On Wed, Apr 13, 2016 at 11:22 PM, Amit Kapila <amit.kapil...@gmail.com> wrote: > Yes, I also think that this particular issue can be closed. However I felt > that the observation related to performance variation is still present as I > never need to perform prewarm or anything else to get consistent results > during my work in 9.5 or early 9.6. Also, Andres, Alexander and myself are > working on similar observation (run-to-run performance variation) in a > nearby thread .
Yeah. My own measurements do not seem to support the idea that the variance recently increased, but I haven't tested incredibly widely. It may be that whatever is causing the variance is something that used to be hidden by locking bottlenecks and now no longer is. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers