On Tue, Jan 17, 2006 at 03:50:38PM +0100, Michael Riess wrote: > Well, > > I think that the documentation is not exactly easy to understand. I > always wondered why there are no examples for common postgresql > configurations. All I know is that the default configuration seems to be > too low for production use. And while running postgres I get no hints as > to which setting needs to be increased to improve performance. I have no There's a number of sites that have lots of info on postgresql.conf tuning. Google for 'postgresql.conf tuning' or 'annotated postgresql.conf'. > chance to see if my FSM settings are too low other than to run vacuum > full verbose in psql, pipe the result to a text file and grep for some > words to get a somewhat comprehensive idea of how much unused space > there is in my system. > > Don't get me wrong - I really like PostgreSQL and it works well in my > application. But somehow I feel that it might run much better ... > > about the FSM: You say that increasing the FSM is fairly cheap - how > should I know that? decibel@xxxxxxxxxxx[16:26]/opt/local/share/postgresql8:3%grep fsm \ postgresql.conf.sample #max_fsm_pages = 20000 # min max_fsm_relations*16, 6 bytes each #max_fsm_relations = 1000 # min 100, ~70 bytes each decibel@xxxxxxxxxxx[16:26]/opt/local/share/postgresql8:4% -- Jim C. Nasby, Sr. Engineering Consultant jnasby@xxxxxxxxxxxxx Pervasive Software http://pervasive.com work: 512-231-6117 vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
