Virtualization

Live Virtual Machine Migration With Adaptive Memory Compression

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Executive Summary

Live migration of virtual machines has been a powerful tool to facilitate system maintenance, load balancing, fault tolerance, and power-saving, especially in clusters or data centers. Although pre-copy is a predominantly used approach in the state of the art, it is difficult to provide quick migration with low network overhead, due to a great amount of transferred data during migration, leading to large performance degradation of virtual machine services. This paper presents the design and implementation of a novel MEmory-COMpression-based VM migration approach (MECOM) that first uses memory compression to provide fast, stable virtual machine migration, while guaranteeing the virtual machine services to be slightly affected.

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