On Tue, 10 Mar 2009 09:17:58 -0700 (PDT), jack wrote: > I cannot switch to Linux because my main application runs only on > Windows. It would take us a long time to port to Linux. > If I can get to millisecond accuracy, I'd be happy. > > Jack > > On Mar 10, 11:56 am, Dave Hart <[email protected]> wrote: >> On Mar 10, 3:44 pm, "Richard B. Gilbert" <[email protected]> >> wrote: >> >> > You might want to take a look at the work of Poul-Henning Kamp (PHK). >> > He used Soekris 4501 single board computers together with a GPS receiver >> > to make a highly accurate clock. This was long enough ago that most of >> > the hardware he used is no longer available new but it might give you >> > some ideas. >> >> Seconded. FreeBSD will give you better timekeeping than Windows. If >> the difference between a few microseconds and a few hundred >> microseconds is no problem, my recent Windows releases are fine. But >> if you're dedicating a small PC to the task, care about those >> fractions of a millisecond, and can manage FreeBSD, it's the gold >> standard for NTP. >> >> Cheers, >> Dave Hart FreeBSD is not Linux. Certainly not when talking timing. /hjj >
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