Re: [ntp:questions] What level of timesynch error is typical on WinXP?

On Fri, Oct 22, 2010 at 05:18 UTC, David J Taylor wrote: > it seems to me that the convergence is no better on PC Narvik (4.2.7p58) > than on PC Bacchus (4.2.6p2).  I'm running with exactly the same parameters > as the earlier version having simply replaced all the binaries - are any new > settings

Re: [ntp:questions] What level of timesynch error is typical onWinXP?

"Dave Hart" wrote in message news:aanlktik1pda81pqmx2jntgv9ays6h7haht3+zelf+...@mail.gmail.com... [] No new settings required. You might have a hard time picking out the difference using 5-minute samples of mrtg and the hardcoded Y axis. Looking at loopstats graphs, I would expect you to see l

Re: [ntp:questions] What level of timesynch error is typical on Win XP?

In article , "David J Taylor" wrote: > "Joseph Gwinn" wrote in message > news:joegwinn-ee48fd.22434621102...@news.giganews.com... > > In article , > > "David J Taylor" wrote: > [] > >> You might consider providing a local, more precise NTP server with > >> something like a small, fan-less Int

[ntp:questions] [ntp:announce] NTP 4.2.6p3-RC5 Released

Redwood City, CA - 2010/10/22 - The NTP Public Services Project (http://support.ntp.org/) is pleased to announce that NTP 4.2.6p3-RC5, 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/downl

Re: [ntp:questions] What level of timesynch error is typical onWinXP?

On 10/22/2010 6:39 AM, David J Taylor wrote: "Dave Hart" wrote in message news:aanlktik1pda81pqmx2jntgv9ays6h7haht3+zelf+...@mail.gmail.com... [] No new settings required. You might have a hard time picking out the difference using 5-minute samples of mrtg and the hardcoded Y axis. Looking at l

Re: [ntp:questions] What level of timesynch error is typical onWinXP?

"Richard B. Gilbert" wrote in message news:hvgdny984a8wclzrnz2dnuvz_tcdn...@giganews.com... [] AFAIK, *all* versions of NTPD require several hours to reach a stable state and a close approximation to the correct time. NTPD was designed for operation 24x365. Every time you shut down you will

Re: [ntp:questions] What level of timesynch error is typical on Win XP?

On Oct 21, 10:00 am, "David J Taylor" wrote: > Windows can run NTP at real-time priority, if you give the NTP user that > right.  Normal user processes will not then pre-empt NTP. Yes, except that Windows ends up raising the effective priority of system tasks that supersede NTP's effective priori

Re: [ntp:questions] What level of timesynch error is typical on Win XP?

tay wrote: > Windows can run NTP at real-time priority, if you give the NTP user > that right.  Normal user processes will not then pre-empt NTP. Does Microsoft Windows support memory locking? -- John Hasler jhas...@newsguy.com Dancing Horse Hill Elmwood, WI USA

Re: [ntp:questions] What level of timesynch error is typical on Win XP?

Does Microsoft Windows support memory locking? -- John Hasler Memory can be allocated from non-paged-pool for use with device drivers, and that memory is locked. But I would need to read up to provide more information. Yes, a quick check says that both device drivers and Windows application

Re: [ntp:questions] What level of timesynch error is typical on Win XP?

"Evandro Menezes" wrote in message news:2dd44831-09a6-4cf5-ac15-acc8ef6b0...@t20g2000yqa.googlegroups.com... [] Yes, except that Windows ends up raising the effective priority of system tasks that supersede NTP's effective priority. Among the worst offenders, network DPCs and some disk DPCs wi

[ntp:questions] How the "peer candidate" is selected?

Hello, I'm so embarrassing with this stupid question but I'm not very comfortable with the "peer select algorithm" Let me try to explain: I've got one GPS stratum 1 server located in New York (172.17.200.100) and one GPS stratum 1 server located in London (172.17.100.100). in each datacenter a

Re: [ntp:questions] How the "peer candidate" is selected?

Hi, all-- On Oct 22, 2010, at 9:37 AM, pateretou Pateretou wrote: > Hello, > I'm so embarrassing with this stupid question but I'm not very comfortable > with the "peer select algorithm" > > Let me try to explain: > I've got one GPS stratum 1 server located in New York (172.17.200.100) and > on

Re: [ntp:questions] What level of timesynch error is typical on Win XP?

On Oct 22, 10:23 am, "David J Taylor" wrote: > That could explain why I see higher NTP jitter on a Windows system running > a USB network source (digital video data stream) than receiving a similar > data stream on a PCI card under either Windows XP or Windows-7.   Possibly, but USB, as a polled,

Re: [ntp:questions] What level of timesynch error is typical on Win XP?

"Evandro Menezes" wrote in message news:f13f950a-3168-4a11-ba09-f4d225e7b...@t13g2000yqm.googlegroups.com... On Oct 22, 10:23 am, "David J Taylor" wrote: That could explain why I see higher NTP jitter on a Windows system running a USB network source (digital video data stream) than receiving

Re: [ntp:questions] What level of timesynch error is typical on Win XP?

> From: "David J Taylor" > Date: Fri, 22 Oct 2010 20:43:01 +0100 > Sender: questions-bounces+oberman=es@lists.ntp.org > > > "Evandro Menezes" wrote in message > news:f13f950a-3168-4a11-ba09-f4d225e7b...@t13g2000yqm.googlegroups.com... > > On Oct 22, 10:23 am, "David J Taylor" > tay...@blu

Re: [ntp:questions] How the "peer candidate" is selected?

pateretou Pateretou wrote: I would like servers in london sync to the London GPS and servers in NY sync with the NY GPS (seems to be a coherent choice, isn't it?) They will all sync to both. The system peer is a figure head source, and used for some of the quality statistic, but the clock c

Re: [ntp:questions] What level of timesynch error is typical on Win XP?

David J Taylor wrote: Well, it may help the person who needs to run simulation software which is Windows-based, in that if timekeeping is very important to them, it suggests running Windows on a virtual machine running under an accurate FreeBSD host. I wonder whether that would provide any gr

Re: [ntp:questions] What level of timesynch error is typical on Win XP?

David Woolley writes: > If you want to run a Windows application on a platform with good > timing, you probably need run something line Wine, if that is still > being maintained. It certainly is. 1.3.5 was released Oct. 15. -- John Hasler jhas...@newsguy.com Dancing Hor