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2008
IEEE

Revisiting the Cache Effect on Multicore Multithreaded Network Processors

8 years 4 months ago
Revisiting the Cache Effect on Multicore Multithreaded Network Processors
Caching mechanism has achieved great success in general purpose processor; however, its deployment in Network Processor (NP) raises questions over its effectiveness under the new context. In this study, we thoroughly evaluate the performance of caches in NP with architectural features like multicore, multithread, and integrated packet interface. Our major findings include: (1) In general, a sufficiently large cache effectively reduces the number of memory requests and improves the utilization of the NP computation power. (2) The lower efficiency of private caches caused by duplicate information deteriorates the NP performance under certain circumstances. (3) The appropriate cache block size is constrained by the low spatial locality of network applications. (4) For workloads involving large amount of data movement, increasing cache size cannot bring more benefits when the bottleneck in interconnection bus is reached. In short, caching mechanism in NP can be helpful under appropriate u...
Zhen Liu, Jia Yu, Xiaojun Wang, Bin Liu, Laxmi N.
Added 19 Oct 2010
Updated 19 Oct 2010
Type Conference
Year 2008
Where DSD
Authors Zhen Liu, Jia Yu, Xiaojun Wang, Bin Liu, Laxmi N. Bhuyan
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