On Tue, Oct 11, 2011 at 3:02 PM, alexandre - aldeia digital <adaldeia@xxxxxxxxx> wrote: > 2) Change all memory chips to new others, instead of maintain the old (16 > GB) + new (32 GB). Of course, mixing disables double/triple/whatuple channel, and makes your memory subsystem correspondingly slower. By a lot. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance