Hi
On Nov 10, 2014, at 1:59 AM, Poul-Henning Kamp p...@phk.freebsd.dk wrote:
In message 4cdc0090-dd4b-4380-acc1-40a80d3bc...@n1k.org, Bob Camp writes:
Hi
Here’s what I’m saying:
The NTP algorithm as it is written and as it is implemented results
in an output clock that does
On 11/09/2014 10:54 PM, Chris Albertson wrote:
On Sun, Nov 9, 2014 at 12:45 PM, Bob Camp kb...@n1k.org wrote:
Hi
The main point is that NTP picks *one* source from among it’s batch of
inputs and uses that. The ADEV of the output can be no better than the ADEV
of the output.
The statement
What you can do is to have a set of free-running oscillators, use them to
build a ensemble paper-clock average, which when weighing them against the
stability of the ensemble clock the individual stability will expose
itself, and that ensemble clock will have some weighted frequency, and the
Hi
The main point is that NTP picks *one* source from among it’s batch of inputs
and uses that. The ADEV of the output can be no better than the ADEV of the
output.
In the case of an ensemble of clocks combined with a better approach the ADEV
of the output can be better than the ADEV of the
On Sun, Nov 9, 2014 at 3:45 PM, Bob Camp kb...@n1k.org wrote:
The main point is that NTP picks *one* source
Not according to the documentation (since at least 2005). I'll admit to
not
having read the code for the primary algorithms.
___
time-nuts
On Sun, Nov 9, 2014 at 12:45 PM, Bob Camp kb...@n1k.org wrote:
Hi
The main point is that NTP picks *one* source from among it’s batch of
inputs and uses that. The ADEV of the output can be no better than the ADEV
of the output.
The statement above is not correct. NTP does not select just
HI
What is going on is that people are confusing the estimation process that is
used by the selection process (which does look at a lot of stuff) and how that
is described. They are then making the leap to the locking process, which is
something else altogether. It’s easy to see that this is
kb...@n1k.org said:
What is going on is that people are confusing the estimation process that is
used by the selection process (which does look at a lot of stuff) and how
that is described. ...
In this context, it's important to remember that there are 2 parameters
associated with the
On Sun, Nov 9, 2014 at 5:22 PM, Bob Camp kb...@n1k.org wrote:
What is going on is that people are confusing the estimation process that
is used by the selection process (which does look at a lot of stuff) and
how that is described. They are then making the leap to the locking
process, which
Hi
Here’s what I’m saying:
The NTP algorithm as it is written and as it is implemented results in an
output clock that does *not* improve when a number of very good clocks are
being used and the output is compared to the input. In that case and that case
alone, the system simply does what one
On Sun, Nov 9, 2014 at 6:18 PM, Bob Camp kb...@n1k.org wrote:
The NTP algorithm as it is written and as it is implemented results in an
output clock that does *not* improve when a number of very good clocks are
being used and the output is compared to the input. In that case and that
case
In message 4cdc0090-dd4b-4380-acc1-40a80d3bc...@n1k.org, Bob Camp writes:
Hi
Here’s what I’m saying:
The NTP algorithm as it is written and as it is implemented results
in an output clock that does *not* improve when a number of very
good clocks are being used [...]
The crucial word
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