==== Identification data ====
Title:	**Modelling and Performance Evaluation of the Network and Service Management Plane**\\
Author:	Abdelkader Lahmadi\\
e-mail:	lahmadi@loria.fr\\
Partner:	INRIA\\
Supervisor:	Olivier Festor\\
Committee: \\
Year of start:	2004\\
Year of end:	2007\\
Funding institution:	INRIA\\

==== Abstract ====
The objective of my thesis is to provide common performance metrics to evaluate the performance and the cost of management frameworks using measurement and analytical techniques for a somewhat unrealistic and realistic management scenarios.\\ 
We have focused our performance evaluation studies on the JMX (Java Management eXtensions) framework.\\

The main results of my thesis are so far:\\

  * The development of a benchmarking platform dedicated to JMX management paradigms, nevertheless it is flexible and modular enough to be extended to other management frameworks such as SNMP.
  * Based on the developed benchmarking platform, we have elaborated a delay model for the manager-agent model. Our finding is that management delays behavior follow closely a normal distribution with a small number of agents, and becomes more heavy tailed and approximates a Weibull distribution with an considerable number of agents. The delays scaling behavior is interesting because we can quantify the temporal accuracy of management data collected by a manager to a somewhat {\it maximum acceptable delay} that is considered as quality metric for time constrained monitoring system.
  * We studied the impact of JMX activities on the performance of a managed J2EE. We have identified analytical formulate to quantify this impact that put in relation three main categories of performance metrics: data access, cost and quality. The results have implications for network, as well as for services and applications management.
  * We have also elaborated analytical models for management systems performance evaluation from theoretical concerns regarding queueing models. The developed models are sufficiently general to capture management frameworks performance and provide a check on measurement results.

==== Related papers ====
  - Modeling and Performance Evaluation of the Network and Service Management Plane, Lahmadi A., Andrey L., Festor O., Inter-Domain Management, First International Conference on Autonomous Infrastructure, Management and Security Oslo Norvège 21/06/2007.
  - On the Impact of Management Instrumentation Models on Web Server Performance: A JMX Case Study, Lahmadi A., Festor O., Andrey L., Inter-Domain Management, First International Conference on Autonomous Infrastructure, Management and Security Oslo Norvège 21/06/2007.
  - On Delays in Management Frameworks: Metrics, Models and Analysis, Andrey L., Lahmadi A., Festor O., 17th IFIP/IEEE International Workshop on Distributed Systems: Operations and Management - DSOM 2006 Dublin/Ireland 22/10/2006.
  - On the Impact of Management on the Performance of a Managed System: A JMX-Based Management Case Study, Lahmadi A., Andrey L., Festor O., 16th IFIP/IEEE International Workshop on Distributed Systems: Operations and Management - Management of Ambient Networks - DSOM 2005 Barcelona/Spain 24/10/2005.

==== Additional information ====