Note that there are also some issues in some flavors of windows with a
QOS setting that gives pgsql network traffic a low priority. I'm not
that familiar with it, I've just seen it mentioned.
There's also some issues that can come up with dns resolution and
network communication.
Just throwing those two out there. I don't use windows anymore
(except to play some classic games) so I'm certainly no expert on this
subject.
