(I hope to start making more of these type posts of weirdness I find, but this is a first.)
We were having what I thought were network issues at work, so I started a pingplotter on my XP vm on my hyper-v server at home. Based on the graphs below, things look pretty latent.
If you run the same thing on a physical machine on the same network, the graphs look much better, and you can see that the network is not the problem.
The takeaway here I guess is to be careful with this sortof thing. Right now I’m not sure if it is a hyper-v specific thing or if it’s just a vm in general.