Re: First steps with 8.3 and autovacuum launcher

"Guillaume Smet" <guillaume.smet@gmail.com> writes:
> So a total of: 16 minutes for 8.2 compared to 53 minutes for 8.3 to
> have the database in the same state.

Please try that experiment with all three configurations on both
versions:* autovacuum off* autovacuum on, autovacuum_vacuum_cost_delay = 0* autovacuum on, autovacuum_vacuum_cost_delay
=20
 
Comparing apples and oranges isn't real helpful in determining
what's happening.
        regards, tom lane