WAL does the same thing to DB journaling does to the FS. Plus allows you to roll back (PITR). As for the RAM, it will be in ram as long as OS decides to keep it in RAM cache, and/or its in the shared buffers memory. Unless you have a lot of doubt about the two, I don't think it makes too much sens to setup ramdisk table space yourself. But try it, and see yourself. Make sure that you have logic in place, that would set it up, before postgresql starts up, in case you'll reboot, or something. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
