Hi >>>>> "D" == Dimitri <dimitrik.fr@xxxxxxxxx> writes: D> current postgresql.conf: D> #================================ D> max_connections = 2000 # (change requires restart) D> temp_buffers = 200MB temp_buffers are kept per connection and not freed until the session ends. If you use some kind of connection pooling this can eat up a lot of ram that could be used for caching instead. Regards, Julian -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance