Interesting thanks. I was wondering if it's worth for me to upgrade to RPI
4........ Have you also managed to measure the connection jitter as well?

-----Original Message-----
From: time-nuts <time-nuts-boun...@lists.febo.com> On Behalf Of David J
Taylor via time-nuts
Sent: Friday, 8 November, 2019 01:19
To: Time-nuts mailing list <time-nuts@lists.febo.com>
Cc: David J Taylor <david-tay...@blueyonder.co.uk>
Subject: [time-nuts] Raspberry Pi 4B Ethernet delay

I did some very simple tests to see how the RPi 4B with its better
Ethernet connection compared with the earlier model B (rather old!).  My
test configuration isn't good, as there are a couple of switches between
the two RPi cards and the monitoring PC:

  https://www.satsignal.eu/ntp/BBB-vs-RPi.html#update

but the summary is:  the model B reports 0.464 ms mean delay, and the
model 4B reports 0.254 ms, so 0.21 ms better.

Cheers,
David
--
SatSignal Software - Quality software for you
Web: http://www.satsignal.eu
Email: david-tay...@blueyonder.co.uk
Twitter: @gm8arv


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