Question

Question

On a system with N CPU, what is the maximum number of processes that can be in running state ?

A) N process

B)Depend on the processes in ready state

C) Can't say

Answer 1

Answer is A

Since they have asked the maximum number of process, assumed that you hav infinity number of process in ready state , and out of these you need to get N such that n process can run on N process.

Comments

I am actually confused with option B) Depend on the processes in ready state

If B) option is not given then yes A) would be the answer but

 B) option

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@Habibkhan @Shubhanshu What do you think?

If option B was not given then yes answer would have A) because we can assume number of processes in ready state >= N but with option, B) given there are two choices

1) When number of processes in ready state < N , then all can be assigned to CPU

2) When number of processes in ready state >= N , then only N can be assigned to CPU

Therefore I think Option B) is true 

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Actually the thing is it is asking about "maximum number of processes that can be in running state with N processors" . Ur point is also true that if number of processes in ready state is less than N , then yes all of them can go to running state .. But then it will be less than N . 

But we have to possibility of how the maximum value can be achieved . Hence we should assume considering wht is being asked in the question .

If the question were :

The number of processes that can be in running state

In that case ur possibilities should be taken into account  . As maximum possible number of processes is being asked here , we need not bother .

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Okk ,that clears my doubt.

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What happen if we have kernel level threads/processesas they can run on two different processor.???