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DOI: 10.4230/OASIcs.Fog-IoT.2020.7

Real-Time Containers: A Survey

Authors: Václav Struhár, Moris Behnam, Mohammad Ashjaei, and Alessandro V. Papadopoulos

Published in: OASIcs, Volume 80, 2nd Workshop on Fog Computing and the IoT (Fog-IoT 2020)

Abstract

Container-based virtualization has gained a significant importance in a deployment of software applications in cloud-based environments. The technology fully relies on operating system features and does not require a virtualization layer (hypervisor) that introduces a performance degradation. Container-based virtualization allows to co-locate multiple isolated containers on a single computation node as well as to decompose an application into multiple containers distributed among several hosts (e.g., in fog computing layer). Such a technology seems very promising in other domains as well, e.g., in industrial automation, automotive, and aviation industry where mixed criticality containerized applications from various vendors can be co-located on shared resources. However, such industrial domains often require real-time behavior (i.e, a capability to meet predefined deadlines). These capabilities are not fully supported by the container-based virtualization yet. In this work, we provide a systematic literature survey study that summarizes the effort of the research community on bringing real-time properties in container-based virtualization. We categorize existing work into main research areas and identify possible immature points of the technology.

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Václav Struhár, Moris Behnam, Mohammad Ashjaei, and Alessandro V. Papadopoulos. Real-Time Containers: A Survey. In 2nd Workshop on Fog Computing and the IoT (Fog-IoT 2020). Open Access Series in Informatics (OASIcs), Volume 80, pp. 7:1-7:9, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@InProceedings{struhar_et_al:OASIcs.Fog-IoT.2020.7,
  author =	{Struh\'{a}r, V\'{a}clav and Behnam, Moris and Ashjaei, Mohammad and Papadopoulos, Alessandro V.},
  title =	{{Real-Time Containers: A Survey}},
  booktitle =	{2nd Workshop on Fog Computing and the IoT (Fog-IoT 2020)},
  pages =	{7:1--7:9},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-144-3},
  ISSN =	{2190-6807},
  year =	{2020},
  volume =	{80},
  editor =	{Cervin, Anton and Yang, Yang},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.Fog-IoT.2020.7},
  URN =		{urn:nbn:de:0030-drops-120011},
  doi =		{10.4230/OASIcs.Fog-IoT.2020.7},
  annote =	{Keywords: Real-Time, Containers, Docker, LXC, PREEMPT\underlineRT, Xenomai, RTAI}
}

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DOI: 10.4230/LITES-v004-i002-a003

Per Processor Spin-Based Protocols for Multiprocessor Real-Time Systems

Authors: Sara Afshar, Moris Behnam, Reinder J. Bril, and Thomas Nolte

Published in: LITES, Volume 4, Issue 2 (2017). Leibniz Transactions on Embedded Systems, Volume 4, Issue 2

Abstract

This paper investigates preemptive spin-based global resource sharing protocols for resource-constrained real-time embedded multi-core systems based on partitioned fixed-priority preemptive scheduling. We present preemptive spin-based protocols that feature (i) an increased schedulability ratio of task sets and reduced response jitter of tasks compared to the classical non-preemptive spin-based protocol, (ii) similar memory requirements for the administration of waiting tasks as for the non-preemptive protocol whilst only causing (iii) a minimal increase of the minimal number of required stacks per core from one to at most two, and (iv) strong progress guarantees to tasks. We complement these protocols with a unified worst-case response time analysis that specializes to the classical analysis for the non-preemptive protocol. The paper includes a comparative evaluation of the preemptive protocols and the non-preemptive protocol based on synthetic data.

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Sara Afshar, Moris Behnam, Reinder J. Bril, and Thomas Nolte. Per Processor Spin-Based Protocols for Multiprocessor Real-Time Systems. In LITES, Volume 4, Issue 2 (2017). Leibniz Transactions on Embedded Systems, Volume 4, Issue 2, pp. 03:1-03:30, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)

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@Article{afshar_et_al:LITES-v004-i002-a003,
  author =	{Afshar, Sara and Behnam, Moris and Bril, Reinder J. and Nolte, Thomas},
  title =	{{Per Processor Spin-Based Protocols for Multiprocessor Real-Time Systems}},
  journal =	{Leibniz Transactions on Embedded Systems},
  pages =	{03:1--03:30},
  ISSN =	{2199-2002},
  year =	{2018},
  volume =	{4},
  number =	{2},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LITES-v004-i002-a003},
  doi =		{10.4230/LITES-v004-i002-a003},
  annote =	{Keywords: Resource sharing, Real-time systems, Multiprocessors, Spin-locks}
}

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Real-Time Containers: A Survey

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Per Processor Spin-Based Protocols for Multiprocessor Real-Time Systems

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