An Implementation of Scheduler Activations on the NetBSD Operating System

This paper presents the design and implementation of a two-level thread scheduling system on NetBSD. This system provides a foundation for efficient and flexible threads on both uniprocessor and multiprocessor machines. The work is based on the scheduler activations kernel interface proposed by Anderson et al. [1] for userlevel control of parallelism in the presence of multiprogramming and multiprocessing.