Experimental evaluation of the linux RT patch for real-time applications

  • Authors:
  • Wolfgang Betz;Marco Cereia;Ivan Cibrario Bertolotti

  • Affiliations:
  • STMicroelectronics srl, Agrate Brianza, Italy;IEIIT-CNR, Torino, Italy;IEIIT-CNR, Torino, Italy

  • Venue:
  • ETFA'09 Proceedings of the 14th IEEE international conference on Emerging technologies & factory automation
  • Year:
  • 2009

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Abstract

The possibility of using Linux as underlying operating system for real-time applications has received considerable attention by industry due to several definite advantages, such as the lack of royalties and the availability of rich and programmer-friendly software development frameworks. In addition, the real-time capabilities of the Linux kernel have recently been enhanced considerably through the development of the Linux RT Patch. This paper evaluates the real-time characteristics of the Linux kernel with the RT Patch installed, in order to help the designer understand what sort of real-time performance is to be expected, and decide whether it is adequate or not for a given class of applications.