License: Creative Commons Attribution 4.0 International license (CC BY 4.0)
When quoting this document, please refer to the following
DOI: 10.4230/DARTS.7.1.3
URN: urn:nbn:de:0030-drops-139828
URL: http://dagstuhl.sunsite.rwth-aachen.de/volltexte/2021/13982/
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Nemitz, Catherine E. ; Caspin, Shai ; Anderson, James H. ; Ward, Bryan C.

Light Reading: Optimizing Reader/Writer Locking for Read-Dominant Real-Time Workloads (Artifact)

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DARTS-7-1-3.pdf (0.4 MB)

Abstract

This paper is directed at reader/writer locking for read-dominant real-time workloads. It is shown that state-of-the-art real-time reader/writer locking protocols are subject to performance limitations when reads dominate, and that existing schedulability analysis fails to leverage the sparsity of writes in this case. A new reader/writer locking-protocol implementation and new inflation-free schedulability analysis are proposed to address these problems. Overhead evaluations of the new implementation show a decrease in overheads of up to 70% over previous implementations, leading to throughput for read operations increasing by up to 450%. Schedulability experiments are presented that show that the analysis results in schedulability improvements of up to 156.8% compared to the existing state-of-the-art approach.

BibTeX - Entry

@Article{nemitz_et_al:DARTS.7.1.3,
  author =	{Nemitz, Catherine E. and Caspin, Shai and Anderson, James H. and Ward, Bryan C.},
  title =	{{Light Reading: Optimizing Reader/Writer Locking for Read-Dominant Real-Time Workloads (Artifact)}},
  pages =	{3:1--3:3},
  journal =	{Dagstuhl Artifacts Series},
  ISSN =	{2509-8195},
  year =	{2021},
  volume =	{7},
  number =	{1},
  editor =	{Nemitz, Catherine E. and Caspin, Shai and Anderson, James H. and Ward, Bryan C.},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/opus/volltexte/2021/13982},
  URN =		{urn:nbn:de:0030-drops-139828},
  doi =		{10.4230/DARTS.7.1.3},
  annote =	{Keywords: Reader/writer, real-time, synchronization, spinlock, RMR complexity}
}

Keywords: Reader/writer, real-time, synchronization, spinlock, RMR complexity
Collection: DARTS, Volume 7, Issue 1, Special Issue of the 33rd Euromicro Conference on Real-Time Systems (ECRTS 2021)
Related Scholarly Article: https://doi.org/10.4230/LIPIcs.ECRTS.2021.6
Issue Date: 2021
Date of publication: 30.06.2021

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