Editing Response time (technology) (section)

==Real-time systems==
{{further|Real-time computing}}
In real-time systems the response time of a task or thread is defined as the time elapsed between the dispatch (time when task is ready to execute) to the time when it finishes its job (one dispatch). Response time is different from [[Worst-case execution time|WCET]] which is the maximum time the task would take if it were to execute without interference. It is also different from deadline which is the length of time during which the task's output would be valid in the context of the specific system. And it has a relation to the [[Time to first byte|TTFB]], which is the time between the dispatch and the time when the response starts.