(1) In Performance Tools, a stream of transactions generated by specific jobs or tasks. Key attributes of a workload include the number of local and remote jobs generating transactions, the number of interactive and noninteractive transactions per job, and the system resources required for each transaction.
(2) A sequence of requests, such as commands, I/O operations, and subroutine-library calls, that constitutes a unit of work being performed by a system. Workload frequently refers to work that is repeatable so that it can be used to measure performance.
(3) A group of service classes.