Priority Division: A High-Speed Shared-Memory Bus Arbitration With Bounded Latency

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Provided by: edaa
Topic: Hardware
Format: PDF
In state-of-the-art Multi-Processor Systems-on-Chip (MPSoC), interconnect of processing elements has a major impact on the system's overall average-case and worst-case performance. Moreover, in real-time applications predictability of inter-chip communication latency is imperative for bounding the response time of the overall system. In shared-memory MPSoCs buses are still the prevalent means of on-chip communication for small to medium size Chip-Multi-Processors (CMPs). Still, bus arbitration schemes employed in current architectures either deliver good average-case performance (i.e. maximize bus utilization) or enable tight bounding of worst-case-execution time.
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