Performance Influence of Live Migration on Multi-Tier Workloads in Virtualization Environments
Live migration is a widely used technology for load balancing, fault tolerance, and power saving in cloud data centers. Previous research includes significant research work in the performance improvement of live migration. However, little work has been done to investigate the influence of live migration on virtual machine workloads that users care about most. The authors notice that these workloads can be classified into two categories: single-tier workloads and multi-tier workloads which is a typical type for internet applications. They conduct a series of deliberate experiments to investigate the influence of live migration on multi-tier workloads in a cloud environment and also on traditional physical machines for comparison.