On Tue, Mar 21, 2017 at 10:01 AM, Amit Kapila <amit.kapil...@gmail.com> wrote: >> I think that very wide columns and highly indexed tables are not >> particularly unrealistic, nor do I think updating all the rows is >> particularly unrealistic. Sure, it's not everything, but it's >> something. Now, I would agree that all of that PLUS unlogged tables >> with fsync=off is not too realistic. What kind of regression would we >> observe if we eliminated those last two variables? > > Sure, we can try that. I think we need to try it with > synchronous_commit = off, otherwise, WAL writes completely overshadows > everything.
synchronous_commit = off is a much more realistic scenario than fsync = off. -- 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