Dr. Tao Zheng

Postdoctoral Fellow



Dr. Marin Litoiu
Dr. Murray Woodside 

Research Interests
  • Dynamic resource management in cloud environment
  • Real time performance monitoring
  • Model building, tracking and optimizing in autonomic computing systems
  • Automated model generating and simplifying from transaction traces for web service applications
  • Performance modeling of distributed software, based on layered queuing network (LQN) models


  • Ph.D. (Electrical Engineering),  Nov. 2007. Carleton University, Ottawa, Canada
  • Master of Engineering, Nov. 2002. Carleton University, Ottawa, Canada


  • Tao Zheng, “Model-based Dynamic Resource Management for Multi Tier Information Systems”, PhD thesis, Aug. 2007
  • Tao Zheng, "Optimization of Distributed Real-Time Systems with Scenario Deadlines", M. Eng thesis, Aug. 2002


  • Tao Zheng, Marin Litoiu, Murray Woodside, “Integrated Estimation and Tracking of Performance Model Parameters and their Trends,” The 2nd ACM/Spec International Conference on Performance Engineering, Karlsruhe, Mar. 2011
  • Tao Zheng, Murray Woodside, Marin Litoiu, “Performance Model Estimation and Tracking using Optimal Filters”, IEEE Transaction of Software Engineering , Vol. 34, No.3, May/June 2008
  • Murray Woodside, Tao Zheng, Marin Litoiu, “Service System Resource Management Based on a Tracked Layered Performance Model”, The 3rd IEEE International Conference on Autonomic Computing, Dublin, Ireland June 2006
  • Tao Zheng, Jinmei Yang, Murray Woodside, Marin Litoiu, Gabriel Iszlai, “Tracking Time-Varying Parameters in Software Systems with Extended Kalman Filters”, Proceedings of CASCON 2005, Toronto, Oct. 2005
  • Murray Woodside, Tao Zheng, Marin Litoiu , “The Use of Optimal Filters to Track Parameters of Performance Models”, Proceedings of 2nd International Conference on Quantitative Evaluation of Systems (QEST05), Torino, Sept. 2005
  • Tao Zheng, Murray Woodside, “Fast Estimation of Probabilities of Soft Deadline Misses in Layered Software Performance Models”, 5th International Workshop on Software and Performance, Palma de Mallorca, Illes Balears, SPAIN , July 2005
  • Litoiu M., Woodside M., Zheng T., “Hierarchical model based autonomic control of software systems,” Proceedings of Design and Evolution of Autonomic Software (DEAS’05) Workshop, St. Louis, USA, May 2005
  • Tao Zheng, Murray Woodside, "Heuristic Optimization of Scheduling and Allocation for Distributed Systems with Soft Deadlines", Proceedings of 13th International Conference on Computer Performance Evaluation, Modelling Techniques and Tools (TOOLS 2003), Urbana, Illinois, USA, Sept 2003, pp 169-181, vol. LNCS 2794, Lecture Notes in Computer Science, Springer-Verlag, 2003
  • T. Zheng, G. Wainer, “Implementing Finite State Machines Using the CD++ toolkit”, Student papers workshop. 2003 Summer Simulation Multiconference. Montreal, QC. 2003