PhD thesis,

Cache Coherence Techniques for Multicore Processors

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Madison, WI, USA, (2008)Adviser-Hill, Mark D..

Abstract

First, we recognize that rings are emerging as a preferred on-chip interconnect. Unfortunately a ring does not preserve the total order provided by a bus. We contribute a new cache coherence protocol that exploits a ring's natural round-robin order. In doing so, we show how our new protocol achieves both fast performance and performance stability—a combination not found in prior designs.

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