you can also play with this-tiny-shiny tool : http://pgfoundry.org/projects/pgiosim/ It just works and heavily stress the disk with random read/write.
-- F4FQM Kerunix Flan Laurent Laborde -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
