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Date: Sat, 6 Oct 2018 20:43:03 +0200 (CEST)
From: Wojciech Puchar <wojtek@puchar.net>
To: Matthew Seaman <matthew@FreeBSD.org>
cc: freebsd-hackers@freebsd.org
Subject: Re: ntpd strange problem
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>> what should i look at to find a source of problem
>
> Is this a virtual machine or bare metal?   VMs tend to have a lot more 
bare metal.

>
> driftfile /var/db/ntpd.drift
>
> then ntpd will record how fast or slow the clock tends to run so it can 
> immediately account for that across restarts, rather than having to work it 
> out de-novo everytime ntpd gets restarted.
>
# cat /var/db/ntpd.drift
35.586

what else can i do?