Title
Model-Driven Joint Optimization of Power and Latency Guarantee in Data center Applications.
Abstract
Cloud data centers try to achieve two primary but competing goals for latency-sensitive services: meeting latency service-level objective (SLO) and reducing energy utilization. In this paper, we perform a joint optimization of both goals, such that given a tail latency constraint and request rate, the number of active servers and their corresponding core frequencies which cause the least energy overhead can be derived. Both the server sleep mode and setup delay are taken into account. Based on the assumption that requests arrive following a Poisson process, we provide a numerical method to compute the optimal number of active servers and a closed-form expression for their corresponding core frequency. We propose how the optimization technique can be used for real, bursty, non-Poisson data center traffic.
Year
DOI
Venue
2020
10.1007/s42979-019-0030-z
SN Computer Science
Keywords
DocType
Volume
Data center application, Latency-critical applications, Tail latency, Energy efficiency, Optimization, Simulation model
Journal
1
Issue
ISSN
Citations 
1
2662-995X
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Goldwayne Smith Leh100.34
Jian Wu2296.21
Sambit Shukla300.34
Matthew Farrens451569.21
Dipak Ghosal52848163.40