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Embedded Hard Real-Time Systems Scheduling: An Unmanned Ground Vehicle Case Study

by Raimundo Barreto, Eduardo Tavares, Paulo Maciel
"... Abstract. Finding a hard real-time feasible schedule is not trivial since this problem is NP-hard in its general form. There are two general approaches for scheduling tasks: runtime and pre-runtime scheduling. For many cases, runtime methods do not find a feasible schedule even if such a schedule ex ..."
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Abstract. Finding a hard real-time feasible schedule is not trivial since this problem is NP-hard in its general form. There are two general approaches for scheduling tasks: runtime and pre-runtime scheduling. For many cases, runtime methods do not find a feasible schedule even if such a schedule

A Generic Framework for Blackbox Components in WCET Computation,”

by C Ballabriga , H Cassé , M De Michiel - in Proceedings of the 9th International Workshop on Worst-Case Execution Time (WCET) Analysis, N. Holsti, Ed. Dagstuhl, Germany: Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik, , 2009
"... Abstract Validation of embedded hard real-time systems requires the computation of the Worst Case Execution Time (WCET ..."
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Abstract Validation of embedded hard real-time systems requires the computation of the Worst Case Execution Time (WCET

Multi-Criteria Optimization of Hard Real-Time Systems

by Nicolas Roeser, Heiko Falk
"... Modern embedded hard real-time systems often have to com-ply with several design constraints. On the one hand, the system’s execution time has to be provably less than or equal to a given deadline. On the other hand, further constraints may be given with regard to maximum code size and en-ergy consu ..."
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Modern embedded hard real-time systems often have to com-ply with several design constraints. On the one hand, the system’s execution time has to be provably less than or equal to a given deadline. On the other hand, further constraints may be given with regard to maximum code size and en

Real-Time Dynamic Voltage Scaling for Low-Power Embedded Operating Systems

by Padmanabhan Pillai, Kang G. Shin , 2001
"... In recent years, there has been a rapid and wide spread of nontraditional computing platforms, especially mobile and portable computing devices. As applications become increasingly sophisticated and processing power increases, the most serious limitation on these devices is the available battery lif ..."
Abstract - Cited by 501 (4 self) - Add to MetaCart
the necessary peak computation power in general-purpose systems. However, for a large class of applications in embedded real-time systems like cellular phones and camcorders, the variable operating frequency interferes with their deadline guarantee mechanisms, and DVS in this context, despite its growing

Making Worst Case Execution Time Analysis for Hard Real-Time Tasks on State of the Art Processors Feasible

by Stefan M. Petters, Prof Dr. -ing, Georg Färber, Georg Farber , 1999
"... In the development of embedded hard real-time systems the ability to guarantee worst case execution times is gaining importance and complexity. The fast evolving processor acceleration techniques constantly increase the gap between a processor which uses the accelerations and one which does not. Mod ..."
Abstract - Cited by 29 (1 self) - Add to MetaCart
In the development of embedded hard real-time systems the ability to guarantee worst case execution times is gaining importance and complexity. The fast evolving processor acceleration techniques constantly increase the gap between a processor which uses the accelerations and one which does not

Language And Compiler Supported Timing Analysis In Real-Time Control

by D. Verber, M. Colnaric, W.A. Halang - NOT j '-' and operator ::= AND j '&' reconfiguration block ::= BEGIN , 2000
"... . To ensure temporally predictable execution behaviour of an embedded hard real-- time computer control system, layer--by--layer predictability of the system must be provided. Based on a simple structured programming language, a programming environment for hard real--time applications is under const ..."
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. To ensure temporally predictable execution behaviour of an embedded hard real-- time computer control system, layer--by--layer predictability of the system must be provided. Based on a simple structured programming language, a programming environment for hard real--time applications is under

Performance comparison of dynamic voltage scaling algorithms for hard real-time systems

by Woonseok Kim, Dongkun Shin, Han-saem Yun, Jihong Kim, Sang Lyul Min - Proc. IEEE Real-Time and
"... Dynamic voltage scaling (DVS) is an effective low-power design technique for embedded real-time systems. In recent years, many DVS algorithms have been proposed for reduc-ing the energy consumption of embedded hard real-time sys-tems. However, the proposed DVS algorithms were not quan-titatively eva ..."
Abstract - Cited by 61 (8 self) - Add to MetaCart
Dynamic voltage scaling (DVS) is an effective low-power design technique for embedded real-time systems. In recent years, many DVS algorithms have been proposed for reduc-ing the energy consumption of embedded hard real-time sys-tems. However, the proposed DVS algorithms were not quan

Bounding the Execution Time of Real-Time Tasks on Modern Processors

by Stefan M. Petters - in Proc. 7th Intl. Conf. Real-Time Computing Systems and Applications, Cheju Island , 2000
"... Finding a tight estimate on the execution time of tasks in embedded hard real-time systems is gaining complexity and importance. Uptodate processors are equipped with acceleration techniques to bridge the gap between the fast core frequency of the processors and the comparably slow main memory. On t ..."
Abstract - Cited by 7 (0 self) - Add to MetaCart
Finding a tight estimate on the execution time of tasks in embedded hard real-time systems is gaining complexity and importance. Uptodate processors are equipped with acceleration techniques to bridge the gap between the fast core frequency of the processors and the comparably slow main memory

Integrating Multimedia Applications in Hard Real-Time Systems

by Luca Abeni, Giorgio Buttazzo, Scuola Superiore, S. Anna - in Proc. 19th IEEE Real-Time Systems Symposium (RTSS’98 , 1998
"... This paper focuses on the problem of providing efficient run-time support to multimedia applications in a real-time system, where two types of tasks can coexist simultaneously: multimedia soft real-time tasks and hard real-time tasks. Hard tasks are guaranteed based on worst case execution times and ..."
Abstract - Cited by 318 (51 self) - Add to MetaCart
This paper focuses on the problem of providing efficient run-time support to multimedia applications in a real-time system, where two types of tasks can coexist simultaneously: multimedia soft real-time tasks and hard real-time tasks. Hard tasks are guaranteed based on worst case execution times

Real-time Management in Emergent Systems

by Steffen Stein, Arne Hamann, Rolf Ernst
"... Abstract: Integrating new functionality into complex embedded hard real-time systems requires considerable engineering effort. Emerging formal analysis methodologies and tools from real-time research assist system engineers solving this integration problem. For future organic computer systems, howev ..."
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Abstract: Integrating new functionality into complex embedded hard real-time systems requires considerable engineering effort. Emerging formal analysis methodologies and tools from real-time research assist system engineers solving this integration problem. For future organic computer systems
Results 11 - 20 of 9,679