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

David J Taylor david-taylor at blueyonder.co.uk
Tue Mar 24 04:22:03 EDT 2015

From: Neil Schroeder

The other key key key item is make sure you hand build yourself a 3.14 or
.16 kernel.


Thanks, Neil.  I'm afraid I have neither the expertise nor the patience to 
do that, and to an extent this was intended to be an out-of-the-box 
comparison.  Doubtless adding a TCXO would improve performance as well, but 
I will leave that to someone else to try.

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 


SatSignal Software - Quality software written to your requirements
Web: http://www.satsignal.eu
Email: david-taylor at blueyonder.co.uk 

More information about the time-nuts mailing list