Heterogeneous Memory Management in Datacenter

Heterogeneous memory management combined with server virtualization in data-centers is expected to increase the software and OS management complexity. State-of-the-art solutions for both virtualized and non-virtualized systems rely exclusively on the expensive page migrations techniques, limiting the benefits from heterogeneity. To address this, we design HeteroOS, a novel application-transparent OS-level solution for managing memory heterogeneity in a virtualized system. Evaluation of HeteroOS with memory, storage, and networkintensive datacenter applications show up to 2x performance improvement compared to the state-of-the-art page migration techniques.