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Adaptive and Aggressive Low Power Load Balancing for Multicore Systems

Title
Adaptive and Aggressive Low Power Load Balancing for Multicore Systems
Author
정기석
Keywords
Load balancing; Low power; Operating System; Scheduler; Multicore
Issue Date
2015-07
Publisher
Society of Digital Information and Wireless Communications
Citation
The International Conference on Electronics and Software Science (ICESS2015) , Page. 176-180
Abstract
Modern embedded systems commonly adopt a multi-core processor to provide high performance. In a multi-core processor, the operating system scheduler is in charge of migrating tasks across the multiple cores to maximize the resource utilization while minimizing the power consumption. In order to reduce power consumption further, the operating system scheduler often provides a power-saving mode which can be triggered according to some predetermined threshold value. However, it turns out that the statically fixed threshold is set to a low value which hardly triggers the power-saving mode. In this paper, we propose an adaptive and aggressive low power load balancer which makes cores enter a power-saving mode more frequently based on system condition. The proposed load balancer adjusts the threshold value for the power-saving mode taking some load balancing overhead into account. Experimental results show that the proposed load balancer enters the power-saving mode frequently to reduce power consumption by 6.81% compared to a conventional load balancer.
URI
http://sdiwc.net/digital-library/adaptive-and-aggressive-low-power-load-balancing-for-multicore-systems.htmlhttp://hdl.handle.net/20.500.11754/26100
ISBN
978-1-941968-17-8
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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