Hi Roberto, Hardware etc. is a solution; but you have not yet characterised the problem. You should investigate if the events are mostly... - reads - writes - computationally intensive - memory intensive - I/O intensive - network I/O intensive - independent? (e.g. does it matter if you split the database in two?) You should also find out if the current server comfortably supports 3 million events per day or if you already have problems there that need addressed. Whereas if it handles 3 million with plenty of spare I/O, memory, CPU, network bandwidth, then maybe it will handle 5 million without changing anything. Once you've gathered this information (using tools like pg_stat_statements, top, iotop, ... and by thinking about what the tables are doing), look at it and see if the answer is obvious. If not, think about what is confusing for a while, and then write your thoughts and data as a new question to the list. Graeme. On 03 Oct 2014, at 10:55, Roberto Grandi <roberto.grandi@xxxxxxxxxxxxxx> wrote: > Dear Pg people, > > I would ask for your help considering this scaling issue. We are planning to move from 3Millions of events/day instance of postgres (8 CPU, 65 gb ram) to 5 millions of items/day. > What do you suggest in order to plan this switch? Add separate server? Increase RAM? Use SSD? > > Any real help will be really precious and appreciated. > Roberto > > > -- > Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-performance -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance