[time-nuts] Comparing the BeagleBone Black & Raspberry Pi asNTP servers

Hal Murray hmurray at megapathdsl.net
Wed Mar 25 06:22:57 EDT 2015


david-taylor at blueyonder.co.uk said:
> I was really interested to see how much effect the extra Ethernet latency of
>  the Raspberry Pi added in a real-world scenario.  Thanks to Philip
> Gladstone, I have now discovered a way of significantly reducing that
> latency, so that the delay reported by NTP is reduced from ~0.51 to ~0.35
> milliseconds.

>   http://www.satsignal.eu/ntp/RaspberryPi-notes.html#EthernetLatency 

Thanks for the tip.  I did that to my R Pi and I see the same improvement in 
round trip time.

What I don't understand is why the time offset as measured by an outside 
system didn't change.  ??


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