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I know what is turn around time but i am confused why wating time is not considred as Performance Metric for Scheduling Algorithms Since it gives the time for which a Process will wait till it gets Scheduled...This can also be Performance Metric

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    $\begingroup$ It's probably also considered as a performance metric. $\endgroup$ – Yuval Filmus Sep 14 '17 at 11:18
  • $\begingroup$ (That's a lot of capital letters.) With preemption, time to first action is trivial to minimise. $\endgroup$ – greybeard Sep 14 '17 at 11:19
  • $\begingroup$ (In interactive environments, time to first (incomplete/imperfect) result definitely is a metric. Not sure about real-time.) $\endgroup$ – greybeard Sep 14 '17 at 11:22
  • $\begingroup$ Why do you think it can't be considered as a performance metric? $\endgroup$ – D.W. Sep 14 '17 at 16:22
  • $\begingroup$ I finally found out that TAT , WT, Response Time(RT) are all different methods of evulating performance of Scheduling Algorithms... Wating Time(WT) gives the time a process waits in READY state...and hence can be used for evulating diiferent Scheduling Techniques $\endgroup$ – JobLess Sep 14 '17 at 17:14

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