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Load-based schedulability analysis of certifiable mixed-criticality systems

Haohan Li, Sanjoy Baruah
2010 Proceedings of the tenth ACM international conference on Embedded software - EMSOFT '10  
In prior work, we have proposed a priority-based algorithm for scheduling such mixed-criticality systems on preemptive uniprocessor platforms.  ...  However, only a subset of the functionality of the system may be safety-critical and hence subject to certification; the rest of the functionality is non safety-critical and does not need to be certified  ...  Our results may be considered as a step towards a more comprehensive analysis of systems of mixed-criticality recurrent tasks.  ... 
doi:10.1145/1879021.1879035 dblp:conf/emsoft/LiB10 fatcat:alfymplq2zee7frof22mlliid4

An Algorithm for Scheduling Certifiable Mixed-Criticality Sporadic Task Systems

Haohan Li, Sanjoy Baruah
2010 2010 31st IEEE Real-Time Systems Symposium  
In prior work, we have studied the scheduling and analysis of mixed criticality systems that are specified as finite collections of jobs executing on a single shared preemptive processor.  ...  mixed-criticality system can be successfully scheduled by this algorithm.  ...  Priority-based scheduling is the other technique commonly used by systems engineers in dealing with mixed criticalities. (OCBP scheduling is an example of a prioritybased scheduling scheme.)  ... 
doi:10.1109/rtss.2010.18 dblp:conf/rtss/LiB10 fatcat:mwowoed3gfc7xidadfi3y5c5iy

Partitioned multiprocessor scheduling of mixed-criticality parallel jobs

Guangdong Liu, Ying Lu, Shige Wang, Zonghua Gu
2014 2014 IEEE 20th International Conference on Embedded and Real-Time Computing Systems and Applications  
This decomposition enables us to leverage existing mixed-criticality scheduling algorithms and schedulability analysis to the multiprocessor scheduling of mixed-criticality parallel jobs.  ...  Motivated by the increasing trend in embedded systems towards platform integration, there has been an increasing research interest in scheduling mixed-criticality systems.  ...  THE OCBP SCHEDULING ALGORITHM In [10] , Baruah et al. developed a priority-based algorithm called OCBP (Own Criticality-Based Priorities) for uniprocessor mixed-criticality scheduling.  ... 
doi:10.1109/rtcsa.2014.6910497 dblp:conf/rtcsa/LiuLWG14 fatcat:wer7hvv2knefxfmubqcmlqe67a

Mixed criticality scheduling in fault-tolerant distributed real-time systems

Abhilash Thekkilakattil, Radu Dobrin, Sasikumar Punnekkat
2014 2014 International Conference on Embedded Systems (ICES)  
Modern safety critical real-time systems are composed of tasks of mixed criticalities and the problem of scheduling them in a fault tolerant manner, on a distributed platform, is challenging.  ...  In this paper, we present a method for scheduling mixed criticality real-time tasks on a distributed platform in a fault tolerant manner while taking into account the recommendations given by the reliability  ...  Guan et al [1] proposed an algorithm for scheduling mixed criticality work loads.  ... 
doi:10.1109/embeddedsys.2014.6953097 fatcat:npovhz737fce3mwh5zwww5vudq

Virtualizing mixed-criticality systems: A survey on industrial trends and issues

Marcello Cinque, Domenico Cotroneo, Luigi De Simone, Stefano Rosiello
2021 Future generations computer systems  
Virtualization is gaining attraction in the industry as it promises a flexible way to integrate, manage, and re-use heterogeneous software components with mixed-criticality levels, on a shared hardware  ...  This work surveys the state-of-the-practice of real-time virtualization technologies by discussing common issues in the industry.  ...  mixed-criticality systems.  ... 
doi:10.1016/j.future.2021.12.002 fatcat:4q277etxfjewlpmkjcn7by42pm

Effective and Efficient Scheduling of Certifiable Mixed-Criticality Sporadic Task Systems

