Alvaro Herrera <alvherre@commandprompt.com> writes:
> Also if autovacuum is eating all your I/O you may want to look into
> throttling it back a bit by setting autovacuum_vacuum_cost_delay to a
> non-zero value.
BTW, why is it that autovacuum_cost_delay isn't enabled by default?
I can hardly believe that anyone will want to run it without that.
*Especially* not with multiple workers configured by default.
regards, tom lane