NDLI: Design and Evaluation of Traffic Filter for Token Protocol

Content Provider	IEEE Xplore Digital Library
Author	Guitao Fu Zuocheng Xing Tianlei Zhao Xiantuo Tang
Copyright Year	2011
Abstract	Cache coherence protocols play an important role in maintaining data coherence in shared-memory multiproces-sor. Token protocol provides a flexible framework for designing new coherence protocols. It features in both attributes: low-latency cache misses and no reliance on totally-ordered inter-connects. However, messages in token protocol are alwaysbroadcasted, which limits the scalability of token-based protocol. In this paper, a traffic filter is proposed to reduce the net-work traffic of token protocol. It records the information of the recently used blocks. When a miss happens, the requested blockis checked in the traffic filter, and broadcasting can be avoided if existing. With traffic filter, GETS requests are serviced by the owner node, and GETX requests are send to all the sharers. Thus only nodes holding tokens are accessed and broadcast avoided, which reduce network traffic. Experiment results show that overall, for TF256 and TF1024, the interconnect trafficis reduced by average of 34.3% and 27.9% respectively, the endpoint traffic is reduced by average of 32.6% and 26.7%respectively. Our experimentation also shows that TF256performs better than TF1024 for some applications.
Starting Page	67
Ending Page	72
File Size	396282
Page Count	6
File Format	PDF
ISBN	9781457700781
DOI	10.1109/PARELEC.2011.41
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-04-03
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protocols Coherence Runtime Bandwidth Benchmark testing Scalability Information filters endpoint traffic token protocol traffic filter network taffic interconnect traffic
Content Type	Text
Resource Type	Article

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