Avaliação de desempenho de plataforma de provisionamento de contêineres de virtualização para computação em nuvem

Abstract

Systems with cloud-based architectures has grown in recent years, mainly because they provide a scalable platform, robust service and low-cost. The key technology for cloud computing is virtualization, which enabled the creation of virtual hardware environments simulating physical servers. Virtualization systems enable server infrastructure to be better leveraged, reducing costs and making server maintenance easier. Virtualizers, such as Xen and KVM, are used in computing resource virtualization but are also known to penalize cloud infrastructure with overheads. In contrast, container-based virtualizers such as LXC and Docker are proving to be promising to be used as a basis for delivering cloud services because they use fewer resources to simulate isolated environments. Several studies have evaluated the impact of the virtualization layer on services hosted within the virtualized infrastructure and it is important to know how different applications are affected by virtualization techniques. This paper proposes a performance evaluation of a container-based virtualization platform, Docker, to characterize resource utilization in cloud computing scenarios. Different workloads were applied considering different service models. The results highlight Docker’s good resource management in simple mode. However, there is evidence of resource exhaustion when the Swarm mode is active.