Themis: A Spot-Market Based Automatic Resource Scaling Framework

International audienceCloud computing brings new provisioning models that offer applications more flexibility and better control over their resource allocations. However these models suffer from the following problem: either they provide limited support for applications demanding quality of service, or they lead to a limited infrastructure utilization. In this paper we propose Themis, a novel resource management system for virtualized infrastructures based on a virtual economy. By limiting the coupling between the applications and the infrastructure through the use of a dynamic resource pricing mechanism, Themis can support diverse types of applications and performance goals while ensuring an efficient resource usage

An Economic Approach for Application QoS Management in Clouds

International audienceVirtualization provides increased control and flexibility in how resources are allocated to applications. However, common resource provisioning mechanisms do not fully use these advantages; either they provide limited support for applications demanding quality of service, or the resource allocation complexity is high. To address this problem we propose a novel resource management architecture for virtualized infrastructures based on a virtual economy. By limiting the coupling between the applications and the resource management, this architecture can support diverse types of applications and performance goals while ensuring an efficient resource usage. We validate its use through simple policies that scale the resource allocations of the applications vertically and horizontally to meet application performance goals