RTNS 2015

RTNS2015 > Home

23rd International Conference on Real-Time Networks and Systems

Lille, France, 4-6th November 2015

RTNS is a friendly conference with a great sense of community that presents excellent opportunities for collaboration.

The purpose of the conference is to share ideas, experiences and informations among academic researchers, developers and service providers in the field of real-time systems and networks.

RTNS 2015 will be in Lille, France.

RTNS 2015 is the 23rd edition of the conference formerly known as RTS (Real-Time Systems, Paris). The first 12 editions of RTS were french-speaking events held in Paris in conjunction with the RTS Embedded System exhibition. Since its 13th edition, the conference language of RTNS has been english.

The proceedings will be published by the ACM in the International Conference Proceedings Series and indexed by the ACM digital library.


RTNS2015 > Conference Program

Conference Program

Wednesday 4th November
8:00 Registration
9:00 Opening Remarks
9:30 - 10:30 Keynote (Chair: Liliana Cucu-Grosjean)
Network-on-Chip Platforms for Real-Time Mixed-Criticality Application
Leandro Soares Indrusiak
10:30 - 11:00 Coffee break
11:00 - 12:15 Session 1 - Multiprocessors I (Chair: Joel Goossens)
A Contention-Sensitive Fine-Grained Locking Protocol for Multiprocessor Real-Time Systems
Catherine Jarrett, Bryan Ward and James Anderson.
Multiprocessor Fixed Priority Scheduling with Limited Preemptions
Abhilash Thekkilakattil, Robert I. Davis, Radu Dobrin, Sasikumar Punnekkat and Marko Bertogna.
Iterative Robust Multiprocessor Scheduling
Shreya Adyanthaya, Marc Geilen, Twan Basten, Jeroen Voeten and Ramon Schiffelers.
12:15 - 13:45 Lunch
13:45 - 15:25 Session 2 - Probabilistic Analysis (Chair: Vincent Nelis)
A Framework For The Evaluation Of Measurement-based Timing Analyses
Benjamin Lesage, David Griffin, Frank Soboczenski, Iain Bate and Robert I. Davis.
Joint Management of Processing and Cooling Power Based on Inaccurate Thermal Information in a Stochastic Real-Time System
Mehdi Ghasemi, Morteza Mohaqeqi and Mehdi Kargahi.
Study of the Reliability of Statistical Timing Analysis for Real-Time Systems
Dorin Maxim, Frank Soboczenski, Iain Bate and Eduardo Tovar.
Modelling Fault Dependencies when Execution Time Budgets are Exceeded
David Griffin, Benjamin Lesage, Iain Bate, Frank Soboczenski and Robert I.
15:25 - 15:55 Coffee break
15:55 - 17:10 Session 3 - Multi-Stage Scheduling (Chair: Pascal Richard)
Analysis for Supporting Real-Time Computer Vision Workloads using OpenVX on Multicore + GPU Platforms
Kecheng Yang, Glenn Elliott and James Anderson.
Memory-Processor Co-Scheduling in Fixed Priority Systems
Alessandra Melani, Marko Bertogna, Vincenzo Bonifaci, Alberto Marchetti-Spaccamela and Giorgio Buttazzo.
Resource Reservation for Real-Time Self-Suspending Tasks: Theory and Practice
Alessandro Biondi, Alessio Balsini and Mauro Marinoni.
17:15 - 18:15 Junior Slides
18:20 Cocktail and posters
Thursday 5th November
9:00 - 10:40 Session 4 - Outstanding Papers (Chair: Nathan Fisher)
Scheduling with preemption delays: anomalies and issues
Guillaume Phavorin, Pascal Richard, Joël Goossens, Thomas Chapeaux and Claire Maiza.
Efficient Context Switching for the Stack Cache: Implementation and Analysis
