Scott,
FIO with profiles such as the below samples are easy to set up, and they can be mix/matched to test what happens with mixed read/write seq/rand -- with surprising and useful tuning results. Forcing a cache flush or sync before or after a run is trivial. Changing to asynchronous I/O, direct I/O, or other forms is trivial. The output result formatting is very useful as well.
FIO? Link? -- Josh Berkus PostgreSQL Experts Inc. www.pgexperts.com -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
