a.k.a. “time slice”
A brief period of time during which a given thread executes in a multitasking operating system before it is subject to being rescheduled against other threads at the same priority.
For each process, NT sets limits on certain system resources the process’s threads can use, including quotas for paging-file, paged-pool, and nonpaged-pool usage, etc. For example, the Memory Manager “charges quota” against the process as its threads use page-file, paged-pool, or nonpaged-pool memory; it also updates these values when threads release memory.