[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [gpsd-dev] Clarifications needed for the time-service HOWTO
From: |
Eric S. Raymond |
Subject: |
Re: [gpsd-dev] Clarifications needed for the time-service HOWTO |
Date: |
Thu, 24 Oct 2013 15:49:49 -0400 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
Hal Murray <address@hidden>:
> > > .Summary of typical accuracy
> > > | Stratum 2 NTP time | ±100mSec
> > > | Stratum 3 NTP time | ±200mSec
>
> > These figures are from the End Run Technology page on Stratum 1 (cited). I
> > have been unable to find another public source that is willing to commit
> > itself to an accuracy bound. If you know of one or more, by all means point
> > us at them; they'll go in the references.
>
> I'd call that BS. The stratum is much less important than other things. The
> primary consideration is how well the servers are chosen, either by luck or
> skill.
You said you thought 10mSec for Statum 2 is more typical. So did I, then
Gary changed that to 100mSec. I'm still looking for actual measurements.
Gary, what was your source?
--
<a href="http://www.catb.org/~esr/">Eric S. Raymond</a>
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, (continued)
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Miroslav Lichvar, 2013/10/23
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Eric S. Raymond, 2013/10/23
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Gary E. Miller, 2013/10/23
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Hal Murray, 2013/10/23
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Gary E. Miller, 2013/10/23
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Eric S. Raymond, 2013/10/23
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Hal Murray, 2013/10/23
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Hal Murray, 2013/10/23
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO,
Eric S. Raymond <=
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Gary E. Miller, 2013/10/24
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Eric S. Raymond, 2013/10/24
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Gary E. Miller, 2013/10/24
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Harlan Stenn, 2013/10/24
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Hal Murray, 2013/10/25
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Harlan Stenn, 2013/10/25
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Eric S. Raymond, 2013/10/25
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Greg Troxel, 2013/10/24
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Harlan Stenn, 2013/10/24
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Eric S. Raymond, 2013/10/25