My Ph.D. research is using queueing networks to model computer systems and mean value analysis algorithms to evaluate the performance of computers and networks.
The figure illustrates an approximate queueing system with load-dependent queues — paper.
Selected publications:
• L. Zhang and D.G. Down, APEM – approximate performance evaluation for multi-core computers, Journal of Circuits, Systems, and Computers, 28(1), 2019. link preprint
• L. Zhang and D.G. Down, SMVA: a stable mean value analysis algorithm for closed systems with load-dependent queues, Chapter 2, in the book of “Systems modeling: methodologies and tools”, EAI/Springer 2018. link preprint
• L. Zhang and D.G. Down, A stable mean value analysis algorithm for closed systems with load-dependent queues, VALUETOOLS 2016. link preprint
• L. Zhang and D.G. Down, Approximate mean value analysis for multi-core systems, SPECTS 2015. link preprint
• L. Zhang, I. Al-Azzoni and D.G. Down, PELE – an MVA-based performance evaluation methodology for computer system migration. Technical Report CAS-13-03-DD, McMaster University, 2013. preprint
• I. Al-Azzoni, L. Zhang, and D.G. Down, Performance evaluation for software migration, WOSP/SIPEW ICPE 2011. link preprint