PC based precision timing without GPS

A highly accurate monitoring solution for active network measurement is provided without the need for GPS, based on an alternative software clock for PC's running Unix. With respect to clock rate, it's performance exceeds common GPS and NTP synchronized software clock accuracy. It is based on the TSC register counting CPU cycles and offers a resolution of around 1ns, a rate stability of 0.1PPM equal to that of the underlying hardware, and a processing overhead well under 1

• Type: Journal
• Year: 2002
• Where: SIGMETRICS
• Authors: Attila Pásztor, Darryl Veitch
• Keywords: Clock, Hardware, Network Measurement, SIGMETRICS 2002, Software Clock