Did you seperate the data & the transaction log? I've noticed less than optimal performance on xfs if the transaction log is on the xfs data partition, and it's silly to put the xlog on a journaled filesystem anyway. Try putting xlog on an ext2 for all the tests.
Mike Stone ---------------------------(end of broadcast)--------------------------- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq