We've been having issues lately with slow VM performance on our 2012 R2 hosts. I'm curious if anyone else is encountering these issues or has any suggestions for resolution.
The slowness seems to occur when first logging into a VM either via RDP or Console. It takes awhile for the desktop to load and everything seems sluggish. Eventually after a few minutes the VM seems to become more responsive. When checking resources for the VMs the CPU and memory being used seem to be fine and it does not seem to be due to any strain on the VM. The hosts have plenty of resources as well with over 100GB of RAM free, the CPU ratio is 1:1 or less on the hosts, and CPU usage is usually 16% or less. The BIOS settings on the hosts have also been adjust so there are no c-states being used and speed-step has been turned off.
Is anyone else experiencing this? Any thoughts on what may be causing this?