Nan Guan, Pontus Ekberg, Martin Stigge, Wang Yi
2011 2011 IEEE 32nd Real-Time Systems Symposium  
In this paper we present an algorithm called PLRS to schedule certifiable mixed-criticality sporadic tasks systems.  ...  The realtime scheduling of certifiable mixed-criticality systems has been recognized to be a challenging problem, where using traditional scheduling techniques may result in unacceptable resource waste  ...  In this paper we present an algorithm called PLRS to schedule certifiable mixed-criticality sporadic tasks systems.  ... 
doi:10.1109/rtss.2011.10 dblp:conf/rtss/GuanESY11 fatcat:xyvg46kjqfcppb5kznqmtrvvfa

Safepower Project: Architecture For Safe And Power-Efficient Mixed-Criticality Systems

Maher Fakih, Alina Lenz, Mikel Azkarate-Askasua, Javier Coronel, Alfons Crespo, Simon Davidmann, Juan Carlos Diaz Garcia, Nera González Romero, Kim Grüttner, Sören Schreiner, Razi Seyyedi, Roman Obermaisser (+6 others)
2017 Zenodo  
The EU project SAFEPOWER1 targets this research gap and aims to introduce certifiable methods to improve the power efficiency of mixed-criticality real-time systems (MCRTES).  ...  One way to increase the cost-efficiency of such System on Chip (SoC) is to enhance the way the SoC handles its power resources.  ...  When it comes to mixed-criticality, independence is a crucial factor to allow mixed-criticality systems to be certified separately and thus considerably reduce certification costs, improve scalability  ... 
doi:10.5281/zenodo.1216870 fatcat:46gbqu45lzct5mhsspuqt5i4wm

Multicore partitioned systems based on hypervisor

A. Crespo, M. Masmano, J. Coronel, S. Peiró, P. Balbastre, J. Simó
2014 IFAC Proceedings Volumes  
In this paper, we present a multi-core hypervisor for mixed-criticality applications as one of the results of the MultiPARTES project.  ...  Virtualization techniques maturity have reach the level to offer guarantees in critical systems.  ...  solutions based on mixed criticality virtualization systems for multi-core platforms as a means to lower down development, validation and certification efforts.  ... 
doi:10.3182/20140824-6-za-1003.02410 fatcat:j7y4a67p3zfxtlfdx2s4cneciq

Mixed Criticality in Control Systems

Alfons Crespo, Alejandro Alonso, Marga Marcos, Juan A. de la Puente, Patricia Balbastre
2014 IFAC Proceedings Volumes  
A better approach is to rely on partitioned systems, based on a hypervisor that isolates each of the virtual machines in the system.  ...  The aim of this paper is to introduce mixed-criticality systems, to introduce the most challenging research topics, and to provide some background on the most promising techniques and research activities  ...  CONCLUSIONS This paper has discussed the use of mixed-criticality systems.  ... 
doi:10.3182/20140824-6-za-1003.02004 fatcat:kus2lqmzi5b63ctyukhshw4xfq

Implementation and evaluation of mixed-criticality scheduling approaches for sporadic tasks

Huang-Ming Huang, Christopher Gill, Chenyang Lu
2014 ACM Transactions on Embedded Computing Systems  
Traditional fixed-priority scheduling analysis for periodic and sporadic task sets is based on the assumption that all tasks are equally critical to the correct operation of the system.  ...  In this article, we present a side-by-side implementation and evaluation of the known mixed-criticality scheduling approaches, for periodic and sporadic mixed-criticality tasks on uniprocessor systems,  ...  Li and Baruah [2010a] offered a busy period bound based on the load 2 of each criticality level.  ... 
doi:10.1145/2584612 fatcat:lcdl7boxgfadjbclwlei34bjme

Attacking the one-out-of-m multicore problem by combining hardware management with mixed-criticality provisioning

