On Sun, Oct 31, 2010 at 21:59, Greg Smith <greg@xxxxxxxxxxxxxxx> wrote: > open_datasync support was just added to Linux itself very recently. Oh I didn't realize it was a new feature. Indeed O_DSYNC support was added in 2.6.33 It seems like bad behavior on PostgreSQL's part to default to new, untested features. I have updated the tuning wiki page with my understanding of the problem: http://wiki.postgresql.org/wiki/Tuning_Your_PostgreSQL_Server#wal_sync_method_wal_buffers Regards, Marti -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
