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GATE | GATE-CS-2007 | Question 85

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Group 1 contains some CPU scheduling algorithms and Group 2 contains some applications. Match entries in Group 1 to entries in Group 2.

     Group I                          Group II
(P) Gang Scheduling              (1) Guaranteed Scheduling
(Q) Rate Monotonic Scheduling    (2) Real-time Scheduling
(R) Fair Share Scheduling        (3) Thread Scheduling

P – 3 Q – 2 R – 1


P – 1 Q – 2 R – 3


P – 2 Q – 3 R – 1


P – 1 Q – 3 R – 2

Answer: (A)


Gang scheduling for parallel systems that schedules related threads or processes to run simultaneously on different processors. 
Rate monotonic scheduling is used in real-time operating systems with a static-priority scheduling class. The static priorities are assigned on the basis of the cycle duration of the job: the shorter the cycle duration is, the higher is the job’s priority. 
Fair Share Scheduling is a scheduling strategy in which the CPU usage is equally distributed among system users or groups, as opposed to equal distribution among processes. It is also known as Guaranteed scheduling. 

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Last Updated : 28 Jun, 2021
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