Responsive task for real-time communication

Hiroyuki Chishiro, Kohei Osawa, Nobuyuki Yamasaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Humanoid robots are typical application of real-time systems and have required timing constraints, low-latency, and parallel/distributed processing to achieve fine-grained real-time execution. Therefore, we have developed Dependable Responsive Multithreaded Processor I (D-RMTP I), which has one Responsive Multithreaded Processing Unit with an 8-way prioritized Simultaneous Multithreading architecture. In addition, D-RMTP I has Responsive Link, which is a communication standard as specified in ISO/IEC 24740:2008 for distributed real-time systems. Our previous work presented Responsive Task, which is a low-latency real-time task with the interrupt wake-up structure on D-RMTP I. Unfortunately, Responsive Task does not support real-time communication. We present Responsive Task for real-time communication by using Responsive Link. Responsive Task for real-time communication can be waked up with low-latency by the external interrupt when packets in Responsive Link are received. Experimental results by using Responsive Link show that Responsive Tasks outperform real-time tasks with respect to the overhead of wake-up, the response time, and the jitter.

Original languageEnglish
Title of host publicationProceedings - 2017 IEEE 20th International Symposium on Real-Time Distributed Computing, ISORC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages52-59
Number of pages8
ISBN (Electronic)9781538615744
DOIs
Publication statusPublished - 2017 Jun 30
Event20th IEEE International Symposium on Real-Time Distributed Computing, ISORC 2017 - Toronto, Canada
Duration: 2017 May 162017 May 18

Other

Other20th IEEE International Symposium on Real-Time Distributed Computing, ISORC 2017
CountryCanada
CityToronto
Period17/5/1617/5/18

Keywords

  • Dependable Responsive Multithreaded Processor
  • Jitter
  • Low-Latency
  • Responsive Link
  • Responsive Task

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture

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    Chishiro, H., Osawa, K., & Yamasaki, N. (2017). Responsive task for real-time communication. In Proceedings - 2017 IEEE 20th International Symposium on Real-Time Distributed Computing, ISORC 2017 (pp. 52-59). [7964870] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISORC.2017.21