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Virtual Machine (VM) consolidation in the cloud has received significant research interest. A large body of approaches for VM consolidation in data centers resort to variants of the bin packing problem which tries to minimize the number of deployed physical machines while meeting the Service-Level-Agreement (SLA) constraints. In this paper we introduce the concept of workload delay as a Quality-of-Service...
Cloud service providers are trying to reduce their operating costs while offering their services with a higher quality via resorting to the concept of elasticity. However, the vast majority of related work focuses solely on guaranteeing the quality of service (QoS) of interactive applications such as Web services. Nevertheless, a broad range of applications have different QoS constraints that do not...
Amazon spot instances have become a very popular alternative for cost-saving in the cloud. The spot instances are prone to abrupt termination whenever the spot market price exceeds the bid price. In this paper, spot instances are resorted to in task instances' group of Amazon Elastic Map Reduce (EMR) cluster to process batch jobs with deadline. Amazon EMR makes it convenient to process Big Data with...
Although there is an extensive amount of research covering in the area of Cloud computing, the field of bioinspired cloud computing is underinvestigated when compared to the general research area. This study tries to find answers on how a biomorphic model can be implemented in the cloud in order to achieve adaptive cloud behaviour. The process of cellular differentiation where cells transform from...
Greener cloud computing has recently become an extremely pertinent research topic in academy and among practitioners. Despite the abundance of the state of the art studies that tackle the problem, the vast majority of them solely rely on simulation, and do not report real settings experience. Thus, the theoretical models might overlook some of the practical details that might emerge in real life scenarios...
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