mohsen bashiri

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Seongsoo Hong

Seoul National University

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Vandy Berten

Sasikumar Punnekkat

Mälardalen University

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Alpen-Adria-Universität Klagenfurt

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University of North Carolina at Chapel Hill

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Symbiosis International University

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Papers by mohsen bashiri

Performability Guarantee for Periodic Tasks in Real-Time Systems

Scientia Iranica, 2014

Performability is an important parameter in safety-critical real-time systems. This parameter is ... more Performability is an important parameter in safety-critical real-time systems. This parameter is defined as the joint consideration of two other important parameters, i.e., reliability and performance. This paper proposes a schedulability condition, which guarantees a desired level of performability in various working conditions, for real-time systems. The basic idea underlining this condition is to select a subset of schedulable tasks and manage their slack times to satisfy a desired performability level. The proposed condition is evaluated on a hard real-time system that employs the Rate-Monotonic (RM) scheduling algorithm and uses the re-execution mechanism to improve the reliability. Evaluation results reveal that by employing the condition, the level of performability of the system is always greater than the desired performability. In addition, it yields on average 1% improvement in the system performability in comparison with traditional schedulability conditions, while the ac...

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Investigating the Effects of Schedulability Conditions on the Power Efficiency of Task Scheduling in an Embedded System

2010 13th IEEE International Symposium on Object/Component/Service-Oriented Real-Time Distributed Computing, 2010

Power consumption, performance and reliability are the most important parameters in modern safety... more Power consumption, performance and reliability are the most important parameters in modern safety-critical distributed real-time embedded systems. This paper evaluates and compares different schedulability conditions in fault-tolerant Rate-Monotonic (RM) and Earliest-Deadline-First (EDF) algorithms, with respect to their power efficiency. The primary-backup scheme is used to implement fault tolerance in the algorithms. To evaluate the algorithms, a software tool is developed

Performability Comparison of Schedulability Conditions in Real-Time Embedded Systems

2010 Third International Conference on Dependability, 2010

In modern safety-critical real-time embedded systems, performance and reliability are two most im... more In modern safety-critical real-time embedded systems, performance and reliability are two most important parameters. The joint consideration of these two parameters is called performability. This paper evaluates and compares different schedulability conditions, which are used for scheduling tasks with fault-tolerant Rate-Monotonic (RM) algorithm, with respect to their performability. The task re-execution scheme is used to implement fault tolerance in the

A Checkpointing Technique for Rollback Error Recovery in Embedded Systems

2006 International Conference on Microelectronics, 2006

Mohsen Bashiri, Seyed Ghassem Miremadi and Mahdi Fazeli Dependable Systems Laboratory, Computer E... more