Windows 2000 VMWare Virtual machine time and ping slow

gregurl
gregurl used Ask the Experts™
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I had P2V a physical Windows 2000 server to VMWare ESX 3.1 about 3 months ago.

I have notice recently that the clock has been running slow. Also when I ping out of the server, I always get a 10ms response. If I ping from a server to the converted Windows 2000 server, the ping goes to a normal 1ms on the local LAN.

I think the slow ping times and clock are related. What should I check for?

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Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
Are you have any other issues with Networking?

Have you installed VMware Tools, to sync the Virtual Machine to the Host time, of if you have VMware Tools installed, have you ticked the Box to enable time sync?

Author

Commented:
No other issues with networking.

I found that 10ms is the way Windows 2000 reports the ping times versus the 1ms of Windows 2003.

As for the time, it is not syncing with the host time but with active directory.

I can tell that the time is slowly losing time versus the actual time as minutes pass.

I was wondering because 4 vCPUs had been converted over in the p2v that the machine is having issues with the multiple CPUs assigned to the older Windows 2000 server.
VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017
Commented:
That is correct, Win2k is 10ms, later OS are 1ms.

Do you need 4 vCPUs? The more vCPUs you have can cause issues in the VM, because of the vSMP scheduing. It could slow the VM down.

Often, P2V conversion, VMware Converter, "sees" you had four cores in the physical, and allocates four vCPU in the virtual, these may be unnecessary.

http://www.vmware.com/files/pdf/perf-vsphere-cpu_scheduler.pdf

Author

Commented:
Yes. 10ms is Windows 2003 standard ping time.

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