Automated Control of Multiple Virtualized Resources

[摘要] Virtualized data centers enable consolidation of multiple applications and sharing of multiple resources among these applications. However, current virtualization technologies are inadequate in achieving complex service level objectives (SLOs) for enterprise applications with time-varying multiple resource demands. In this paper, we present AutoControl, a resource control system that automatically adapts to dynamic changes in a shared virtualized infrastructure to achieve application SLOs. AutoControl is a combination of an online model estimator and a novel multi-input, multi-output (MIMO) resource controller. The model estimator captures the complex relationship between application performance and resource allocation, while the MIMO controller allocates the right amount of resources to achieve application SLOs. Our experimental results using RUBiS and TPC-W benchmarks along with production-trace- driven workloads indicate that AutoControl can detect and adapt to CPU and disk I/O bottlenecks that occur over time and across multiple nodes and allocate multiple virtualized resources accordingly to achieve application SLOs. It can also provide service differentiation according to the priorities of individual applications.

[发布机构] HP Development Company

[学科分类] 计算机科学（综合）

[关键词] virtualization;consideration;service level objective;control;service differentiation