engleski

Simulation and Evaluation of Multiple Sporadic Servers Rescheduling

This paper deals with task scheduling in heterogeneous distributed embedded computer environments of renewable and timing variable resources. Real-time application performance can be considerably influenced by unexpected events in the environment. The predictive-reactive rescheduling procedure can enable significant improvements. The rescheduling procedure based on multiple server tasks enables usage of one’s own resources, but also a fast connection to nodes with appropriate performance that will soften the influence of disturbances. We developed a tool that enables simulation of application execution conditions for a given environment and extraction of better scheduling parameter settings. Numerous scheduling parameters are improved with an increase in the number of nodes available for rescheduling. We also investigate cost-effectiveness of the method based on rescheduling time cost. The results demonstrate a possibility of achieving performance improvement by tuning cost parameters.

Adaptive scheduling ; Distributed computing ; Real-time systems ; Rescheduling ; Simulation

Rad je prezentiran na skupu 2nd IFAC Conference on Embedded Systems, Computer Intelligence and Telematics (CESCIT 2015) ; Matjaž Colnarič (ur.) ; održanom od 22.-24.06.2015.g., Maribor, Slovenija.