Tobias Brox <tobias(at)nordicbet(dot)com> writes:
>> Perhaps you have overly aggressive vacuum cost delay settings?
> autovacuum_vacuum_cost_delay = 500
> autovacuum_vacuum_cost_limit = 200
Well, that's going to cause it to sleep half a second after every dozen
or so page I/Os. I think you'd be well advised to reduce the delay.
regards, tom lane