Scott Carey <scott@xxxxxxxxxxxxxxxxx> writes: > No matter how you slice it, the default on Linux is implicitly changing and the choice is to either: > * Return the default to fdatasync > * Let it implicitly change to O_DSYNC > The latter choice is the one that requires testing to prove that it is the proper and preferred default from the performance and data reliability POV. And, in fact, the game plan is to do that testing and see which default we want. I think it's premature to argue further about this until we have some test results. regards, tom lane -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance