On Tue, Apr 26, 2011 at 11:15 AM, Joel Reymont <joelr1@xxxxxxxxx> wrote: > I'm running pgsql on an m1.large EC2 instance with 7.5gb available memory. > > The free command shows 7gb of free+cached. My understand from the docs is that I should dedicate 1.75gb to shared_buffers (25%) and set effective_cache_size to 7gb. Sounds like a reasonable starting point. You could certainly fiddle around a bit - especially with shared_buffers - to see if some other setting works better, but that should be in the ballpark. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance