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Virtualization and just-in-time (JIT) compilation have become important paradigms in computer science to address application portability issues without deteriorating average-case performance. Unfortunately, JIT compilation raises predictability issues, which currently hinder its dissemination in real-time applications. Our work aims at reconciling the two domains, i.e. taking advantage of the portability...
The integration phase of real-time COTS-based systems is often problematic because when multiple tasks run concurrently, the interference at the bus level between cache fetching activities and I/O peripheral transactions is significant and causes unpredictable behaviors: experimentally, tasks can have computation time variance up to 50%. In this work, we present a theoretical framework able to model...
Hard real-time systems need methods to determine upper bounds for their execution times, usually called worst-case execution times. Timing anomalies are counterintuitive conditions in which a local speed-up of an instruction results in a global slow-down. Modern efficient timing analysis tools may yield inaccurate results when applied to processors with timing anomalies while methods which are suited...
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