Least Recently Used Lru Circuit Design For Prioritized Cache
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Least-recently-used (LRU) Circuit Design for Prioritized Cache
In modern embedded systems, real-time applications are often executed on multi-core systems that also run non real-time critical applications. It is well known that cache sharing among multi-core systems or concurrent threads running on a single CPU potentially causes real-time application execution delays. This makes the worst-case execution time (WCET) prediction of these real-time applications more difficult. An encouraging approach to address this problem is prioritized cache. Currently, the implementation of prioritized cache is done at the architectural level using cache controllers. This thesis focuses on the implementation of two prioritized LRU (least-recently-used) cache replacement policy circuits inside the cache circuit to support the prioritized cache operation. This will decrease cache latency. The circuits are implemented using the Synopsys 28nm EDK. Based on the circuit implementation, the area and power overheads associated with prioritized cache are investigated. Two prioritized LRU circuit designs are presented.
VLSI and Computer Architecture
VLSI Electronics Microstructure Science, Volume 20: VLSI and Computer Architecture reviews the approaches in design principles and techniques and the architecture for computer systems implemented in VLSI. This volume is divided into two parts. The first section is concerned with system design. Chapters under this section focus on the discussion of such topics as the evolution of VLSI; system performance and processor design considerations; and VLSI system design and processing tools. Part II of the book focuses on the architectural possibilities that have become cost effective with the development of VLSI circuits. Topics on architectural requirements and various architectures such as the Reduced Instruction Set, Extended Von Neumann, Language-Oriented, and Microprogrammable architectures are elaborated in detail. Also included are chapters that discuss the evaluation of architecture, multiprocessing configurations, and the future of VLSI. Computer designers, those evaluating computer systems, researchers, and students of computer architecture will find the book very useful.