Measurement and Control of Linux Operating System Noise on the Godson-3A Shared-Memory Multicore Platform

Author

Lei Wang ; Yulong Zhao ; Zhen Wang

Author_Institution

Sch. of Comput. Sci. & Eng., Beihang Univ. Beijing, Beijing, China

fYear

2013

fDate

13-15 Nov. 2013

Firstpage

474

Lastpage

481

Abstract

Operating system (OS) noise refers to the interference experienced by an application due to activities inside an operating system. OS noise can significantly hurt the performance of applications, especially parallel applications. We implemented a tool, noise test, to study the characteristics of OS noise on the Godson-3A shared-memory multicore platform running Linux. We found that OS noise was balanced among cores under uniform memory access (UMA) but not under non-uniform memory access (NUMA). We then implemented another tool, quietcpu, to control OS noise. Tests showed the tool could be used to effectively reduce the maximum noise durations by around 50% and the average noise duration by around 5% on our experiment platform.

Keywords

Linux; shared memory systems; Godson-3A shared memory multicore platform; Linux operating system noise; NUMA; OS noise; nonuniform memory access; parallel applications; uniform memory access; Kernel; Linux; Multicore processing; Noise; Noise measurement; Synchronization; Godson-3A; Linux; NUMA; Operating system; UMA; noise;

fLanguage

English

Publisher

ieee

Conference_Titel

High Performance Computing and Communications & 2013 IEEE International Conference on Embedded and Ubiquitous Computing (HPCC_EUC), 2013 IEEE 10th International Conference on

Conference_Location

Zhangjiajie

Type

conf

DOI

10.1109/HPCC.and.EUC.2013.74

Filename

6831956