On Wed, Jul 30, 2014 at 12:51 PM, Kevin Goess <kgo...@bepress.com> wrote: > A couple months ago we upgraded the RAM on our database servers from 48GB to > 64GB. Immediately afterwards the new RAM was being used for page cache, > which is what we want, but that seems to have dropped off over time, and > there's currently actually like 12GB of totally unused RAM. > > http://s76.photobucket.com/user/kgoesspb/media/db1-mem-historical.png.html > > Is that expected? Is there a setting we need to tune for that? We have > 400GB of databases on this box, so I know it's not all fitting in that > 49.89GB.
could be a numa issue. Take a look at: http://frosty-postgres.blogspot.com/2012/08/postgresql-numa-and-zone-reclaim-mode.html merlin -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