Namhoon Kim, Bryan C. Ward, Micaiah Chisholm, James H. Anderson, F. Donelson Smith
2017 Real-time systems  
This investigation is based on a new variant of the MC 2 (mixed-criticality on multicore) framework that enables tasks to be isolated by criticality level with respect to the hardware resources they access  ...  The key reason is the "oneout-of-m" problem: when checking real-time constraints on a multicore platform with m cores, analysis pessimism can easily negate the processing capacity of the additional m −  ...  However, certifying the real-time correctness of a system running on m cores can necessitate using analysis that is so pessimistic, the processing capacity of the additional m − 1 cores is entirely negated  ... 
doi:10.1007/s11241-017-9272-9 fatcat:kr3gr2rdpvhrvdu7ihssst5hxi

Towards Virtualization Concepts for Novel Automotive HMI Systems [chapter]

Simon Gansel, Stephan Schnitzer, Frank Dürr, Kurt Rothermel, Christian Maihöfer
2013 IFIP Advances in Information and Communication Technology  
Based on these requirements, we present the concept for a Virtualized Automotive Graphics System (VAGS ) that allows for the consolidation of mixed-criticality graphics ECUs.  ...  In this paper, we focus on the consolidation of graphics hardware through virtualization, which received a lot of interest in the car industry due to the growing relevance of HMI systems such as head unit  ...  Acknowledgement This paper has been supported in part by the ARAMiS (Automotive, Railway and Avionics Multicore Systems) project of the German Federal Ministry for Education and Research (BMBF) with funding  ... 
doi:10.1007/978-3-642-38853-8_18 fatcat:eidt7zfoync5ncj7ivbycms4g4

A Safety Concept for a Railway Mixed-Criticality Embedded System Based on Multicore Partitioning

Irune Agirre, Mikel Azkarate-Askasua, Asier Larrucea, Jon Perez, Tullio Vardanega, Francisco J. Cazorla
2015 2015 IEEE International Conference on Computer and Information Technology; Ubiquitous Computing and Communications; Dependable, Autonomic and Secure Computing; Pervasive Intelligence and Computing  
The development of mixed-criticality systems that integrate applications of different criticality levels (safety, security, real-time and non real-time) can provide multiple benefits such as product cost-size-weight  ...  This research paper describes a safety concept for a wind turbine mixed-criticality control system based on multicore partitioning that meets IEC-61508 and ISO-13849 industrial safety standards.  ...  The integration of applications of different criticality (safety, security, real-time and non-real time) in a single embedded system is referred as mixed-criticality system.  ... 
doi:10.1109/cit/iucc/dasc/picom.2015.268 dblp:conf/IEEEcit/AgirreALPVC15 fatcat:yvh7hylpjjedtiob6sgm6ews2y

Robust Mixed-Criticality Systems

Alan Burns, Robert I. Davis, Sanjoy Baruah, Iain Bate
2018 IEEE transactions on computers  
With mixed-criticality systems, fault tolerance must be criticality aware, i.e. some tasks should degrade less than others.  ...  In this paper a quantitative notion of robustness is defined, and it is shown how fixed priority-based task scheduling can be structured to maximise the likelihood of a system remaining fail operational  ...  on Mixed Criticality for useful discussions on the topic of this paper.  ... 
doi:10.1109/tc.2018.2831227 fatcat:c2iwxht44bejvbsd65svwsnlpi

Fair bandwidth sharing among virtual machines in a multi-criticality scope

Stefan Groesbrink, Luis Almeida, Mario de Sousa, Stefan M. Petters
2013 ACM SIGBED Review  
We propose an adaptive resource management scheme for virtualization-based systems that have to be certified.  ...  We propose an adaptive resource management scheme for virtualization-based systems that have to be certified.  ...  CONCLUSION We proposed an adaptive resource management scheme for virtualization-based systems that have to be certified.  ... 
doi:10.1145/2583687.2583692 fatcat:6wzkrutchffvrhuo375of4cusu
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