[ntp:questions] Win7: ntpd adjusting time backwards
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Null at BlackList.Anitech-Systems.invalid
Thu Dec 13 20:52:54 UTC 2012
Jeroen Mostert wrote:> BlackLists wrote:
>> ntpq -c "rv&0 precision"
>> should give a clue how close you can expect to get on
>> a given machine.
> I assume you mean 'ntpq -c "rv 0 precision"'.
> Your command gives me an error.
Yes, however it should work with the '&' on newer 4.2.7 flavors.
> I'm not sure that means much. On the physical machines
> I get precision=-10, which makes sense since the multimedia
> timer is on and the resolution of GSTAFT is 1 ms.
> On the virtuals, however, I get -19 (ntpd 4.2.6p5) and -20
> (ntpd 4.2.7p310).
> That may reflect the numerical precision of the interpolated
> clock, but that doesn't mean actually reading it with
> that precision is useful.
That Precision is supposed to represent the time it takes
to read the system clock.
So whatever that is, you shouldn't expect a application
to be able to "get time" more often.
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