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221
Software Structure and WCET Predictability ∗
"... Being able to compute worstcase execution time bounds for tasks of an embedded software system with hard realtime constraints is crucial to ensure the correct (timing) behavior of the overall system. Any means to increase the (static) time predictability of the embedded software are of high intere ..."
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Being able to compute worstcase execution time bounds for tasks of an embedded software system with hard realtime constraints is crucial to ensure the correct (timing) behavior of the overall system. Any means to increase the (static) time predictability of the embedded software are of high
Influence of procedure cloning on WCET prediction
 In Proceedings of CODES+ISSS
, 2007
"... For the worstcase execution time (WCET) analysis, especially loops are an inherent source of unpredictability and loss of precision. This is caused by the difficulty to obtain safe and tight information on the number of iterations executed by a loop in the worst case. In particular, datadependent l ..."
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Cited by 4 (3 self)
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calling overhead. We show that procedure cloning for WCET minimization leads to significant improvements. Reductions of the WCET from 12 % up to 95 % were measured for reallife benchmarks. These results demonstrate that procedure cloning improves analyzability and predictability of realtime applications
Influence of onchip scratchpad memories on wcet prediction
, 2004
"... In contrast to standard PCs and many highperformance computer systems, systems that have to meet realtime requirements usually do not feature caches, since caches primarily improve the average case performance, whereas their impact on WCET is generally hard to predict. Especially in embedded syste ..."
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Cited by 20 (0 self)
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In contrast to standard PCs and many highperformance computer systems, systems that have to meet realtime requirements usually do not feature caches, since caches primarily improve the average case performance, whereas their impact on WCET is generally hard to predict. Especially in embedded
Optimizing JVM Object Operations to Improve WCET Predictability
"... This paper describes the optimizations introduced in Juice, a J2ME virtual machine for embedded systems. These optimizations are designed to make possible the determination of the WCET of the JVM bytecodes related to object and array management. The solution proposed, which is based on subdividing t ..."
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Cited by 1 (0 self)
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This paper describes the optimizations introduced in Juice, a J2ME virtual machine for embedded systems. These optimizations are designed to make possible the determination of the WCET of the JVM bytecodes related to object and array management. The solution proposed, which is based on subdividing
Fast and Precise WCET Prediction by Separated Cache and Path Analyses
 REALTIME SYSTEMS
, 1999
"... Precise runtime prediction suffers from a complexity problem when doing an integrated analysis. This problem is characterised by the conflict between an optimal solution and the complexity of the computation of the solution. The analysis ..."
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Cited by 121 (5 self)
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Precise runtime prediction suffers from a complexity problem when doing an integrated analysis. This problem is characterised by the conflict between an optimal solution and the complexity of the computation of the solution. The analysis
Fast and Precise WCET Prediction by Separated Cache and Path Analyses
"... Abstract. Precise runtime prediction suffers from a complexity problem when doing an integrated analysis. This problem is characterised by the conflict between an optimal solution and the complexity of the computation of the solution. The analysis of modern hardware consists of two parts: a) the an ..."
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Abstract. Precise runtime prediction suffers from a complexity problem when doing an integrated analysis. This problem is characterised by the conflict between an optimal solution and the complexity of the computation of the solution. The analysis of modern hardware consists of two parts: a
Caches in WCET Analysis Predictability
"... In order to fulfill stringent performance requirements, caches are now also used in hard realtime systems. In such systems, upper and lower bounds on ..."
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In order to fulfill stringent performance requirements, caches are now also used in hard realtime systems. In such systems, upper and lower bounds on
Efficient analysis of pipeline models for WCET computation
 In Proceedings of the 5th Intl Workshop on WorstCase Execution Time (WCET) Analysis
, 2005
"... Worstcase execution time (WCET) prediction for modern CPU’s cannot make local assumptions about the impact of input information on the global worstcase because of the existence of timing anomalies. Therefore, static analyses on the hardware level must consider a large subset of the reachable st ..."
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Cited by 6 (1 self)
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Worstcase execution time (WCET) prediction for modern CPU’s cannot make local assumptions about the impact of input information on the global worstcase because of the existence of timing anomalies. Therefore, static analyses on the hardware level must consider a large subset of the reachable
WCET calculations at Volvo CE
"... A prerequisite for creating a safe and predictable real time computer system is to have knowledge about its timing behavior during operation. The Worst Case Execution Time (WCET) is one of the key values to consider when predicting this timing behavior, since it ensures that every task meets its dea ..."
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A prerequisite for creating a safe and predictable real time computer system is to have knowledge about its timing behavior during operation. The Worst Case Execution Time (WCET) is one of the key values to consider when predicting this timing behavior, since it ensures that every task meets its
StatisticalBased WCET Estimation and Validation
 in Proceedings of the 9th International Workshop on WorstCase Execution Time Analysis (WCET
"... In this paper we present a measurementbased approach that produces both a WCET (Worst Case Execution Time) estimate, and a prediction of the probability that a future execution time will exceed our estimate. Our statisticalbased approach uses extreme value theory to build a model of the tail behav ..."
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Cited by 18 (0 self)
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In this paper we present a measurementbased approach that produces both a WCET (Worst Case Execution Time) estimate, and a prediction of the probability that a future execution time will exceed our estimate. Our statisticalbased approach uses extreme value theory to build a model of the tail
Results 1  10
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221