On Fri, Apr 25, 2014 at 5:53 PM, Pavel Stehule <pavel.stehule@xxxxxxxxx> wrote: > 2014-04-25 10:48 GMT+02:00 Mehdi Ravanbakhsh <babakco@xxxxxxxxx>: >> 2- how i can chose max connection number for pgsql server based on cpu >> core and RAM capacity that have maximum Efficiency? > usually max performance is about 10 x CPU connections. But it highly depends > on load. As well as transaction model counts, are you for example using long or short transactions? As a starting point, you could as well use something like ((core_count * 2) + effective_spindle_count). have a look here for more details: http://wiki.postgresql.org/wiki/Number_Of_Database_Connections#How_to_Find_the_Optimal_Database_Connection_Pool_Size -- Michael -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
