On Fri, 4 Jan 2019 at 04:39, Justin Pryzby <pryzby@telsasoft.com> wrote:
> Running 11dev with your v10 patch applied, this takes 2244ms with empty buffer
> cache after postmaster restarted on a totally untuned instance (and a new
> backend, with no cached opened files).
>
> I was curious why it took even 2sec, and why it did so many opens() (but not
> 20k of them that PG11 does):
It would be pretty hard to know that without seeing the query plan.
--
David Rowley http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
