Betriebssysteme · Institut für Systemarchitektur · Fakultät Informatik · TU Dresden



19. 03. 2012

Evaluation of migration costs in multi-core CPU scheduling


Stefan Wächtler

TU Dresden

Verteidigung der Belegarbeit

The advent of multi-core CPUs brings new challenges to operating-system schedulers. Commonly used scheduling algorithms avoid the migration of threads because of shared data structures among different CPUs. Additionally, it is believed that migrations are very costly due to private CPU caches. The goal of my work was to quantify and compare the costs of migrations and preemptions. Modern hardware was used to identify factors influencing these costs. The results of my work are compared to the observations of a paper written by Bastoni et al.
26. Jun 2018
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