Supporting Predictable Performance Guarantees for SMT Processors

doi:10.1587/transfun.2019EAP1146

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	Supporting Predictable Performance Guarantees for SMT Processors
	Jin, Xin 1; Yu, Ningmei 1; Zhou, Yaoyang 2; Huang, Bowen 2; Yu, Zihao 2; Zhan, Xusheng 2; Wang, Huizhe 2; Wang, Sa 2; Bao, Yungang 2
刊名	IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES
	2020-06-01
卷号	E103A 期号:6 页码:806-820
关键词	SMT interference data center performance predictability quality of service (QoS)
ISSN号	0916-8508
DOI	10.1587/transfun.2019EAP1146
英文摘要	Simultaneous multithreading (SMT) technology improves CPU throughput, but also causes unpredictable performance fluctuations for co-running workloads. Although recent major SMT processors have adopted some techniques to promote hardware support for quality-of-service (QoS), achieving both precise performance guarantees and high throughput on SMT architectures is still a challenging open problem. In this paper, we demonstrate through some comprehensive investigations on a cycleaccurate simulator that not only almost all in-core resources suffer from severe contention as workloads vary but also there is a non-linear relationship between performance and available quotas of resources. We consider these observations as the fundamental reason leading to the challenging problem above. Thus, we introduce QoSMT, a novel hardware scheme that leverages a closed-loop controlling mechanism consisting of detection, prediction and adjustment to enforce precise performance guarantees for specific targets, e.g. achieving 85%, 90% or 95% of the performance of a workload running alone respectively. We implement a prototype on GEM5 simulator. Experimental results show that the average control error is only 1.4%, 0.5% and 3.6%.
资助项目	National Key R&D Program of China[2016YFB1000201] ; National Natural Science Foundation of China[61702480] ; Primary Research & Development Plan of Shaanxi Province, China[2019TSLGY08-03] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2013073]
WOS研究方向	Computer Science ; Engineering
语种	英语
出版者	IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
WOS记录号	WOS:000537799700001
内容类型	期刊论文
源URL	[http://119.78.100.204/handle/2XEOYT63/15259]
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Yu, Ningmei
作者单位	1.Xian Univ Technol, Fac Automat & Informat Engn, Xian 710048, Peoples R China 2.Chinese Acad Sci, ICT, State Key Lab Comp Architecture, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Jin, Xin,Yu, Ningmei,Zhou, Yaoyang,et al. Supporting Predictable Performance Guarantees for SMT Processors[J]. IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES,2020,E103A(6):806-820.
APA	Jin, Xin.,Yu, Ningmei.,Zhou, Yaoyang.,Huang, Bowen.,Yu, Zihao.,...&Bao, Yungang.(2020).Supporting Predictable Performance Guarantees for SMT Processors.IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES,E103A(6),806-820.
MLA	Jin, Xin,et al."Supporting Predictable Performance Guarantees for SMT Processors".IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E103A.6(2020):806-820.