Προσομοίωση υπολογιστικών νεφών
Simulation of cloud computing infrastructures
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Keywords
Υπολογιστικό νέφος ; Προσομοιωτές υπολογιστικού νέφους ; Cloudsim ; GreenCloud ; Cloud analystAbstract
Performing experiments to manage a cloud infrastructure in a real environment may not be practical due to cost and time limits and it might not provide all the flexibility needed for a test. Therefore, a cloud simulator could be a more viable choice, since it allows both researchers and cloud providers alike to examine and predict the influence of modifying individual components on the operation of such a system. This paper focuses on the analysis of simulation frameworks designed to make cloud-based experimental studies easier and faster. To this day, several simulators with different attributes have been proposed and are available for use, allowing us to try out our services in a controlled and repeatable environment at no cost. However, it is still difficult to choose the most appropriate tool to evaluate the proposed research. In this paper, we have installed and analyzed three tools for cloud environments: Cloudsim, which is a de facto core simulation platform, GreenCloud for energy-oriented simulation, and CloudAnalyst for large-scale web application simulation. The three simulators are analyzed in terms of architecture, modeling elements, and simulation process.