MECOM: Live migration of virtual machines by adaptively compressing memory pages ?
To the best of our knowledge, we are the first to exploit memory compression technique to minimize the downtime and total migration time of live migration. By analyzing memory page characteristics, we implement an adaptive memory compression approach to tune migration performance of virtual machines. A zero-aware characteristics-based compression (CBC) algorithm is designed for live VM migration. Memory compression is adaptive to network bandwidth, then the performance of live VM migration still keeps good in diverse network environments with different available network bandwidth. Experiment results demonstrate that compared with Xen, our approach can significantly reduce downtime, total migration time, and total transferred data by 27.1%, 32% and 68.8% respectively.
live migration virtual machine compression algorithm pre-copy