Tom Lane wrote:

Robert Creager <[EMAIL PROTECTED]> writes:
I've "vacuum_cost_delay = 10" in the conf file for 803.

Hmm, did you read this thread?
http://archives.postgresql.org/pgsql-performance/2005-07/msg00088.php

It's still far from clear what's going on there, but it might be
interesting to see if turning off the vacuum delay changes your results
with 8.0.


With the contrib autovacuum code if you don't specify vacuum delay settings from the command line, then autovacuum doesn't touch them. Therefore (if you aren't specifying them from the command line), on 803, the vacuum delay settings should be the same for a cron issued vacuum and an autovacuum issued vacuum. So if the vacuum delay settings are the problem, then it should show up either way.


Matt


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