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Displaying 1-7 out of 7 total
Predicting the Performance of Virtual Machine Migration
Found in: Modeling, Analysis, and Simulation of Computer Systems, International Symposium on
By Sherif Akoush, Ripduman Sohan, Andrew Rice, Andrew W. Moore, Andy Hopper
Issue Date:August 2010
pp. 37-46
With the ability to move virtual machines between physical hosts, live migration is a core feature of virtualisation. However for migration to be useful, deployable feature on a large (datacentre) scale, we need to predict migration times with accuracy. In...
Activity Based Sector Synchronisation: Efficient Transfer of Disk-State for WAN Live Migration
Found in: Modeling, Analysis, and Simulation of Computer Systems, International Symposium on
By Sherif Akoush,Ripduman Sohan,Bogdan Roman,Andrew Rice,Andy Hopper
Issue Date:July 2011
pp. 22-31
Live migration of virtual machines is now commonplace but the issue of synchronising storage remains an obstacle to wide-area migration between datacentres. We discuss the range of possible designs for synchronising disk images and argue that we have to be...
Upgrading fortran source code using automatic refactoring
Found in: Proceedings of the 2013 ACM workshop on Workshop on refactoring tools (WRT '13)
By Andrew Rice, Dominic Orchard
Issue Date:October 2013
pp. 29-32
Many of the computer models used in scientific research have been developed in Fortran over many years. This evolutionary process means these models often use deprecated language features and idioms that impede software maintenance, understandability, exte...
Characterizing and modeling the impact of wireless signal strength on smartphone battery drain
Found in: Proceedings of the ACM SIGMETRICS/international conference on Measurement and modeling of computer systems (SIGMETRICS '13)
By Andrew Rice, Daniel Wagner, Ning Ding, Xiaomeng Chen, Y. Charlie Hu
Issue Date:June 2013
pp. 29-40
Despite the tremendous market penetration of smartphones, their utility has been and will remain severely limited by their battery life. A major source of smartphone battery drain is accessing the Internet over cellular or WiFi connection when running vari...
MockDroid: trading privacy for application functionality on smartphones
Found in: Proceedings of the 12th Workshop on Mobile Computing Systems and Applications (HotMobile '11)
By Alastair R. Beresford, Andrew Rice, Nicholas Skehin, Ripduman Sohan
Issue Date:March 2011
pp. 49-54
MockDroid is a modified version of the Android operating system which allows a user to 'mock' an application's access to a resource. This resource is subsequently reported as empty or unavailable whenever the application requests access. This approach allo...
Exhausting battery statistics: understanding the energy demands on mobile handsets
Found in: Proceedings of the second ACM SIGCOMM workshop on Networking, systems, and applications on mobile handhelds (MobiHeld '10)
By Andrew Rice, Jon Crowcroft, Narseo Vallina-Rodriguez, Pan Hui
Issue Date:August 2010
pp. 9-14
Despite the advances in battery technologies, mobile phones still suffer from severe energy limitations. Modern handsets are rich devices that can support multitasking thanks to their high processing power and provide a wide range of resources such as sens...
Evaluating lateration-based positioning algorithms for fine-grained tracking
Found in: Proceedings of the 2005 joint workshop on Foundations of mobile computing (DIALM-POMC '05)
By Andrew Rice, Robert Harle
Issue Date:September 2005
pp. 54-61
Accurate, dependable location information enables new services to users and efficient message routing within a sensor network. Fine-grained location data are often degraded by prevalent multipath and varying transmission channel characteristics. Successful...