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This paper shows that a program using a time-predictable memory system for data storage can achieve a similar worst-case execution time (WCET) to the average-case execution time (ACET) using a conventional heuristic-based memory system including a data cache. This result is useful within any embedded system where time-predictability and performance are both important, particularly hard real-time systems...
Although modeling of memory caches for the purpose of cache design and process scheduling has advanced considerably, the effects of cache sharing are still not captured by common approaches to modeling of software performance. One of the obstacles is lack of information about the relationship between cache misses, which the cache models usually describe, and the timing penalties, which the performance...
Resurgence of virtualization calls for suitable benchmark to validate the design of virtualization system. Among the virtual machines' performance, I/O especially disk I/O is the most critical one. Since I/O is a key factor that impacts virtual machine performance, this paper introduces a benchmark-vBench for disk I/O micro-performance evaluation of virtual machine. vBench is mainly consisted of serial...
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