Title :
An IEEE-1588 compatible RADclock
Author :
Davis, Michael H. ; Villain, Benjamin ; Ridoux, Julien ; Orgerie, Anne-Cecile ; Veitch, Darryl
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Melbourne, Melbourne, VIC, Australia
Abstract :
The RADclock is an open source software clock that is highly robust to latency variability. A limitation up to now has been that it could only be used with NTP servers, and was unable to take advantage of IEEE-1588 enabled devices, including PTP masters and NICs with hardware timestamping. This paper benchmarks an early implementation of PTP support for RADclock, with and without hardware timestamping. We evaluate performance under both nominal and stressed conditions against alternative software clients ptpd and timekeeper and find that it compares very well.
Keywords :
IEEE standards; atomic clocks; client-server systems; network servers; performance evaluation; protocols; public domain software; IEEE-1588 compatible RADclock; IEEE-1588 enabled devices; NIC; NTP servers; PTP support; hardware timestamping; latency variability; open source software clock; performance evaluation; software client ptpd; software client timekeeper; Clocks; Delay; Hardware; Linux; Servers; Stress; Synchronization; IEEE 1588; RADclock; latency; ptpd; software clocks; timekeeper;
Conference_Titel :
Precision Clock Synchronization for Measurement Control and Communication (ISPCS), 2012 International IEEE Symposium on
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4577-1714-7
DOI :
10.1109/ISPCS.2012.6336624
