[ntp:questions] Timekeeping broken on Windows XP with multimedia timer enabled (-M option)

Richard B. Gilbert rgilbert88 at comcast.net
Mon Jan 25 15:10:55 UTC 2010

David J Taylor wrote:
> "Evandro Menezes" <evandro at mailinator.com> wrote in message 
> news:b3618b89-24cd-44a9-8e25-78887d18e710 at f12g2000yqn.googlegroups.com...
>> On Jan 21, 2:52 pm, "David J Taylor" <david-tay... at blueyonder.delete-
>> this-bit.and-this-part.co.uk.invalid> wrote:
>>> BTW: I still have systems running which are older than Core2, one 
>>> still has
>>> an Intel PIII 550MHz (and keeps good time as a stratum-1 server with
>>> Windows 2000).
>> I guess that it would qualify for a low-power processor these days, so
>> who cares about managing its power and messing with its TSC?
>> ;-)
> Low-power in what sense?  Work done, or watts consumed?  <G>
> I would still very much like to have a low-powered (watts) system 
> running NTP perhaps with a good (for timekeeping) FreeBSD version.  
> Something the size of a home router, with a serial port for the GPS.  
> Looking for better than (say) ten microsecond accuracy.  About US $100-150.
> Cheers,
> David

I think that that the closest you can come "off the shelf" would be a 
Laptop.  You are not likely to find one in that price range.

PHK has created GPS clocks using a "single board computer" and a GPS 
receiver.  I don't know what it cost him.  See:

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