Sahar Abbaspour, Florian Brandner, Amine Naji and Mathieu Jan.
A Generic and Compositional Framework for Multicore Response Time Analysis
Sebastian Altmeyer, Robert I. Davis, Leandro Soares Indrusiak, Claire Maiza, Vincent Nelis and Jan Reineke.
How realistic is the mixed-criticality real-time system model?
Alexandre Esper, Geoffrey Nelissen, Vincent Nélis and Eduardo Tovar.
10:40 - 11:15 Coffee Break
11:15 Session 5 - On-chip Networks (Chair: Jan Mathieu)
Flexible TDM-Based Resource Management in On-Chip Networks
Adam Kostrzewa, Selma Saidi, Leonardo Ecco and Rolf Ernst.
Hard Real-time Guarantee of Automotive Applications during Mode Changes
Piotr Dziurzanski, Amit Singh, Leandro Indrusiak and Björn Saballus.
Improved Priority Assignment for Real-Time Communications in On-Chip Networks
Meng Liu, Matthias Becker, Moris Behnam and Thomas Nolte.
12:30 - 14:00 Lunch
14:00 - 14:50 Session 6 - WCET (Chair: Isabelle Puaut)
WCET Analysis in Shared Resources Real-Time Systems with TDMA Buses
Hamza Rihani, Matthieu Moy, Claire Maiza and Sebastian Altmeyer.
WCET Analysis for Multi-Core Processors with Shared Buses and Event-Driven Bus Arbitration
Michael Jacobs, Sebastian Hahn and Sebastian Hack.
15:15 Social Event
20:00 Banquet (RTNS'2015 AWARDS)
Friday 6th November
9:00 - 10:15 Session 7 - Multiprocessors II (Chair: Robert I. Davis)
Response Time Analysis for G-EDF and G-DM Scheduling of Sporadic DAG-Tasks with Arbitrary Deadline
Andrea Parri, Alessandro Biondi and Mauro Marinoni.
Response Time Bounds for Sporadic Arbitrary-Deadline Tasks under Global Fixed-Priority Scheduling on Multiprocessors
Wen-Hung Kevin Huang and Jian-Jia Chen.
An Exact Schedulability Test for Global FP Using State Space Pruning
Artem Burmyakov, Enrico Bini and Eduardo Tovar.
10:15 - 10:45 Coffee Break
10:45 - 12:25 Session 8 - Mixed Criticality (Chair: Laurent George)
Mixed Criticality Systems with Weakly-Hard Constraints
Oliver Gettings, Sophie Quinton and Robert I. Davis.
The concurrent consideration of uncertainty in WCETs and processor speeds in mixed criticality systems
Zhishan Guo and Sanjoy Baruah.
Semi-partitioned Model for Dual-core Mixed Criticality System
Hao Xu and Alan Burns.
Generalized Mixed-Criticality Scheduling based on RUN
Romain Gratia, Thomas Robert and Laurent Pautet.
12:25 - 14:00 Lunch
14:00 - 15:15 Session 9 - Networks (Chair: Jean-Luc Sharbarg)
On Priority Assignment for Controller Area Network when some Message Identifiers are Fixed
Robert I. Davis, Alan Burns, Victor Pollex and Frank Slomka.
Time-Division Multiplexing vs Network Calculus: A Comparison
Wolfgang Puffitsch, Rasmus Bo Sørensen and Martin Schoeberl.
A Reliability-Aware Medium Access Control for Unidirectional Time-Constrained WSNs
Philip Parsch and Alejandro Masrur.
15:15 - 15:35 Coffee Break
15:35 - 16:25 Session 10 - Non-Preemptivity and Control (Chair: Sebastien Faucou)
Non-Work-Conserving Scheduling of Non-Preemptive Hard Real-Time Tasks Based on Fixed Priorities
Mitra Nasri and Gerhard Fohler.
Worst-Case Performance Validation of Safety-Critical Control Systems with Dropped Samples
Tobias Bund and Frank Slomka.
16:30 Goodbye speech, BEST PRESENTATION AWARD ... and see you at RTNS'2016
RTNS2015 > Call-for-Papers

