>>> Farhan Husain <russoue@xxxxxxxxx> wrote: > The machine postgres is running on has 4 GB of RAM. In addition to the other suggestions, you should be sure that effective_cache_size is set to a reasonable value, which would probably be somewhere in the neighborhood of '3GB'. This doesn't affect actual RAM allocation, but gives the optimizer a rough idea how much data is going to be kept in cache, between both the PostgreSQL shared_memory setting and the OS cache. It can make better choices with more accurate information. -Kevin -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance