On Tue, Jan 13, 2015 at 3:21 PM, Andres Freund <and...@2ndquadrant.com> wrote: > My guess is rather that it's contention on the freelist lock via > StrategyGetBuffer's. I've seen profiles like this due to exactly that > before - and it fits to parallel loading quite well.
I'm not saying you're wrong, but the breakdown of _bt_moveright() relative to _bt_relandgetbuf() calls seems a bit fishy to me. I don't remember seeing _bt_moveright() or _bt_compare() figuring so prominently, where _bt_binsrch() is nowhere to be seen. I can't see a reference to _bt_binsrch() in either profile. -- Peter Geoghegan -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
