[Tom Lane - Tue at 02:26:53PM -0400]
> > 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.
Modified it to 20/250, and it definitively helped. Sorry for the
list verbosity; I should have been able to resolve this myself already
some 2-3 emails ago :-) I wanted a "soft" introduction of autovac in
production, and assumed that it was better to begin with too much sleep
than too little! Well, well.
