Re: [ntp:questions] NTP absolute accuracy?

2009-10-30 Thread David J Taylor
"Unruh" <> wrote in message news:34jgm.50898$ph1.36...@edtnps82... [] > Note that chrony will give you a factor of 2 or three improvement over > ntp in the errors, assuming that the roundtrip is equally split on > Linux or BSD. For those without wide-bandwidth academic connections - those folks o

Re: [ntp:questions] NTP 4.2.5p239-RC Released

2009-10-30 Thread Harlan Stenn
>>> In article , David Woolley >>> writes: David> Could I suggest limiting release candidates to one a week. Very few David> people will have time to deal with them in less than about a week. As others have said, you are free to deal with these, or not, as you choose. The goal here is to get

[ntp:questions] Small cheap low power systems

2009-10-30 Thread Hal Murray
>Or one could get a plug computer like http://www.tonidoplug.com and >use a GPS over USB, which works quite well as David proved. I myself >am tempted at one such plug computer just for the geek factor! :-) Thanks. $99 makes it interesting. I poked around a bit but did't find what I'm looking

Re: [ntp:questions] NTP absolute accuracy?

2009-10-30 Thread Unruh
"Richard B. Gilbert" writes: >Juyong Do wrote: >> Hi, >> >> Does anyone know any survey or paper measuring absolute time accuracy over >> NTP? I saw statistics about offsets, RTT, and dispersion but am not sure how >> well those parameters reflect or are correlated with absolute accuracy of >

Re: [ntp:questions] NTP absolute accuracy?

2009-10-30 Thread Richard B. Gilbert
Juyong Do wrote: > Hi, > > Does anyone know any survey or paper measuring absolute time accuracy over > NTP? I saw statistics about offsets, RTT, and dispersion but am not sure how > well those parameters reflect or are correlated with absolute accuracy of > each NTP servers and clients. > > T

Re: [ntp:questions] NTP 4.2.5p239-RC Released

2009-10-30 Thread Steve Kostecke
On 2009-10-30, David J Taylor wrote: > Some get NNTP messages, others e-mail from the portal. The release announcement routing is: announce@ mailing list -> questions@ mailing list -> news-group -- Steve Kostecke NTP Public Services Project - http://support.ntp.org/

Re: [ntp:questions] NTP 4.2.5p239-RC Released

2009-10-30 Thread David J Taylor
"E-Mail Sent to this address will be added to the BlackLists" wrote in message news:hcf9cc$24...@news.eternal-september.org... > David J Taylor wrote: >> perhaps those who don't want to keep them can use the >> Delete key? > ^W ^W Kill File Or whatever. Some get NNTP messages, others e-mail

Re: [ntp:questions] NTP 4.2.5p239-RC Released

2009-10-30 Thread E-Mail Sent to this address will be added to the BlackLists
David J Taylor wrote: > perhaps those who don't want to keep them can use the > Delete key? ^W ^W Kill File -- E-Mail Sent to this address will be added to the BlackLists. ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/ma

Re: [ntp:questions] reference Clock drivers kernel or user space

2009-10-30 Thread Dave Hart
Reference clock drivers are compiled into ntpd and run in the ntpd process, in user mode, though typically with root privileges. See ntpd/refclock_*.c in the distribution. Cheers, Dave Hart ___ questions mailing list questions@lists.ntp.org https://list

Re: [ntp:questions] NTP 4.2.5p239-RC Released

2009-10-30 Thread Steve Kostecke
On 2009-10-30, David Woolley wrote: > I'd deduce from the large number of recent "release candidates" that the > code is actually some way from being ready to release. You may wish to view the actual diffs between the Release Candidates instead of merely "speculating". I've created a handy sho

[ntp:questions] reference Clock drivers kernel or user space

2009-10-30 Thread Raptor Victor
Hi I need some pointers regarding the reference clock drivers. I need to know if these drivers are implemented in user space or kernel space. I at least know from documentation that how ntp adjusts clock is in kernel space to carry out clock tinkering in a quick fashion. However, are the refclock

Re: [ntp:questions] Running two ntpd systems in parallel

2009-10-30 Thread Paul Fleischer
2009/10/17 Dave Hart : > On Mon, Sep 14, 2009 at 11:23 AM, Paul Fleischer wrote: > I would like to see ntpd support unprivileged operation for testing > purposes, including using a local port > 1024.  The approach I have > been considering is adding a "port" option to the association commands > l

[ntp:questions] Use of GPSD and redundant 1 PPS sources (mobile comm center)

2009-10-30 Thread John K. Scoggin
Hello all.  I am building a stratum 1 timing source as part of my Mobile Communications Unit 37 project  here in Delaware.  I have mounted a Garmin GPS18 LVC receiver on the vehicle's roof along with building the 1 PPS level converter as described in this web page  and providing TOD and PP

Re: [ntp:questions] NTP 4.2.5p239-RC Released

2009-10-30 Thread David J Taylor
"David Woolley" wrote in message news:hce9je$n4...@news.eternal-september.org... > Could I suggest limiting release candidates to one a week. Very few > people will have time to deal with them in less than about a week. > > I'd deduce from the large number of recent "release candidates" that th

Re: [ntp:questions] NTP 4.2.5p239-RC Released

2009-10-30 Thread Richard B. Gilbert
David Woolley wrote: > Could I suggest limiting release candidates to one a week. Very few > people will have time to deal with them in less than about a week. > > I'd deduce from the large number of recent "release candidates" that the > code is actually some way from being ready to release.

Re: [ntp:questions] NTP 4.2.5p239-RC Released

2009-10-30 Thread Dave Hart
On Fri, Oct 30, 2009 at 8:54 AM, David Woolley wrote: > Could I suggest limiting release candidates to one a week. Please, suggest away :) > Very few > people will have time to deal with them in less than about a week. Such folks should pick up the latest RC once a week, then. Meanwhile, those

Re: [ntp:questions] NTP 4.2.5p239-RC Released

2009-10-30 Thread David Woolley
Could I suggest limiting release candidates to one a week. Very few people will have time to deal with them in less than about a week. I'd deduce from the large number of recent "release candidates" that the code is actually some way from being ready to release. ___

[ntp:questions] NTP 4.2.5p239-RC Released

2009-10-30 Thread NTP Public Services Project
Redwood City, CA - 2009/10/30 - The NTP Public Services Project (http://support.ntp.org/) is pleased to announce that NTP 4.2.5p239-RC, a Release Candidate of the NTP Reference Implementation from the NTP Project, is now available at http://www.ntp.org/downloads.html and http://support.ntp.org/down