Hi Alexey, On Wed, Mar 26, 2014 at 1:21 PM, Alexey Vasiliev <leopard_ne@xxxxxxxx> wrote: > I read from several sources, what maximum shared_buffers is 8GB. I believe that was an issue on some older versions, and thats why was mentioned in several talks. Today it is a sort of apocrypha. > Does this true? If yes, why exactly this number is maximum number of > shared_buffers for good performance (on Linux 64-bits)? 25% of available RAM is a good idea to start. Sometimes, if you have heavy workload _and_ it is possible to reside whole database in memory, better to use something larger, about ~75% of RAM. Best regards, Ilya -- Ilya Kosmodemiansky, PostgreSQL-Consulting.com tel. +14084142500 cell. +4915144336040 ik@xxxxxxxxxxxxxxxxxxxxxxxxx -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
