Robert, > Another point is that parsing overhead is quite obviously not the > reason for the massive performance gap between one core running simple > selects on PostgreSQL and one core running simple selects on MySQL. > Even if I had (further) eviscerated the parser to cover only the > syntax those queries actually use, it wasn't going to buy more than a > couple points.
I don't know if you say Jignesh's presentation, but there seems to be a lot of reason to believe that we are lock-bound on large numbers of concurrent read-only queries. -- Josh Berkus PostgreSQL Experts Inc. http://pgexperts.com San Francisco -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
