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In contemporary days, as the society develops, more indicators tend to be unpersuasive when it comes to measuring sustainability. Moreover, in order to gain a comprehensive indicator system, the indicator per seis expected to be extensive rather than specific. In this paper, a new comprehensive indicator system (PRETEC) is created and an original model (Fu's model) combining Principal Component Analysis...
Live data migration is an important technique for key-value stores. However, due to the stateful feature, new virtualization technology, stringent low latency requirements and unexpected workload changes, key-value stores deployed in cloud environment have to face new challenges for data migration: effects of VM interference, and the need to trade off between the two ingredients of migration cost,...
PaaS is one of the most popular paradigms of cloud computing and the performance guarantee of PaaS-oriented applications has been critically concerned. Performance models, such as a Layer Queue Network (LQN) model, are efficient at performance guaranteeing in a highly dynamic computing environment for their capabilities of capacity planning. However, it is not a trivial work to build and employ such...
E-business systems, like Web based systems, usually use application server (AS) to support remote communication between heterogeneous systems. AS will certainly introduce great performance impacts to them transparently. This paper provides an impacts separation framework to automatically include these impacts into the application architecture. AS impacts are separated into isolated aspects and stored...
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