On Sun, Mar 15, 2015 at 8:46 PM, Andres Freund <andres@xxxxxxxxxxxxxxx> wrote: > That imo doesn't really have anything to do with it. The primary benefit > of a BBU with writeback caching is accelerating (near-)synchronous > writes. Like the WAL. My point was, that having no proper raid controller (today bbu surely needed for the controller to be a proper one) + heavy writes of any kind, it is absolutely impossible to live with large shared_buffers and without io problems. > > Greetings, > > Andres Freund > > -- > Andres Freund http://www.2ndQuadrant.com/ > PostgreSQL Development, 24x7 Support, Training & Services -- 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
