On Monday 01 November 2010 15:16:49 Divakar Singh wrote: > I am using 9.0.1 Either thats not true or you cargo culted loads of your config from a significantly older pg version. Things like: #bgwriter_delay = 200 # 10-10000 milliseconds between rounds bgwriter_lru_percent = 0 # 0-100% of LRU buffers scanned/round #bgwriter_lru_maxpages = 5 # 0-1000 buffers max written/round #bgwriter_all_percent = 0.333 # 0-100% of all buffers scanned/round bgwriter_all_maxpages = 0 # 0-1000 buffers max written/round make me very suspicious. As I said, I would check the variables I referenced in my first post... Andres -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance