Difference between revisions of "QUANTUM"
(Created page with "'''QUANTUM''' is a system parameter that defines the following: * Processor time: maximum amount of processor time a process can receive before control...") |
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| − | + | Quantum may also refer to a [[QUANTUM (System Parameter)|system parameter]]. | |
| − | + | '''Quantum''' is the period of time during which the system allocated the CPU resource to each process that is not waiting for other resources. | |
| − | + | During its quantum, a process can execute until any of the following events occur: | |
| − | + | * The process is preempted by a higher priority process. | |
| − | + | * The process voluntarily yields the CPU by requesting a wait state for some purpose (for example, to wait for the completion of a user I/O request). | |
| − | + | * The process enters an involuntary wait state, such as when it triggers a hard page fault (one that must be satisfied by reading from disk). | |
Latest revision as of 06:23, 3 July 2019
Quantum may also refer to a system parameter.
Quantum is the period of time during which the system allocated the CPU resource to each process that is not waiting for other resources. During its quantum, a process can execute until any of the following events occur:
- The process is preempted by a higher priority process.
- The process voluntarily yields the CPU by requesting a wait state for some purpose (for example, to wait for the completion of a user I/O request).
- The process enters an involuntary wait state, such as when it triggers a hard page fault (one that must be satisfied by reading from disk).
