@inproceedings{54da5a1a5e90450a81639feb792c90e5,
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%.",
keywords = "Cloud Computing, Congestion Control, Networks-On-Chip (NoCs), QoS",
author = "Zhicheng Yao and Xiufeng Sui and Tianni Xu and Jiuyue Ma and Juan Fang and McKee, {Sally A.} and Binzhang Fu and Yungang Bao",
note = "Publisher Copyright: {\textcopyright} 2014 IEEE.; 22nd IEEE International Symposium of Quality of Service, IWQoS 2014 ; Conference date: 26-05-2014 Through 27-05-2014",
year = "2014",
month = sep,
day = "30",
doi = "10.1109/IWQoS.2014.6914305",
language = "English",
series = "IEEE International Workshop on Quality of Service, IWQoS",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "93--98",
booktitle = "2014 IEEE 22nd International Symposium of Quality of Service, IWQoS",
address = "United States",
}