> "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:
> On the other hand, I have watched people lazy-vacuum production
> databases in 7.2.* and not seen any visible hit on system load
> (as far as top or vmstat could show, anyway).
From my experience lazy-vacuum never strains system load with
modern processors. It is defenitely IO-bound.
regards,
Nic