ReCaP: A Region-Based cure for the common cold cache

Server consolidation, virtual desktop infrastructure (VDI) environments, and cloud computing trends dominate the landscape of new server purchases. Virtualization has many benefits: it increases utilization, improves security, lowers costs, and reduces management overheads. In some cases, the number of virtual machines consolidated onto a single processor has grown faster than the number of hardware threads. For example, IBM has reported a case study of consolidating 3,900 servers onto only 30 systems and VMWare case studies have reported consolidation ratios from 4:1 to 15:1. The number of partitions on each machine is expected to continue to increase.