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Supporting NUMA-Aware I/O in Virtual Machines | IEEE Journals & Magazine | IEEE Xplore

Supporting NUMA-Aware I/O in Virtual Machines


Abstract:

In a nonuniform memory access (NUMA) system, I/O to a local interconnect is more efficient than I/O to a remote interconnect. Managing resources of virtual machines (VMs)...Show More

Abstract:

In a nonuniform memory access (NUMA) system, I/O to a local interconnect is more efficient than I/O to a remote interconnect. Managing resources of virtual machines (VMs) is complex in a virtualized NUMA system because multiple VMs are competing for CPU, memory, and devices spread across NUMA nodes. In this article, the authors study how to schedule VMs for better I/O on a NUMA system. They discuss the design of a NUMA-aware I/O hypervisor scheduler that aligns VMs and hypervisor threads on NUMA boundaries while extracting the most benefit from local device I/O.
Published in: IEEE Micro ( Volume: 36, Issue: 4, July-Aug. 2016)
Page(s): 28 - 36
Date of Publication: 12 August 2016

ISSN Information:


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