CS Colloquium Series @ UCY
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Colloquium Coordinator: Demetris Zeinalipour
Colloquium: Engineering Autonomic Feedback Controllers for Multiprogramming Busy Internet Servers, Dr. Michele Mazzucco (University of Cyprus, Cyprus), Wednesday, October 7th, 2009, 15:00-16:00 EET.
The Department of Computer Science at the University of Cyprus cordially invites you to the Colloquium entitled:
Engineering Autonomic Feedback Controllers for Multiprogramming Busy Internet Servers
Speaker: Dr. Michele Mazzucco
Resource multiplexing in commercial data centers is an effective way to achieve server consolidation, which can in turn increase the system's throughput as well as reduce the power consumption of Internet utilities. In this talk I will introduce a performance management model for monitoring the server's behavior and autonomically computing the optimal Multi-Programming Level (MPL) accordingly, i.e., the optimal number of jobs allowed to run concurrently, as a way to control the scheduling of jobs. Since the MPL can heavily influence the achievable performance but can not be computed off-line (it depends on several factors that can't be determined statically) a framework for autonomously controlling the MPL level is discussed. I will report the results of several experiments that have been carried out, showing that the proposed scheme can dynamically choose the 'best' MPL and reduce the average response time up to 33%.
Michele Mazzucco is currently a Marie Curie Fellow at the University of Cyprus. He received his MSc from University of Bologna (Italy) in 2005, while he earned his PhD at Newcastle University (UK) in 2009 with a thesis focused on the design of adaptive service provisioning systems subject to QoS constraints. From 2006 to 2008 he worked as a Research Associate at Newcastle University (UK) on a BT funded project, while since March 2008 he is one of the committers at the Apache Software Foundation. His research interests include distributed systems and middleware, software architectures, autonomic computing and Quality of Service. Awards include a best paper and two EU patents.
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