Worst-case execution-time analysis for embedded real-time systems
نویسندگان
چکیده
منابع مشابه
A Worst-Case Execution-Time Analysis Tool Prototype for Embedded Real-Time Systems¦
This paper gives an overview of the Worst-Case Execution Time (WCET) analysis research performed by the WCET group at Uppsala University, Sweden, in cooperation with C-LAB in Paderborn, Germany. We have defined a modular architecture for a WCET estimation tool. The architecture has been used both to identify the components of the overall WCET analysis problem, and as a starting point for the de...
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1 Introduction This chapter deals with the problem of how to estimate and analyze the execution time of embedded real-time software, in particular the worst-case execution time. A real-time system must react within precise time constraints, related to events in its environment and the system it controls. This means that the correct behavior of a real-time system depends not only on the result o...
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This paper describes the tool support for a framework for performing probabilistic worst-case execution time (WCET) analysis for embedded real-time systems. The tool is based on a combination of measurement and static analysis, all in a probabilistic framework. Measurement is used to determine execution traces and static analysis to construct the worst path and effectively providing an upper bo...
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As embedded hardware becomes more powerful, it allows for more complex real time systems running tasks with highly dynamic execution times. This dynamicity makes the already formidable task of producing accurate WCET analysis even more di cult. Since the variation in execution time depends on task input and the state of the system, it is postulated that a more accurate estimate for the WCET can...
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A Worst-Case Execution Time (WCET) analysis finds upper bounds for the execution time of programs. Reliable WCET estimates are essential in the development of safety-critical embedded systems, where failures to meet timing deadlines can have catastrophic consequences. Traditionally, WCET analysis is applied only in the late stages of embedded system software development. This is problematic, si...
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ژورنال
عنوان ژورنال: International Journal on Software Tools for Technology Transfer
سال: 2003
ISSN: 1433-2779,1433-2787
DOI: 10.1007/s100090100054