作者: Seyed Jalal Jafari , HamidReza Naji , Masoumeh Jannatifar
DOI: 10.1007/978-3-319-76587-7_9
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摘要: Content Delivery Networks are one of the most common services in order to overcome performance problems caused by massive data requests popular web applications. CDNs improve clients’ perceived quality service placing replica servers scattered around globe and consequently redirecting users closer servers. While CDNs’ ultimate goal is delivery, their own efficiency can also be an issue investigate. Due complexity these services, plenty factors impact CDNs. As a result, measured using various metrics. In this paper we review some well-known metrics literature for evaluating We present other measures including Fairness Travel. attain overall insight about CDN, Cost Function presented which incorporates single formula.