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In this paper, we propose a Performance Enhancement Guaranteed Cache (PEG-C) to ensure performance benefit in the worst case while achieving as good average-case performance as a regular hardware-controlled cache. Our experiments indicate that with a small number of preloaded data and a simple hardware extension, the PEG-C can guarantee performance enhancement in the worst case while achieving the...
This letter designs the performance enhancement guaranteed cache (PEG-C) for hard real-time systems. The PEG-C uses two counters to monitor the number of hits and misses at runtime to improve the average-case performance, while guaranteeing the worst-case execution time (WCET). Our experiments indicate that with a few preloaded instructions, a PEG instruction cache can achieve the same average-case...
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