Re: [chrony-users] kernel PPS troubleshooting

["Tomalak Geret'kal" <tom@xxxxxxxxx>]

On 28/11/2013 20:05, Bill Unruh wrote:
> On Thu, 28 Nov 2013, Tomalak Geret'kal wrote:
>
> > On 28/11/2013 19:11, Bill Unruh wrote:
> > >  Is this the nmea time or the PPS time?
> >
> > What is "PPS time"? PPS provides timing, not time.
>
> In my nomenclature, they are the same. PPS does supply 
> time but just the
> fractional seconds part of it. (Just as ntp supplies time 
> by only the fractional
> "centuries" part of it-- You probably would not argue that 
> ntp does not supply
> time just the timing.)
> >
It probably comes from the traditional notion of time as 
something useful to humans, i.e. something down to minutes 
or seconds at least but up to hours or days/months/years.

In the commercial world of timing sync (e.g. telecoms 
networks) we say timing vs time to differentiate the two, 
and do not allow sub-second timing to count as any 
indication of absolute "time", but I concede your point.

Tom

--
To unsubscribe email chrony-users-request@xxxxxxxxxxxxxxxxxxxx 
with "unsubscribe" in the subject.
For help email chrony-users-request@xxxxxxxxxxxxxxxxxxxx 
with "help" in the subject.
Trouble?  Email listmaster@xxxxxxxxxxxxxxxxxxxx.