Josh Berkus <josh(at)agliodbs(dot)com> writes:
> What I'm confused about is that this shouldn't be anything new for 8.1. Yet
> 8.1 has *worse* performance on the STP machines than 8.0 does, and it's
> pretty much entirely due to this check.
That's simply not believable --- better recheck your analysis. If 8.1
is worse it's not because of page-dumping, because we are more efficient
on that than before not less so. Perhaps there's another issue?
regards, tom lane