FlexSC: Flexible System Call Scheduling with Exception-Less System CallsFlexSC: Flexible System Call Scheduling with Exception-Less System Calls Livio Soares University of Toronto Michael Stumm University of Toronto Abstract For the past 30+ years, system calls have been the de facto interface used by applications to request services from the operating system kernel. System calls have almost uni- versally been implemented as a synchronous mechanism, where a special p
