'Level caches' diaporamas de présentation

Multiprocessor System Interconnects

Multiprocessor System Interconnects. Allows fast communication among processors and shared memory, I/O, and peripheral devices IPMN : processors to shared memory PION : processors to I/O and peripheral devices IPCN : processors to processors. Network Characteristics.

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Appendix B Review of Memory Hierarchy

Appendix B Review of Memory Hierarchy.

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Reference stream

Reference stream. A memory reference stream is an n -tuple of addresses which corresponds to n ordered memory accesses. A program which accesses memory locations 4, 8 and then 4 again would be represented as (4,8,4). Locality of reference.

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PIPP: Promotion/Insertion Pseudo-Partitioning of Multi-Core Shared Caches

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Performance metrics for caches

Performance metrics for caches. Basic performance metric: hit ratio h h = Number of memory references that hit in the cache / total number of memory references Typically h = 0.90 to 0.97 Equivalent metric: miss rate m = 1 -h Other important metric: Average memory access time

237 views • 23 slides

Performance metrics for caches

Performance metrics for caches. Basic performance metric: hit ratio h h = Number of memory references that hit in the cache / total number of memory references Typically h = 0.90 to 0.97 Equivalent metric: miss rate m = 1 -h Other important metric: Average memory access time

212 views • 21 slides

Performance metrics for caches

Performance metrics for caches. Basic performance metric: hit ratio h h = Number of memory references that hit in the cache / total number of memory references Typically h = 0.90 to 0.97 Equivalent metric: miss rate m = 1 -h Other important metric: Average memory access time

210 views • 21 slides

Case Studies

Case Studies. CS 258, Spring 99 David E. Culler Computer Science Division U.C. Berkeley. Multi-Level Caches with ST Bus. Key new problem: many cycles to propagate through hierarchy Must let others propagate too for bandwidth, so queues between levels.

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Effects of Virtual Cache Aliasing on the Performance of the NetBSD Operating System

Effects of Virtual Cache Aliasing on the Performance of the NetBSD Operating System. Rafal Boni CS 535 Project Presentation. Background and motivation. Why NetBSD? Runs on > 10 CPU families, > 45 different platforms all from one code base.

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Multiprocessor System Interconnects Parallel processing demands the use of efficient system

Multiprocessor System Interconnects Parallel processing demands the use of efficient system interconnects for fast communication among multiple processors and shared memory , I/O and other devices. Hierarchical buses, crossbar switches, and multi-stage networks

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