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

Joseph Gwinn joegwinn at comcast.net
Thu Oct 21 13:05:51 UTC 2010

In article <i9oo4r$5a6$1 at news.eternal-september.org>,
 "David J Taylor" <david-taylor at blueyonder.co.uk.invalid> wrote:

> "David Woolley" <david at ex.djwhome.demon.invalid> wrote in message 
> news:i9omts$7sh$3 at news.eternal-september.org...
> > Richard B. Gilbert wrote:
> >
> >> Also note that Windows' clock "ticks" every 17 milliseconds.
> >>
> >
> > Only when not running ntpd.  ntpd forces the use of multimedia timers.
> .. and not when running Windows-7 and possibly Vista, when it's just under 
> 1 millisecond, and NTP uses the native timers.

The platforms in question are running Windows XP, not Vista or Windows 
7.  How does this change the answer?

By the way, the hardware is a collection of 8-core HP Z800 workstations 
connected together by copper gigabit ethernet links and local hub, with 
one link going via the company network to the GPS network time server.

Joe Gwinn

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