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Subject: Re: What IS the right NTP behaviour ?
From: dirkx@webweaving.org
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Date: Wed, 23 Sep 2015 21:33:50 +0200
Cc: Tim Kientzle <tim@kientzle.com>, hackers@freebsd.org,
 Poul-Henning Kamp <phk@freebsd.org>
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To: Brandon Vincent <Brandon.Vincent@asu.edu>
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> On 23 Sep 2015, at 20:04, Brandon Vincent <Brandon.Vincent@asu.edu> =
wrote:
>=20
> On Wed, Sep 23, 2015 at 10:35 AM, Tim Kientzle <tim@kientzle.com> =
wrote:
>> One concern I keep running into:  Using NTP in VMs that are =
frequently suspended/resumed.  Though I suppose this may be covered by =
your 'workstation' scenario (just step it after VM resume when you see =
the large skew).
>=20
> I would assume your hypervisor would sync the clock upon VM events. =
Does it not?

We have a fair number of problems; both with suspended VMs and moving =
VMs - the hypervisor does the right thing - but things like can still =
spot a step change; even backward.

Dw.=