[ntp:questions] Another invalid leap second

unruh unruh at invalid.ca
Wed Jul 3 19:49:43 UTC 2013


On 2013-07-03, David Taylor <david-taylor at blueyonder.co.uk.invalid> wrote:
> On 03/07/2013 15:44, unruh wrote:
> []
>> I think we need to know who the OP has as his ntp servers. And if it is
>> pool, whether he can reconstruct who he was using (peers log file?)
>> should windows ports even be allowed in the pool given their lousy
>> behaviour as time machines.
>
> Windows-8 allows you to make quite reasonable stratum-1 servers (and 
> earlier versions are not too bad either with the various enhancements 
> made by Dave Hart and others).  Here's the offset for one Windows-8 system:
>
>    http://www.satsignal.eu/mrtg/stamsund_ntp_2.html
>
> and with a greater resolution:
>
>    http://www.satsignal.eu/mrtg/stamsund_ntp_40.html

OK. looks like about an 8us standard deviation, which is not bad. 
strange that it would have drifted by about that over the past few
months. The spread  is at about what I get for stratum 2 chrony machines on my
network fed off a stratum 1 gps driven chrony machine. 




>
> More than good enough for serving others across the Internet, even if 
> not up to FreeBSD or Linux capabilities, and /much/ better than 
> stratum-2 or higher servers.



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