ACM Computing Surveys (CSUR)
Towards a world-wide civilization of objects
EW 7 Proceedings of the 7th workshop on ACM SIGOPS European workshop: Systems support for worldwide applications
Post-copy based live virtual machine migration using adaptive pre-paging and dynamic self-ballooning
Proceedings of the 2009 ACM SIGPLAN/SIGOPS international conference on Virtual execution environments
Post-copy live migration of virtual machines
ACM SIGOPS Operating Systems Review
Program Ultra-Dispatcher for launching applications in a customization manner on cloud computing
Journal of Network and Computer Applications
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Dynamic process migration supports load sharing and processor fault tolerance. We present the new freeze free algorithm for process migration, which uses six techniques to: reduce process migration latency by an order of magnitude to 19.9 ms, effectively eliminate message freeze times, and to support processor fault tolerance. The freeze free algorithm resumes execution after the transfer of four items: the combined process control and execution state, the current code page, the current heap page, and the current code page. The algorithm effectively eliminates message freeze time by separating the process state from the communication state, and thus allows message processing to proceed in parallel with process migration. The algorithm eliminates old host residual dependencies by flushing old host resident, modified data; while the process executes in parallel on the new host. The paper analyzes the costs in both the process migration latency period and the cross-network demand paging operations, and identifies further cost reductions. This paper demonstrates that small overhead is needed for good load sharing system speedup by measuring the impact of increasing overhead an speedup.