Hello. I have 2 questions: Is effective_io_concurrency working on WinXP sp2 ? and what is the difference between effective_io_concurrency = 0 and effective_io_concurrency = 1 Postgres 8.4.4 ------------ pasman -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general