Thank you, I'll try your suggestions. I'm just slow in doing so, because it's just a (sometimes pretty time consuming) hobby-project. I'm missing knowledge on how to monitor my DB status, i.e. how to check some of the things you've asked. Also I wonder, how's shared memory used by PostgreSQL. I'm irritated - how it could work with 32MB, but now I've got suggestion to increase it to 512MB (and it seems to work too...) Regards Alex -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general