I doubt you'll get much useful feedback because your question is too broad for a mailing list answer. If you're looking for basic performance guidelines, I recommend Greg Smith's "PostgreSQL 9.0 High Performance" [1] (disclaimer: I used to work with Greg and got a free copy), although I don't think he spent much time on running virtualized (which certainly could affect things). Then if you have *specific* hardware or query questions, this list is a great resource. [1]: http://www.2ndquadrant.com/books/postgresql-9-0-high-performance/ --- Maciek Sakrejda | System Architect | Truviso 1065 E. Hillsdale Blvd., Suite 215 Foster City, CA 94404 (650) 242-3500 Main www.truviso.com -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance