Cache Restoration for Highly Partitioned Virtualized Systems

The economics of server consolidation have led to the support of virtualization features in almost all server-class systems, with the related feature set being a subject of significant competition. While most systems allow for partitioning at the relatively coarse grain of a single core, some systems also support multiprogrammed virtualization, whereby a system can be more finely partitioned through time-sharing, down to a percentage of a core being allotted to a virtual machine. When multiple virtual machines share a single core however, performance can suffer due to the displacement of microarchitectural state.

Provided by: IBM Topic: Virtualization Date Added: Jan 2012 Format: PDF

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