DYNAMIC CACHE ALLOCATION

One embodiment provides a system. The system includes a processor, a cache memory, a performance monitoring unit (PMU), at least one virtual machine (VM), and cache sensitivity index (CSI) logic. The processor includes at least one core. The at least one virtual machine (VM) is to execute on at least one of the at least one core. The cache sensitivity index (CSI) logic is to allocate a cache portion to a selected VM, the allocated cache portion related to a determined cache portion, determined based, at least in part, on a CSI related to the selected VM.