On Monday 01 November 2010 15:28:19 Divakar Singh wrote: > Do you mean these parameters have been removed starting 9.X? > As I see on > http://www.network-theory.co.uk/docs/postgresql/vol3/BackgroundWriter.html > ,these parameters were added starting from 8.0 right? No, I mean setting to 0 is a bit of a strange value in many situations. And you have comments like: #max_fsm_pages = 20000 # min max_fsm_relations*16, 6 bytes each #max_fsm_relations = 1000 # min 100, ~70 bytes each Which reference config options which do not exist anymore. And you have shared_buffers = 81920 Which indicates that you started from 8.1/8.2 or so... Andres -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance