[ntp:questions] Re: Windows timekeeping - sudden degradation- why?

Danny Mayer mayer at gis.net
Tue Dec 6 03:04:28 UTC 2005

David J Taylor wrote:
> Danny Mayer wrote:
>>David J Taylor wrote:
>>>Many thanks for your thoughtful suggestions.
>>>It looks as if the drift is OK, at -64.911, but I will keep an eye
>>>on it. Here is the full output just in case there's something else
>>>glaringly obvious:
>>>E:\>ntpq -c "rv 0" odin
>>>status=46b4 leap_add_sec, sync_ntp, 11 events, event_peer/strat_chg,
>>>version="ntpd 4.2.0 fr Oct 17 8:49:33 2003 (1)", processor="unknown",
>>>system="WINDOWS/NT", leap=01, stratum=3, precision=-19,
>>>rootdelay=62.583, rootdispersion=125.847, peer=62645,
>>>refid=, reftime=c73d5d1a.a4d239b4  Sun, Dec  4 2005
>>>12:18:34.643, poll=7, clock=c73d5f43.da3d1265  Sun, Dec  4 2005
>>>12:27:47.852, state=4, offset=18.583, frequency=-64.911,
>>>jitter=10.097, stability=0.028
>>Well the version is rather ancient. Time to trade up?
> OK, I accept that in principle, but:
> - is there a known error in that version which would cause it to become 
> unstable?  As the software had been OK until last Friday, why should it 
> suddenly become not OK?  Would the arrival of a leap second indicator 
> cause instability in one copy and yet other PCs continue to function 
> correctly?  It doesn't sound right to me.
> - which version would you suggest using?

The one that I have running, of course! Unfortunately I haven't finished
testing it. It fixes a number of issues that the Meinberg folk have

> - where to obtain it?

It's on my disk of course.

>  Given that:
>   - Terje's most recent version is: ntp-dev-4.2.0a-20040319-nt.zip.
That is a bit old.

>   - Meinberg's is a ready-to-install package, whereas I just want .exe 
> files I can copy - the installation is already done.

Well I have an installer too even though it's not ready for release and
it creates a special account to run as a service with restricted
privileges. You can, of course just copy the files to the right places.

>   - I wouldn't trust compiling it myself.
You do a good job of it!


> Cheers,
> David 
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