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Latency on Virtual Switch - Hyper-V 2008R2 - Guest VM 2008R2 - HP
Experiencing an issue with unusual ping times from within a Hyper-V VM running 2008R2.
The configuration is as follows:
Host:
HP Proliant ML350 Gen8
Windows Server 2008 R2 running Hyper-V
4GB RAM
VM:
Windows Server 2008 R2
16GB RAM
2 x vCPU
See attached picture for ping times for an example of the issue. I believe this is causing unexpected issues with Office applications crashing when using/opening remote files as well as unexpected issues with 3rd party apps (Tasbooks).
When running a ping -t from the host to a network device, the ping responses are always <1ms. From within the VM is where the problem occurs.
Any help appreciated.
Virtual Machine Queues has been disabled, as per other suggestions found, along with the offloading.
pings.JPG
The configuration is as follows:
Host:
HP Proliant ML350 Gen8
Windows Server 2008 R2 running Hyper-V
4GB RAM
VM:
Windows Server 2008 R2
16GB RAM
2 x vCPU
See attached picture for ping times for an example of the issue. I believe this is causing unexpected issues with Office applications crashing when using/opening remote files as well as unexpected issues with 3rd party apps (Tasbooks).
When running a ping -t from the host to a network device, the ping responses are always <1ms. From within the VM is where the problem occurs.
Any help appreciated.
Virtual Machine Queues has been disabled, as per other suggestions found, along with the offloading.
pings.JPG
a ping time of less than 1ms is about the fastest you can get.
ASKER
I agree, I think.
What about the attached image showing the problem?
What about the attached image showing the problem?
The image attached has only a couple higher than 1ms, and those are so minor as to be negligible.
ASKER
I wouldn't expect anything more than <1ms between virtual machine and host. Am I being unreasonable?
Often those ping response times will reach teen figures.
Often those ping response times will reach teen figures.
ASKER CERTIFIED SOLUTION
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