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Microarchitectural
Resource Management Issues on Jongmoo
Choi Dankook
University, Gyeonggi-do, Republic of Korea
Abstract Modern computer systems make use of multiple cores
and NUMA (Non Uniform Memory Access) architecture. Since multiple cores share
various microarchitectural resources such as LLC
(Last Level Cache), memory interface and interconnect, contentions on these
resources become a serious performance bottleneck. In this paper, we explore
research issues how to manage these resources to mitigate such contentions.
We first examine the internal structure of a multicore NUMA system and
investigate interference among cores during memory accesses. Then, we discuss
several existing microarchitectural resource
management schemes such as cache partitioning, page placement, task scheduling
and virtual machine migration. In addition, we inspect diverse application
classification techniques including animal, color, and application slowdown
model that analyze the interactions among applications on microarchitectural
resources. Finally, we present our observations about how an application
affects or being affected by other applications in terms of influentiality and sensitivity. Keywords: Multicore, NUMA, Microarchitectural
resource, Contention, Application Characteristics +: Corresponding author: Ilyong Chung IT Convergence Practice (INPRA), Vol. 4, No. 1, pp. 18-29, March 2016 [pdf] |