On 07/19/2012 07:33 AM, Felix Scheicher wrote:
Hi, I am running a 9.1 server at Ubuntu. When I upgraded to the current version I did a pg_dump followed by pg_restore and found that the db was much faster. But slowed down again after two days. I did the dump-restore again and could now compare the two (actually identical) databases. This is a query of the old one directly after a VACUUM ANALYSE:
...
No matter how much I vacuum or analyse the slow db, I don't get it faster. I also checked for dead tuples - there are none.
Try running CLUSTER on the relevant tables and see if it makes a difference. If it does you might want to look into using pg_reorg periodically.
cheers andrew -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