Conference aims and topics

PDF version of the Call for Papers
Text version of the Call for Papers

RTNS is a friendly conference with a great sense of community that presents excellent opportunities for collaboration. The purpose of RTNS is to share new ideas, experiences and information among academic researchers, developers and service providers in the field of real-time systems and networks. Original unpublished papers on all aspects of real-time systems are welcome. These include, but are not limited to:



Submission deadline: July 24, 2015 (no extensions)

Notification of acceptance: September 1, 2015

RTNS2015 > Submission

Instructions to authors

Papers are limited to 10 two-column pages in a font no smaller than 9-points.

The corresponding templates are here:

Authors submitting a paper to RTNS 2015 confirm that neither the paper, nor a version of it, is under submission elsewhere nor will be submitted elsewhere before notification by RTNS 2015, and that if the paper is accepted, at least one author will register by the special registration deadline, and present the paper at the conference.

The link to the Easychair submission page is here

RTNS2015 > Keynote talk

Keynote Talk

Network-on-Chip Platforms for Real-Time Mixed-Criticality Application (download here)

Dr Leandro Soares Indrusiak Leandro Soares Indrusiak(Department of Computer Science, University of York)


Network-on-Chip (NoC) is a widely used on-chip interconnect architecture for large multi and many-core processors. NoCs provide packet-switching infrastructure for multiple types of system-wide communications, such as message passing between tasks running on different cores, data transfers between external memories and local scratchpads, or paging and coherency mechanisms for multi-level caches. In all cases, the performance of the NoC affects system timeliness and thus must be taken into account when analysing application-level real-time guarantees. This is specially true when application tasks and communication packets of different levels of criticality share the NoC infrastructure. This talk will introduce and motivate a communication-centric design approach to multi and manycore systems, followed by the basics of Networks-on-Chip architectures, with special emphasis to the use of priority-preemptive virtual channels. Then, it will review the state-of-the-art in schedulability analysis for those NoC architectures, enabling safe upper bounds to end-to-end latency (tasks and packet flows) in single and mixed-criticality applications. Finally, it gives an insight on how schedulability analysis can be used as a fitness function in the design space exploration of NoC-based embedded systems, aiming to meet performance guarantees and optimise energy dissipation.


Leandro Soares Indrusiak graduated in Electrical Engineering from the Federal University of Santa Maria (UFSM, Brazil) and obtained a MSc in Computer Science from the Federal University of Rio Grande do Sul (UFRGS, Brazil) in 1995 and 1998, respectively. He held a tenured assistant professorship at the Informatics department of the Catholic University of Rio Grande do Sul (Brazil) from 1998 to 2000. From 2001 to 2008 he worked as a researcher at the Technische Universitaet Darmstadt (Germany) where he did his PhD and then lead a research group on System-on-Chip design. His binational doctoral degree was jointly awarded by UFRGS and TU Darmstadt in 2003. Since 2008, he is a permanent faculty member of University of York's Computer Science department (Lecturer 2008, Senior Lecturer 2013), and a member of the Real-Time Systems (RTS) research group. His current research interests include on-chip multiprocessor systems, distributed embedded systems, mapping and scheduling of applications over multiprocessor and distributed platforms, adaptive and reconfigurable computing, having published more than 100 peer-reviewed papers in the main international conferences and journals covering those topics. He currently supervises five PhD students and four post-doc research assistants. He is the principal investigator and technical leader of the EU-funded DreamCloud project (Dynamic Resource Allocation in Embedded and High-Performance Computing), and a co-investigator in the EPSRC-funded MCC project (Mixed Criticality Embedded Systems on Many-Core Platforms). He also coordinates two MSc programmes, serves as the department's Internationalisation Advisor, is a member of the EPSRC College, and a senior member of the IEEE.

RTNS2015 > registration


All participants must be registered. Please register in advance. See the link at the end of the page.

Registration at Early Registration rates will be possible until 8th October 2015.
AT LEAST ONE AUTHOR (student or full rate) PER FULL PAPER has to be registered before 8th October 2015.
AT LEAST ONE AUTHOR PER JUNIOR WORKSHOP PAPER (student or full rate) has to be registered before 8th October 2015.

Registration fees to the main conference

Early Late
Full Rate 280€ 460€
Student 140€ 260€

The registration fees includes for all packages:
In all packages, travel costs are not included and are the responsibility of each conference participant.

Extra tickets for the social event and dinner can be purchased till 8th October, for 80 €.

All cancellations must be notified in writing (by mail or e-mail) to the Registration Management rtns-2015@univ-lille1.fr according to the following conditions and reimbursement (will be processed AFTER the Congress): Up to 8th October 2015, a 10% cancellation fee will be withheld for administrative fee; After 8th October 2015, no refund.

The online registration is available here.
RTNS2015 > Dates

Important dates

Submission deadline: 24th July 2015
Notification to authors: 1st September 2015
Camera ready paper due: 1st October 2015
Early registration: 8th October 2015
Conference: 4-6th November 2015

The submission site will close to new submissions at 23:59:59 GMT -12 on 24 July 2015.; Authors, however, will have a two day grace period to modify their previously submitted papers. The submission site will automatically close for all modifications at 23:59:59 GMT -12 on 26 July 2015.
No further updates to papers are possible after this date.

