Title
QBLESS: A case for QoS-aware bufferless NoCs
Abstract
Datacenters consolidate diverse applications to improve utilization. However when multiple applications are co-located on such platforms, contention for shared resources like Networks-on-Chip (NoCs) can degrade the performance of latency-critical online services (high-priority applications). Recently proposed bufferless NoCs have the advantages of requiring less area and power, but they pose challenges in quality-of-service (QoS) support, which usually relies on buffer-based virtual channels (VCs). We propose QBLESS, a QoS-aware bufferless NoC scheme for datacenters. QBLESS consists of two components: a routing mechanism (QBLESS-R) that can substantially reduce flit deflection for high-priority applications, and a congestion-control mechanism (QBLESS-CC) that guarantees performance for high-priority applications and improves overall system throughput. We use trace-driven simulation to model a 64-core system, finding that when compared to BLESS, a previous state-of-the-art bufferless NoC design, QBLESS improves performance of high-priority applications by an average of 33.2%.
Year
DOI
Venue
2014
10.1109/IWQoS.2014.6914305
IWQoS
Keywords
Field
DocType
networks-on-chip (nocs),network routing,computer centres,congestion control,quality of service,qbless-cc,networks-on-chip,qos,quality-of-service support,latency-critical online services,congestion-control mechanism,qos-aware bufferless noc scheme,routing mechanism,datacenters,network-on-chip,qos support,cloud computing,buffer-based virtual channels,qbless-r,routing,registers,network on chip,throughput
Qos aware,Computer science,Network routing,Computer network,Network on a chip,Quality of service,Communication channel,Real-time computing,Network congestion,Throughput,Distributed computing,Cloud computing
Conference
Citations 
PageRank 
References 
0
0.34
17
Authors
8
Name
Order
Citations
PageRank
Zhicheng Yao141.13
Xiufeng Sui2275.83
Tianni Xu341.08
Jiuyue Ma400.34
Fang Juan594.63
Sally A. Mckee61928152.59
Binzhang Fu700.34
Yungang Bao836131.11