Hello, We are running a PostgreSQL 8.4 database, with two tables containing a lot (> 1 million) moderatly small rows. It contains some btree indexes, and one of the two tables contains a gin full-text index. We noticed that the autovacuum process tend to use a lot of memory, bumping the postgres process near 1Gb while it's running. I looked in the documentations, but I didn't find the information : do you know how to estimate the memory required for the autovacuum if we increase the number of rows ? Is it linear ? Logarithmic ? Also, is there a way to reduce that memory usage ? Would running the autovacuum more frequently lower its memory usage ? Regards, -- Gaël Le Mignot - gael@xxxxxxxxxxxxxxxx Pilot Systems - 9, rue Desargues - 75011 Paris Tel : +33 1 44 53 05 55 - www.pilotsystems.net Gérez vos contacts et vos newsletters : www.cockpit-mailing.com -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance