A Reducing VM Migration Time in Cloud Computing by Compression Algorithm
Rumana A Shaikh, Slesha Nayak
Cloud computing, Virtualization, Live migration, Pre-copy , Post-copy,Compression
In this paper gives an overview of the different works in literature consider virtual machine migration. The different works related to virtual machine migration are classified into different categories. Some of the works that consider less explored areas of virtual machine migration are discussed in detail VM migration methodology migrates current-hosted workload from one server to another by either employing live or non-live migration pattern. In comparison to non-live migration, live migration does not suspend application services prior to VM migration process. Transferring huge numbering of unnecessary memory pages, resulting into increase in the total migration time and downtime. Memory compression a faster migration technique is the second step of a combine approach various compression method named RLE, Huffman Coding, MEMCOM , WKdm and LZ are classified Proposed approach of modifying optimized pre copy will reduce unnecessary transfer of pages and its combination with Characteristic Based Compression (CBC) algorithm will handle two factor viz (i) total migration time (ii) total downtime and make migration process more effective.