On Thu, Feb 11, 2016 at 12:53 PM, Andres Freund <and...@anarazel.de> wrote: >> One problem is that it makes for misleading results if you try to >> benchmark 9.5 against 9.6. > > You need a really beefy box to show the problem. On a large/new 2 socket > machine the performance regression in in the 1-3% range for a pgbench of > SELECT 1. So it's not like it's immediately showing up for everyone. > > Putting it on the open items list sounds good to me.
Well, OK, I've done that then. I don't really agree that it's not a problem; the OP said he saw a 3x regression, and some of my colleagues doing benchmarking are complaining about this commit, too. It doesn't seem like much of a stretch to think that it might be affecting other people as well. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers