On Mon, Mar 31, 2014 at 8:24 AM, Niels Kristian Schjødt <nielskristian@xxxxxxxxxxxxx> wrote: > > Thanks, this seems to persist after a reboot of the server though, and I have never in my server's 3 months life time experienced anything like it. Could it be overheating and therefore throttling the cores? Also another thing to look at on large memory machines with > 1 CPU socket is zone_reclaim_mode being set to 1. Always set it to 0 on a linux machine running postgres. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance