You’re making the exact same calls to WordPress, be it 10 separate sites vs 1 site with 10 sub-sites, so that really can’t be any different, when you think about it.
I have the same question about performance, and that’s a good point.
What about if you increase blogs to like 1,000? Same calls either way, per your comment.
This is where I get confused. 1 mysql engine but either several db’s with a few tables or one db with more tables.
Any performance gains with multisite? What about record locking, or other database access pros/cons?