Bounding SDRAM Interference: Detailed Analysis vs. Latency-Rate Analysis

Provided by: Creative Commons
Topic: Hardware
Format: PDF
The transition towards multi-processor systems with shared resources is challenging for real-time systems, since resource interference between con-current applications must be bounded using timing analysis. There are two common approaches to this problem: detailed analysis that models the particular resource and arbiter cycle-accurately to achieve tight bounds. Using temporal abstractions, such as Latency-Rate (LR) servers, to enable unified analysis for different resources and arbiters using well-known timing analysis frameworks. However, the use of abstraction typically implies reducing the tightness of analysis that may result in over-dimensioned systems, although this pessimism has not been properly investigated.

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