Jan Wieck <JanWieck(at)Yahoo(dot)com> writes:
> However, I have not seen much evidence yet that the vacuum delay alone
> does that much.
Gaetano and a couple of other people did experiments that seemed to show
it was useful. I think we'd want to change the shape of the knob per
later suggestions (sleep 10 ms every N blocks, instead of N ms every
block) but it did seem that there was useful bang for little buck there.
regards, tom lane