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Multi-core chips have been increasingly adopted by microprocessor industry. For real-time systems to safely harness the potential of multi-core computing, designers must be able to accurately obtain the WorstCase Execution Time (WCET) of applications running on multi-core platforms, which is very challenging due to the possible runtime inter-core interferences in using shared resources such as the shared L2 caches. As the first step toward time-predictable multi-core computing, this paper presents a novel approach to bounding the worst-case performance for threads running on multi-core processors with shared L2 instruction caches.
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