Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll7

2013-12-02 Thread Martin Burnicki
Ed, Mischanko, Edward T wrote: Martin, Reading your reply, it sounds like you understand and somewhat confirm this bug. I *think* I have observed something like this some time ago. I agree this may be a Windows XP only bug. I'm not sure whether it is. We'll have to find this out, but

[ntp:questions] I need help about TIME SERVER ADDRESS

2013-12-02 Thread Jhake Jacobo
I need an IP address of FREE server time.. tnx ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] I need help about TIME SERVER ADDRESS

2013-12-02 Thread mike cook
ntp.org is your friend. Le 2 déc. 2013 à 14:29, Jhake Jacobo a écrit : I need an IP address of FREE server time.. tnx ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] I need help about TIME SERVER ADDRESS

2013-12-02 Thread David Woolley
On 02/12/13 13:29, Jhake Jacobo wrote: I need an IP address of FREE server time.. tnx Ask your ISP. They should provide one. They are typically called ntp or ntp1.yourisp.net If this is for personal, low volume use, the answer should be obvious from a basic examination of the

Re: [ntp:questions] I need help about Time Server DNS Names

2013-12-02 Thread Brian Inglis
Then pool.ntp.org is your best friend! On 2013-12-02 07:39, mike cook wrote: ntp.org is your friend. Le 2 déc. 2013 à 14:29, Jhake Jacobo a écrit : I need an IP address of FREE server time.. tnx -- Take care. Thanks, Brian Inglis ___ questions

Re: [ntp:questions] I need help about Time Server DNS Names

2013-12-02 Thread Brian Inglis
Then pool.ntp.org is your best friend! On 2013-12-02 07:39, mike cook wrote: ntp.org is your friend. Le 2 déc. 2013 à 14:29, Jhake Jacobo a écrit : I need an IP address of FREE server time.. tnx -- Take care. Thanks, Brian Inglis ___ questions

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll7

2013-12-02 Thread David Lord
Martin Burnicki wrote: Ed, Mischanko, Edward T wrote: Martin, Reading your reply, it sounds like you understand and somewhat confirm this bug. I *think* I have observed something like this some time ago. I agree this may be a Windows XP only bug. I'm not sure whether it is. We'll have

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll7

2013-12-02 Thread Martin Burnicki
David Lord wrote: I had maxpoll set at 10 when I first setup my network but sometimes at that poll rate combined with daily temperature variations offsets would gradually increase both in +ve and -ve directions. This could clearly be seen in mrtg graphs. Solution was to reduce maxpoll to 7 or 8.

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll7

2013-12-02 Thread David Woolley
On 02/12/13 15:35, Martin Burnicki wrote: From my understanding it would be better if ntpd polled in shorter intervals to detect if the frequency drift is constant, or not. If it is not it could decrease the polling interval to react faster on frequency changes. It already oversamples and

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll7

2013-12-02 Thread Brian Inglis
On 2013-12-02 05:02, Martin Burnicki wrote: Ed, Mischanko, Edward T wrote: Martin, Reading your reply, it sounds like you understand and somewhat confirm this bug. I *think* I have observed something like this some time ago. I agree this may be a Windows XP only bug. I'm not sure

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll7

2013-12-02 Thread David Taylor
On 02/12/2013 16:24, Brian Inglis wrote: [] When I ran current stable under Win 7 with only network servers I found I had to drop minpoll to 4 (default is 6) so iburst would quickly get a good offset and pull drift down from initial out-to-lunch estimate compared to drift file contents. Once

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll7

2013-12-02 Thread unruh
On 2013-12-02, Martin Burnicki martin.burni...@meinberg.de wrote: David Lord wrote: I had maxpoll set at 10 when I first setup my network but sometimes at that poll rate combined with daily temperature variations offsets would gradually increase both in +ve and -ve directions. This could

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll7

2013-12-02 Thread Harlan Stenn
Martin, I think the problem here is that folks are setting a high floor for minpoll and then noticing the value they picked is too high. ntpd will, I believe, increase the poll interval when that seems like a safe thing to do. Left to its own devices, ntpd will notice that a

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll7

2013-12-02 Thread Harlan Stenn
Brian Inglis writes: When I ran current stable under Win 7 with only network servers I found I had to drop minpoll to 4 (default is 6) so iburst would quickly get a good offset and pull drift down from initial out-to-lunch estimate compared to drift file contents. This is strange - iburst

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll7

2013-12-02 Thread David Lord
Martin Burnicki wrote: David Lord wrote: I had maxpoll set at 10 when I first setup my network but sometimes at that poll rate combined with daily temperature variations offsets would gradually increase both in +ve and -ve directions. This could clearly be seen in mrtg graphs. Solution was to

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll7

2013-12-02 Thread unruh
On 2013-12-02, David Lord sn...@lordynet.org wrote: Martin Burnicki wrote: My server with Sure gps/pps has offset below 3 us other than when nightly cron jobs give a couple of 35 us spikes. From loop_summary over 7 days, typical range for rms offset is 3.9-6.1. Over 7 days my four pool

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll7

2013-12-02 Thread Brian Inglis
On 2013-12-02 13:10, Harlan Stenn wrote: Brian Inglis writes: When I ran current stable under Win 7 with only network servers I found I had to drop minpoll to 4 (default is 6) so iburst would quickly get a good offset and pull drift down from initial out-to-lunch estimate compared to drift

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll7

2013-12-02 Thread Brian Inglis
On 2013-12-02 10:07, David Taylor wrote: On 02/12/2013 16:24, Brian Inglis wrote: [] When I ran current stable under Win 7 with only network servers I found I had to drop minpoll to 4 (default is 6) so iburst would quickly get a good offset and pull drift down from initial out-to-lunch estimate

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll7

2013-12-02 Thread David Lord
unruh wrote: On 2013-12-02, David Lord sn...@lordynet.org wrote: Martin Burnicki wrote: My server with Sure gps/pps has offset below 3 us other than when nightly cron jobs give a couple of 35 us spikes. From loop_summary over 7 days, typical range for rms offset is 3.9-6.1. Over 7 days my four

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll7

2013-12-02 Thread Mischanko, Edward T
David, It appears that you may misunderstand my observation? Raspberry-Pi servers seem to be economical and functional as NTP servers, but how well do they work in the network configuration that I am using. Yes, there are things that I can do to have a more accurate server; but how well

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll7

2013-12-02 Thread Mischanko, Edward T
Yes, it is strange. My point as a software tester, and user, is that if software doesn't work as documented or intended, the why needs to be discovered and addressed with a solution that matches documentation. Ed From:

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll7

2013-12-02 Thread unruh
On 2013-12-03, David Lord sn...@lordynet.org wrote: unruh wrote: On 2013-12-02, David Lord sn...@lordynet.org wrote: Martin Burnicki wrote: My server with Sure gps/pps has offset below 3 us other than when nightly cron jobs give a couple of 35 us spikes. From loop_summary over 7 days,