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Mobile cloud computing (MCC) is a technique for increasing the performance of mobile apps and reducing their energy consumption through code and data offloading. Developers may build MCC applications on a public cloud. The public cloud may offer economies of scale, but there are some considerations to take into account. Cloud providers charge their customers by data traffic, and wrong offloading decisions...
Cloud computing has the potential to reduce the cost of systems on the Internet. Elasticity mechanisms, such as auto-scaling, enable avoiding wastes, delivering only the necessary resources. Defining and implementing an efficient auto-scaling policy is a complex task that depends on the parameter setting, types of VM contracts and the expected workload. All those variables must be taken into account...
The perfect relationship between deployment costs and systems availability is one of the primary goals of companies that wish to provide some computer environment or service through the Internet. The question that everyone wants to know the answer is: How much may I save and still improve the availability of my system avoiding financial losses with an SLA contract breach? This paper attempts to respond...
The evaluation of dependability or performance of general systems usually relies on the assistance of stochastic modeling and simulation tools. Those software packages enables the creation of models and computation of metrics quickly and accurately. This paper introduces the Mercury tool, which is an integrated software that enables creating and evaluating Reliability Block Diagrams, Stochastic Petri...
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