Mark Wong escribió: > Hrm, tracking just the launcher process certainly doesn't help. Are > the spawned processed short lived? I take a snapshot of > /proc/<pid>/io data every 60 seconds. The worker processes can be short-lived, but if they are, obviously they are not vacuuming the large tables. If you want to track all autovacuum actions, change autovacuum_log_min_messages to 0. -- Alvaro Herrera http://www.CommandPrompt.com/ PostgreSQL Replication, Consulting, Custom Development, 24x7 support -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance