[time-nuts] A (slightly) different apu2 question

Paul tic-toc at bodosom.net
Thu Nov 17 10:41:20 EST 2016

On Thu, Nov 17, 2016 at 9:42 AM, Wojciech Owczarek <wojciech at owczarek.co.uk>

> ... waste what's
> left by then retransmitting it via NTP with software timestamping. I am not
> saying that there is anything wrong with NTP, just that software packet
> transmission and receipt timestamps ruin both precision and accuracy.

NTP does not require softstamps.  NTP can be (and I believe it has been in
a product) modified to use "PTP" hardware (hardstamps) and  reasonably
current releases can run with "drivestamps" (sampled in the NIC driver)
between cooperating endpoints.

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