Trouble shooting Slow clients on Hyper-V 2012r2 VM
Windows 2012r2 Hyper-v with Windows 2012r2 Guest VM.
We have migrated our accounting application from a physical server to a virtual server.
The accounting software runs at a comparable speed on the virtual server as it did on the physical server.
However, client workstations running the accounting application from the virtual server are much slower.
Example times to run a customer report
Run application report directly on the Physical server - 3 seconds
Run application report on network workstation attached to physical server - 10 seconds
Run application report directly on virtual server - 3 seconds
Run application report on network workstation attached to virtual server - 30 seconds
Disk, CPU, Memory and network utilization are all very low.
Can anyone advise a starting point for troubleshooting?
Many thanks in advance.
We have migrated our accounting application from a physical server to a virtual server.
The accounting software runs at a comparable speed on the virtual server as it did on the physical server.
However, client workstations running the accounting application from the virtual server are much slower.
Example times to run a customer report
Run application report directly on the Physical server - 3 seconds
Run application report on network workstation attached to physical server - 10 seconds
Run application report directly on virtual server - 3 seconds
Run application report on network workstation attached to virtual server - 30 seconds
Disk, CPU, Memory and network utilization are all very low.
Can anyone advise a starting point for troubleshooting?
Many thanks in advance.
ASKER
Thanks. I will get to work on those items.
I have 2 x GB NIC's teamed. Just for clarification, do I need to disable Offloading, VM queues and RSS on both the physical NIC and the VM Team NIC?
I have 2 x GB NIC's teamed. Just for clarification, do I need to disable Offloading, VM queues and RSS on both the physical NIC and the VM Team NIC?
Disable from wherever you can including OS Level
Use below command to disable on OS level and to revert use =Enabled
netsh int tcp set global chimney=disabled
netsh int tcp set global rss=disabled
netsh int ip set global taskoffload=disabled
netsh int tcp set global autotuninglevel=disabled
netsh int tcp set global ecncapability=disabled
netsh int tcp set global timestamps=disabled
Use below command to disable on OS level and to revert use =Enabled
netsh int tcp set global chimney=disabled
netsh int tcp set global rss=disabled
netsh int ip set global taskoffload=disabled
netsh int tcp set global autotuninglevel=disabled
netsh int tcp set global ecncapability=disabled
netsh int tcp set global timestamps=disabled
ASKER
Checked management traffic segregated - was already done
Disabled offloading and RSS on all the NIC cards
Disabled VMque for VM's
Disabled Offloading and RSS as well on the VM.
Disabled at OS level with provided NETSH commands
Rebooted host and started VM's
Negligible change to speed on workstations.
Disabled offloading and RSS on all the NIC cards
Disabled VMque for VM's
Disabled Offloading and RSS as well on the VM.
Disabled at OS level with provided NETSH commands
Rebooted host and started VM's
Negligible change to speed on workstations.
Did you disabled these things inside the VM's as well?
ASKER
No. I did everything on the host.
ASKER
I just carried out the same changes within the guest VM. Rebooted for good measure.
No noticeable change
No noticeable change
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Disable to offloading and RSS on all the NIC cards
Disable VMque for VM's
Disable Offloading and RSS as well on the VM.