On Wed, Sep 2, 2009 at 00:01, Wei Yan<weiyan1@xxxxxxxxx> wrote: > Hi: > > Looks like after postgres db server reboot, first query is very slow > (10+mins). After the system cache built, query is pretty fast. > Now the question is how to speed up the first query slow issue? > > Any pointers? Schedule a run of a couple of representative queries right as the database has started? That should pre-populate the cache before your users get there, hopefully. -- Magnus Hagander Me: http://www.hagander.net/ Work: http://www.redpill-linpro.com/ -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance