Detail publikace

Real-time capabilities of Linux RTAI

ARM, J. BRADÁČ, Z. KACZMARCZYK, V.

Originální název

Real-time capabilities of Linux RTAI

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

This article deals with the Linux real-time extension RTAI. This extension provides soft real-time capabilities in the user space and hard real-time capabilities in the kernel space. In this work, some key parameters of the RTOS are measured such as switching context time, periodic thread jitter, interrupt latency response, execution time of synchronization primitives and heap allocation time. This measurements create a test bench of real-time system capabilities which should help the developer to create truly real-time application on the specific hardware based on measured real-time capabilities. RTAI functions can be called from the user space using LXRT and also from the kernel space. These two spaces are compared from the point of view of the developer and real-time capabilities. All measurements have been done on the LinuxCNC 2.7 based on Debian 3.4 distribution running on AMD Athlon XP 3000+ uniprocessor. To accomplish these measurements, new benchmark application has been developed.

Klíčová slova

Real-time, Linux, RTAI, LXRT, jitter, switching context time, response latency, function latency, memory allocation, benchmarking.

Autoři

ARM, J.; BRADÁČ, Z.; KACZMARCZYK, V.

Vydáno

5. 10. 2016

Místo

Brno

ISBN

9781510835023

Kniha

Proceedings on 14h IFAC Conference on Programmable Devices and Embedded Systems PDES 2016 (Preprint)

ISSN

2405-8963

Periodikum

IFAC-PapersOnLine (ELSEVIER)

Ročník

2016

Číslo

14

Stát

Nizozemsko

Strany od

446

Strany do

451

Strany počet

6

BibTex

@inproceedings{BUT128801,
  author="Jakub {Arm} and Zdeněk {Bradáč} and Václav {Kaczmarczyk}",
  title="Real-time capabilities of Linux RTAI",
  booktitle="Proceedings on 14h IFAC Conference on Programmable Devices and Embedded Systems PDES 2016 (Preprint)",
  year="2016",
  journal="IFAC-PapersOnLine (ELSEVIER)",
  volume="2016",
  number="14",
  pages="446--451",
  address="Brno",
  doi="10.1016/j.ifacol.2016.12.080",
  isbn="9781510835023",
  issn="2405-8963"
}