[ntp:questions] best gps receiver for time synchronization
Richard B. Gilbert
rgilbert88 at comcast.net
Wed Mar 11 15:07:55 UTC 2009
David J Taylor wrote:
> David Woolley wrote:
>> You won't get millisecond accuracy on Windows. Although the software
>> clock can be disciplined to better than a millisecond, applications
>> can only read to one tick, which is 10ms by default and 1ms with the
>> fastest multi-media timers (which risks lost ticks).
> David, do you have a reference for your "risks lost ticks" statement as
> applied to Windows?
ISTR that there have been previous references in this newsgroup.
Specifically, EIDE disk drivers can mask or disable interrupts for a
period long enough to cause a "lost tick". I believe the group is
archived somewhere. . . .
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