RTNS2015 > Committees

Conference Committees

General chair
Program chairs
Local organization committee
Program committee
Steering committee
RTNS2015 > Local Information

Local information

The Conference Guide is available here.

For any information, you can send an e-mail to the local organization committee.

Venue and useful informations

The meeting will take place at Polytech, Université de Lille on 4-6th November 2015.
Wi-Fi network with access control on site. Credentials will be available at the conference.
Lunches and coffee breaks will be served on site. They are included in the registration fees.

Polytech Lille,
Avenue Paul Langevin,
59655 Villeneuve-d'Ascq
Click here for the map

Check-in / Registration and opening session: Polytech Lille, Hall
Conference: Polytech Lille, Amphi Appert

How to reach the location of the conference

Travel details : You may arrive at the conference place:

Lille Renaissance

RTNS'2015 will take place during the Lille Renaissance cultural season. Based on previous editions of this festival (which occurs every 3 years), members of the committee can assure paticipants that it will be a very (very) exciting time to come to Lille. Consider staying for the week-end !

Additional information can be found in this document.

RTNS2015 > Accomodation


Reeflex University Residence Hall
Web site: http://reeflex.univ-lille.fr/home/Researcher/Rates-and-Reservations
Distance: 5 minutes walk from conference site.
Wifi access: eduspot
To benefit from the "partner" rate (detailed on the rates page above):

  1. Send an email to reeflex@univ-lille.fr
  2. Mention RTNS'2015 in the email subject.
  3. Put rtns-2015@univ-lille1.fr as Cc.
  4. Attach a scan of your identification papers
Please note that there is no breakfast service at the residence.

Tulip Inn
Web site: http://www.tulipinnlillegrandstade.com/en
Distance: 5 minutes walk from conference site.
Special rate (65€/night, breakfast excluded).
To benefit from the partner rate, send an email to info@tulipinnlillegrandstade.com and mention Polytech Conference in your mail subject, or call (+33)

Downtown accomodation
Visit http://en.lilletourism.com        
Note that the conference venue is only 20 minutes away from Lille-downtown by subway (Rihour station).
RTNS2015 > Past Issues

Past Issues

RTNS 2014: Versailles (France), PC chairs: Joel Goossens (ULB, Brussels, Belgium) and Claire Maiza (INP/Verimag, Grenoble, France)

RTNS 2013: Sophia Antipolis (France), PC chairs: Robert I. Davis (University of York, UK) and Emmanuel Grolleau (LIAS, Poitiers, France)

RTNS 2012: Pont à Mousson (France), PC chairs: Christine Rochange (University of Toulouse/IRIT, France) and Jim Andersson (University of North Carolina, USA)

RTNS 2011: Nantes (France), PC chairs: Alan Burns (University of York, UK) and Laurent George (Inria/AOSTE - UPEC/LISSI, France)

RTNS 2010: Toulouse (France), PC chairs: Sanjoy Baruah (University of North Carolina, USA) and Yves Sorel (Inria, Rocquencourt, France)

RTNS 2009: Paris (France), PC chairs: Maryline Chetto (IRCCyN, Nantes, France) and Mikael Sjödin (Mälardalen University, Sweden)

RTNS 2008: Rennes (France), PC chairs: Pascale Minet (Inria-Rocquencourt/Hipercom, France) and Giorgio Buttazzo (Scuola Superiore Sant'Anna, Pisa, Italy)

RTNS 2007: Nancy (France), PC chair: Isabelle Puaut (University of Rennes/IRISA, France)

RTNS 2006: Poitiers (France), PC chair: Guy Juanole(LAAS, Toulouse, France) and Pascal Richard (LISI, Poitiers, France)

RTS 2005: Paris (France), PC chair: Nicolas Navet (LORIA, Nancy, France)

RTS 2004 : Paris (France),PC chair : Joël Goossens (University of Bruxelles, Belgium)

RTS 2001: Paris (France), PC chair: Zoubir Mammeri (IRIT, UPS Toulouse, France)

RTS 2000: Paris (France), Francis Cottet (LISI, ENSMA, Poitiers)

RTS03, RTS02, RTS, RTS99, RTS98, RTS97, RTS96, RTS95, RTS94, RTS93: no official website

CRIStAL Univ. Lille 1 A.C.M. Nord-Pas de Calais
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