[ntp:questions] Antwort: Re: Meinberg software running under Vista/Windows 2008

David Woolley david at ex.djwhome.demon.invalid
Wed Jul 6 21:56:16 UTC 2011

Radu.Popa at technomatic.de wrote:
> Ok,, but windows time server would synchronize according to the parameters 
> I set in the registry. Can I do the same with NTP? I mean can I "force" it 
> to update the system clock as soon as it sees it's offset? In my config 

No, and nor would it be a sensible thing to do.  NTP will not step until 
  both a sanity check timer (default 15 minutes) has expired and enough 
sample intervals have passed to get four or five samples consistent with 
the new time.

> file I have set the polling interval at 16 seconds, iburst. The servers in 
> question are mission critical machines and have to be synced all the time. 
> Unfortunately for this task the windows time service is not accurate.

Nor would ntpd be, if it behaved like this.  I should, however, point 
out that w32time is far from NTP compliant unless you change most of its 
registry settings, and even if the software clock has good time on 
Windows, there will still be quite a bit of jitter in timing of real 
world events by applications.   In any case, Windows is a poor platform 
for timing critical applications.

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