Abdelkader Lahmadi

Summary
Student:	Abdelkader Lahmadi
Title:	Modelling and Performance Evaluation of the Network and Service Management Plane
e-mail:	lahmadi@loria.fr
Affiliation:	INRIA
Supervisor:	Olivier Festor
Committee:
Start:	2004
End:	2007
Funding:	INRIA

Biography

PhD project description

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.

References

1. 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.
2. 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.
3. 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.
4. 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.

External links

• [_URL_ Homepage] of Abdelkader Lahmadi
• Publications of Abdelkader Lahmadi, as indexed by DBLP