is almost entirely writes and I recall it does > quite a few transactions. So couldn't the linear slow down just be based on > the growth in the amount of bytes that are written to disk each time?
Yes, number of transactions matters a lot. However upgrade is a special case that runs in a single SQLite transaction as this makes most upgrades faster. Maybe for really large upgrades the huge transaction is a problem? My 100,000 node working copy upgrades in 45 minutes. Upgrade does a number of read queries as well as writes, but all within the same transaction. -- Philip
