Live Virtual Machine Migration with Bandwidth Dynamic Assignment
Yiqiu Fang, Fangzhengqing Liao, Junwei Ge · 2017
In this paper, we present an algorithm that based on the probability prediction of the dirty page's Pre-Copy algorithm, bring in a prediction algorithm of the bandwidth required for the transmission of the dirty pages.Mainly in the case of mutations of dirty page, Analysis of the probability of occurrence of the dirty page in the process of migration, Obtain the adjusted bandwidth coefficient, dynamically allocates the bandwidth required for the current transmission, and reserved for later transmission bandwidth, so that the transmission process will not have the use of bandwidth imbalance or the bandwidth cannot make full use of, so that each time from the current virtual machine to reach the directory virtual machine transmission speed can be consistent as much as possible.Experiments show that the algorithm can reasonably use limited bandwidth resources, reduce iteration time and downtime, and improve the dynamic migration performance of virtual machines in the case of mutations.