Also also, the definitive page for postgres and dirty pages etc is here: http://www.westnet.com/~gsmith/content/linux-pdflush.htm Not sure if it's out of date with more modern kernels. Maybe Greg will chime in. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance