[ntp:questions] best gps receiver for time synchronization
David J Taylor
david-taylor at blueyonder.not-this-part.nor-this.co.uk.invalid
Wed May 13 16:24:10 UTC 2009
David Woolley wrote:
> David J Taylor wrote:
>> - with operating system calls, the main clock can be read with a
>> precision of 1 millisecond (although the ticks may be only 15
>> milliseconds). There are higher resolution counters which can also
>> be read.
> The architectural resolution is much higher than this. I think you
> are seeing actual 1ms clock ticks, as the result of ntpd forcing the
> use of multi-media timer mode.
David, yes the hardware is better, but I was asked what the system clock
call was and the structure it returns only goes down to milliseconds.
I'm not "seeing" anything.
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