My experience is thus:

The misbehavior of NTP on a VM will happen "when you care most". When
the host is under resource constraints, clock cycles will be stolen from
some guests so that other more demanding guests can have them.

D

On 4/4/2016 12:18 PM, Jeremy Charles wrote:
>
> I’m seeing all sort of documentation about how it’s not a great idea
> to use a VM as an NTP server due to how sketchy time tracking is
> within a VM.
>
>  
>
> My supervisor directed me to try it anyway.  He feels that our
> existing NTP servers are too old and need to be replaced, and he wants
> to replace them with VMs rather than physical servers.
>
>  
>
> I’m not seeing any difference in behavior between the two existing
> physical NTP servers and the VM that I set up to test as an NTP server.
>
>  
>
> Thoughts?
>
>  
>
> ==
>
> Jeremy Charles
>
> Epic’s Computer and Technology Services Division
>
> jchar...@epic.com
>
> 608-271-9000
>
>  
>
>
>
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