Evaluating architectures for independently auditing service level agreements
Future Generation Computer Systems - Systems performance analysis and evaluation
Measuring CPU overhead for I/O processing in the Xen virtual machine monitor
ATEC '05 Proceedings of the annual conference on USENIX Annual Technical Conference
Live migration of virtual machines
NSDI'05 Proceedings of the 2nd conference on Symposium on Networked Systems Design & Implementation - Volume 2
Experimental study of virtual machine migration in support of reservation of cluster resources
VTDC '07 Proceedings of the 2nd international workshop on Virtualization technology in distributed computing
Real-time issues in live migration of virtual machines
Euro-Par'09 Proceedings of the 2009 international conference on Parallel processing
Predicting the Performance of Virtual Machine Migration
MASCOTS '10 Proceedings of the 2010 IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems
CloudNet: dynamic pooling of cloud resources by live WAN migration of virtual machines
Proceedings of the 7th ACM SIGPLAN/SIGOPS international conference on Virtual execution environments
Online strategies for intra and inter provider service migration in virtual networks
IPTcomm '11 Proceedings of the 5th International Conference on Principles, Systems and Applications of IP Telecommunications
Towards unobtrusive VM live migration for cloud computing platforms
Proceedings of the Asia-Pacific Workshop on Systems
Towards unobtrusive VM live migration for cloud computing platforms
APSys'12 Proceedings of the Third ACM SIGOPS Asia-Pacific conference on Systems
COMMA: coordinating the migration of multi-tier applications
Proceedings of the 10th ACM SIGPLAN/SIGOPS international conference on Virtual execution environments
The Wide-Area Virtual Service Migration Problem: A Competitive Analysis Approach
IEEE/ACM Transactions on Networking (TON)
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Live migration of virtual machines is an important component of the emerging cloud computing paradigm. While live migration provides extreme versatility of management, it comes at a price of degraded service performance during migration. The bulk of studies devoted to live migration of virtual machines focus on the duration of the copy phase as a primary metric of migration performance. While shorter down times are clearly desirable, the pre-copy phase imposes an overhead on the infrastructure that may result in severe performance degradation of the migrated and collocated services offsetting the benefits accrued through live migration. We observe that there is a non-trivial trade-off between minimizing the copy phase duration and maintaining an acceptable quality of service during the pre-copy phase, and introduce a new model to quantify this trade-off. We then show that using our model, an optimal migration schedule can be efficiently calculated. Finally, we simulate, using real traces, live migrations of a virtual machine running a web server and compare the migration cost using our algorithm and commonly used live-migration methods.