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operating-systemcomputer-sciencetheoryschedulerpreemptive
Aberham
Aberham

Reputation: 31

Which is more efficient preemptive or nonpreemptive scheduler?

I am just learning about preemptive and nonpreemptive schedulers so I was wondering which is more efficient a preemptive or nonpreemptive scheduler? or are they equally efficient? or are they just specialized for one task and are efficient in there own way?

Upvotes: 2

Views: 485

Answers (1)

Martin James
Martin James

Reputation: 24857

Use a non-preemtive scheduler if you want I/O and inter-thread comms to be slower than Ruby running on an abacus.

Use a preemptive scheduler if you want to be saddled with locks, queues, mutexes and semaphores.

[I've also heard that there are positive characteristics too, but you'll have to Google for that, since googling your exact title results in: 'About 55,900 results']

Upvotes: 3

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