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

David J Taylor david-taylor at blueyonder.co.not-this-bit.nor-this-part.uk.invalid
Mon Dec 5 09:15:37 UTC 2005

Danny Mayer wrote:
> David J Taylor wrote:
>> Tom,
>> 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?
> Danny

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?

- where to obtain it?  Given that:

  - Terje's most recent version is: ntp-dev-4.2.0a-20040319-nt.zip.

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

  - I wouldn't trust compiling it myself.


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