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Characterization of Resource Availability on PlanetLab Nodes for Executing Migratory Tasks

By Vinit Padhye


We present here the results of our study to monitor and characterize the available resource capacities on PlanetLab nodes for scheduling and dynamic relocation of migratory tasks. The available resource capacities on PlanetLab nodes can fluctuate significantly in a short time, and a node selected to execute a task may become unsuitable for it within a short time ranging from a few minutes to an hour. One way to overcome this problem is relocate the task to another node. This requires identifying the set of nodes that are mostly likely to meet the requirements of the task for a long duration. For this purpose we have developed a system for monitoring a collection of nodes for their available resource capacities. Using this system we have conducted a study to characterize the distribution of the number of nodes that meet a given resource capacity requirement, and the distribution of the duration for which a node satisfies the requirement.

Year: 2013
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