On 04/07/2015 09:46 AM, Mel Llaguno wrote: > FYI - all my tests were conducted using Ubuntu 12.04 x64 LTS (which I > believe are all 3.xx series kernels). If it's 3.2 or 3.5, then your tests aren't useful, I'm afraid. Both of those kernels have known, severe, memory management issues. -- Josh Berkus PostgreSQL Experts Inc. http://pgexperts.com -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance