作者: Nikolay Grozev , Rajkumar Buyya , None
关键词: Architectural pattern 、 Real-time computing 、 Provisioning 、 Cloud computing 、 User experience design 、 Scalability 、 Quality of experience 、 Virtual machine 、 Computer science 、 Distributed computing 、 Deployment environment
摘要: number of Cloud applications follow the 3-tier architectural pattern. Many them serve customers worldwide and must meet non-functional requirements such as reliability, responsiveness Quality Experience (QoE). Thus exibility scalability oered by clouds make a suitable deployment environment. Latest developments show that using multiple can further increase an application’s reliability user experience to level has not been achievable before. However, research in scheduling provisioning across is still its infancy. To foster eorts area, we propose analytical performance model Multi-Cloud environments. It takes into account persistent storage heterogeneity cloud data centres terms Virtual Machine (VM) performance. Furthermore, it allows for modelling heterogeneous workloads directed dierent centres. Based on our model, have extended CloudSim simulator, through which validate plausibility approach. The conducted experiments with RUBiS workload predicted characteristics simulation approximate well those modelled system.