On 2014-09-29 11:28:07 -0700, Josh Berkus wrote: > On 09/29/2014 08:53 AM, Andres Freund wrote: > >> - Remove xloginsert_slots/xloginsert_locks GUC - Not yet!! > >> > > >> > The text seems to indicate that there's some disagreement on this > >> > point. I don't have a strong opinion on whether or not to keep the > >> > GUC, but if we're going to remove it it should probably happen before > >> > beta3. It's going to be impossible to remove once we've released with > >> > it, I suspect. > > I vote for keeping it. > > Time for me to put on my "we have too many darned GUCs" curmudgeon hat. > > 1. What does it do?
Change scalability in write heavy loads. > 2. Are there reasons why users would want to change it from the > default? Yes, to improve scalability. > 3. Can we explain those reasons in the form of documentation? Yes. Try and benchmark it. It'll be hardware and workload dependant. Greetings, Andres Freund -- Andres Freund http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers