[aklug] Re: ntp and freebsd?

Dr. Anderson's claim is built on the idea that the FreeBSD kernel
supports nanosecond time precision. I do not know enough about it to
verify whether or not Linux is truly lacking in nanosecond-level timing
for this purpose. I found multiple people saying that online, but no
authoritative source.

With Stratum 1, you're building an NTP server directly attached to a
high-precision time source, for which millisecond precision isn't
precise enough, so just running an NTP daemon isn't sufficient for what
he's trying to do.

Part of the reason that FreeBSD is so well-equipped for high-precision
time is because a famous FreeBSD guy, Poul-Henning Kamp, is a huge time
geek, and he did a bunch of work to make FreeBSD recision-time-friendly.
He notices when *GPS satellites* have time that's off by less than a
millisecond.

http://people.freebsd.org/~phk/

Royce

Marc Grober wrote, on 3/15/2012 4:42 PM:
> Say what? While I love to see folk explore unix, I can't believe that most l=
> inux distros don't include xntp. What am I missing?
>
>
>
> On Mar 15, 2012, at 4:32 PM, techno curmudgeon <technocurmudgeon@gmail.com> w=
> rote:
>
>> Does using freebsd for ntp have any core advantage other than that?
>> Anyone have any knowledge or thoughts on this? What am I missing
>> here?
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Received on Thu Mar 15 18:50:06 2012