Energy-Aware Real-Time Scheduling in the Linux Kernel

被引：10
|
作者：
Scordino, Claudio [1 ]
Abeni, Luca [2 ]
Lelli, Juri [3 ]
机构：
[1] Evidence Srl, Pisa, Italy
[2] Scuola Super Sant Anna, Pisa, Italy
[3] Red Hat Inc, Raleigh, NC USA
来源：
33RD ANNUAL ACM SYMPOSIUM ON APPLIED COMPUTING | 2018年
基金：
欧盟地平线“2020”;
关键词：
DVFS; Power-Aware Scheduling; Real-Time Scheduling; Linux;
D O I：
10.1145/3167132.3167198
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
The recent changes made in the Linux kernel aim at achieving better energy efficiency through a tighter integration between the CPU scheduler and the frequency-scaling subsystem. However, in the current implementation, the frequency scaling mechanism is used only when there are no real-time tasks in execution. This paper shows how the deadline scheduler and the cpufreq subsystem can be extended to relax this constraint and implement an energy-aware real-time scheduling algorithm. In particular, we describe the design issues encountered when implementing the GRUB-PA algorithm on a real operating system like Linux. A set of experimental results on a multi-core ARM platform validate the effectiveness of the proposed implementation.
引用
收藏
页码：601 / 608
页数：8
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