Fair-Share Class

The FSS class is used by the Fair-Share Scheduler (FSS) to manage application performance by explicitly allocating shares of CPU resources to projects. A share indicates the allocation of CPU resources for a specific project. The system tracks resource usage over time. The system reduces the allocation when the usage of resources is heavy. The system increases allocation when the usage of resources is light. The FSS schedules CPU time among the processes according to their owners' entitlements, independent of the number of processes each project owns. The FSS class uses the same priority range as the TS and IA classes. For more information, see the FSS(4) man page.