A Novel Hybrid-Copy Algorithm for Live Migration of Virtual Machine
AbstractLive migration of virtual machines is an important approach for dynamic resource scheduling in cloud environment. The hybrid-copy algorithm is an excellent algorithm that combines the pre-copy algorithm with the post-copy algorithm to remedy the defects of the pre-copy algorithm and the post-copy algorithm. Currently, the hybrid-copy algorithm only copies all memory pages once in advance. In a write-intensive workload, copy memory pages once may be enough. However, more iterative copy rounds can significantly reduce the page faults in a read-intensive workload. In this paper, we propose a new parameter to decide the appropriate time to stop the iterative copy phase based on real-time situation. We use a Markov model to forecast the memory access pattern. Based on the predicted results and the analysis of the actual situation, the memory page transfer order would be adjusted to reduce the invalid transfers. The novel hybrid-copy algorithm is implemented on the Xen platform. The experimental results demonstrate that our mechanism has good performance both on read-intensive workloads and write-intensive workloads. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Lei, Z.; Sun, E.; Chen, S.; Wu, J.; Shen, W. A Novel Hybrid-Copy Algorithm for Live Migration of Virtual Machine. Future Internet 2017, 9, 37.
Lei Z, Sun E, Chen S, Wu J, Shen W. A Novel Hybrid-Copy Algorithm for Live Migration of Virtual Machine. Future Internet. 2017; 9(3):37.Chicago/Turabian Style
Lei, Zhou; Sun, Exiong; Chen, Shengbo; Wu, Jiang; Shen, Wenfeng. 2017. "A Novel Hybrid-Copy Algorithm for Live Migration of Virtual Machine." Future Internet 9, no. 3: 37.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.