Self-configurable time source initialization for obtaining high-precision user-space timing
Abstract
In this paper, the algorithms and identification logics of a high performance user-space time source are described along with an experimental comparison of the accuracy and CPU costs of the available time sources under the Linux OS. This mechanism is presented within the unified user-space library HighPerTimer which allows identification of the most appropriate and accurate time source on PC-platforms as well as on ARM-architectures and obtaining a high-accurate down to nanosecond precision of time acquisition. This solution substitutes the accustomed way of getting time value through Linux system calls and provides much faster way for time acquisition.
Keywords
timestamp precision,
hardware timestamping,
timekeeping,
HPET,
TSC,
high-performance computing,
HPET,
TSC
About the Authors
I. .. Fedotova
Siberian State University of Telecommunications and Informatics
Russian Federation
Russian Federation
E. .. Siemens
Anhalt University of Applied Sciences
Russian Federation
Russian Federation
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Review
For citations:
Fedotova I..., Siemens E... Self-configurable time source initialization for obtaining high-precision user-space timing. The Herald of the Siberian State University of Telecommunications and Information Science. 2012;(4):22-30. (In Russ.)
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