On 16/06/2020 17:11, William Unruh wrote: []
The question then is how rapidly the system can respond to an interrupt,. This at least used to be of the order of a microsecond. Also, how logd does it take to read the clock with the kernel gettime routines. They all limit the accuracy of your clock using gps refclock > (and also how long the wire is between the gps unit and the computer)
I quick it more a question of variance rather than the absolute time, but I agree with your comment. Again, with only microsecond reporting and today's processors it's difficult to measure.
To the latter, cable length, well under 5 nanoseconds! https://store.uputronics.com/index.php?route=product/product&path=64&product_id=84 -- Cheers, David Web: http://www.satsignal.eu _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
