Clock Synchronisation in Industry-standard Computer Hardware

Markus Peuhkuri; Antti Gröhn; Oskari Simola

3rd International ICST Conference on Testbeds and Research Infrastructures for the Development of Networks and Communities (TridentCom)

Research Article

Clock Synchronisation in Industry-standard Computer Hardware

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Cite: BibTeX Plain Text

@INPROCEEDINGS{10.1109/TRIDENTCOM.2007.4444668,
    author={Markus Peuhkuri and Antti Gr\o{}hn and Oskari Simola},
    title={Clock Synchronisation in Industry-standard Computer Hardware},
    proceedings={3rd International ICST Conference on Testbeds and Research Infrastructures for the Development of Networks and Communities (TridentCom)},
    proceedings_a={TRIDENTCOM},
    year={2010},
    month={5},
    keywords={},
    doi={10.1109/TRIDENTCOM.2007.4444668}
}

Markus Peuhkuri
Antti Gröhn
Oskari Simola
Year: 2010
Clock Synchronisation in Industry-standard Computer Hardware
TRIDENTCOM
IEEE
DOI: 10.1109/TRIDENTCOM.2007.4444668

Markus Peuhkuri¹^,*, Antti Gröhn²^,*, Oskari Simola³^,*

1: TKK Helsinki University of Technology Espoo, Finland
2: Nokia Siemens Networks Espoo, Finland
3: Networking Laboratory TKK Helsinki University of Technology Espoo, Finland

*Contact email: markus.peuhkuri@tkk.fi, antti.grohn@nsn.com, oskari@netlab.tkk.fi

Abstract

Accurate timing is an essential component for various areas of experimental research. Although expensive capture cards provide accurate time stamps for packets seen in networks, those do not help in synchronising applications or in-kernel processes. We present a moderate-cost approach to provide submicrosecond accuracy on common PC hardware using custombuilt clock card. The synchronisation accuracy is improved several orders of magnitude compared with synchronisation over network and an order of magnitude compared with pulseper- second signal on a serial port. Clock accuracy does not significantly suffer from a high I/O load on the computer.

Published: 2010-05-16
Modified: 2010-05-16

: http://dx.doi.org/10.1109/TRIDENTCOM.2007.4444668