[ntp:questions] Nice fanless high-perf NTP server: Fitlet!

Terje Mathisen terje.mathisen at tmsw.no
Thu Jan 15 21:46:49 UTC 2015

Rob wrote:
> Terje Mathisen <terje.mathisen at tmsw.no> wrote:
>> http://linuxgizmos.com/tiny-fanless-mini-pc-runs-linux-on-quad-core-amd-soc/
>> This little guy starts at $129 and includes a serial port which should
>> make it trivial to attach a Sure GPS board.
>> With a dual or quad 64-bit CPU, both SATA and SD storage connectors and
>> versions that support multiple Gbit/s Ethernet ports, it would seem to
>> be a nice NTPD startum 1 server.
> First I would verify if it really runs to microsecond accuracy, at least
> when you require that.  My experience with small computers running NTP
> synced to PPS that they have a tendency to be 1-3 magnitudes worse at
> timing stability, probably because of the lack of a sufficiently fast
> and accurate timing counter.

Did you check the link?

This is a full 64-bit dual/quad core x86-64 PC!
> Of course, it could still be good enough when you want to use it as a
> network time server.  It wasn't good enough for my co-channeling software
> that requires the clock to be accurate within a few microseconds.
> Intel CPU driven 64-bit PC systems have no problem with that.

AMD instead of Intel, but yes.


- <Terje.Mathisen at tmsw.no>
"almost all programming can be viewed as an exercise in caching"

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