I've got several Ubuntu 10.04 virtual machines running as Hyper-V guests on Windows Server 2008 R2 SP1 and they're all perfectly fine.
Today I installed my first Ubuntu 11.10 virtual machine and I'm seeing rediculous pings:
These servers are all connected via gigabit to a local LAN, with almost no network traffic at all1, with a legacy network adapter in Hyper-V.
I'm a bit of an Ubuntu n00b so I don't really know where to go from here. Any ideas?
free -m reports:
total used free shared buffers cached Mem: 485 470 15 0 63 299 -/+ buffers/cache: 107 378 Swap: 507 20 487
This is within a few mb of our other Ubuntu servers that are on 10.04.
I removed the Legacy NIC and installed a Synthetic one in Hyper-V and this did improve the numbers, in that they're around 10-30ms now, but I would still be expecting <1ms response times.
1As a comparison, I have another Ubuntu 10.04 guest on Hyper-V almost 1,000km away that has a ping of 33ms