CS Colloquium Series @ UCY
Department of Computer Science - University of Cyprus
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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
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Speaker: Dr. Michele Mazzucco |
Abstract:
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%.
Short Bio:
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.
Sponsor: The CS Colloquium Series is supported by a generous donation from  |