A Simulator to Assess Energy-Saving Techniques in Content Distribution Networks

Bostoen, Tom; Napper, Jeff; Mullender, Sape J.; Berbers, Yolande

doi:10.1007/978-3-642-55149-9_7

Cited by 2 publications

(1 citation statement)

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“…To evaluate the optimizer, we present a trace-drive CDN energy simulator [3]. The simulator is driven using real workload traces recorded by an operational telco CDN delivering IPTV to smartphones and tablets using HTTP adaptive streaming.…”

Section: Introductionmentioning

confidence: 99%

Minimizing Energy Dissipation in Content Distribution Networks Using Dynamic Power Management

Bostoen¹,

Napper²,

Mullender³

et al. 2013

2013 International Conference on Cloud and Green Computing

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The growing end-user demand for video services with superior quality on laptops, tablets, and smartphones spurs the deployment of telco content distribution networks (CDNs). Such CDNs provide scalable and bandwidth-efficient video delivery thanks to disk-packed cache servers deployed in the telco's data centers near the clients. However, a sustainable growth of these CDNs may be hindered by their lack of energy proportionality. In this paper we propose to apply dynamic power management (DPM) to the CDN's cache servers and their disks to increase the CDN's energy efficiency. We evaluate DPM using a CDN energy simulator driven by HTTP adaptivestreaming workload traces recorded by an operational CDN delivering IPTV to mobile devices. Even for a minimallyprovisioned CDN, we observe a reduction of the energy dissipation by approximately 30 % thanks to large cyclic load fluctuations characteristic of IPTV delivery.

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Section: Introductionmentioning

confidence: 99%