Suppose we have the following page accesses: 1 2 3 4 2 3 4 1 2 1 1 3 1 4 and tha

Question

Suppose we have the following page accesses: 1 2 3 4 2 3 4 1 2 1 1 3 1 4 and that there are three frames within our system. Using the FIFO replacement algorithm, show in the following table the configuration of the tree frames for each step, and provide the number of page faults.?

Suppose we have the following page accesses: 1 2 3 4 2 3 4 1 2 1 1 3 1 4 and that there are three frames within our system. Using the FIFO replacement algorithm, show in the following table the configuration of the tree frames for each step, and provide the number of page faults.?

Explanation / Answer

PageFault

The above table shows how the FIFO algorithm works.

FIFO as the name suggests first in page will be removed from memory first.

Number of page faults occured is 5.

Pagefault:means if there is no place for a page to be inserted into memory one of the oldest page in the memory will be removed and new page will be inserted. this cincept is called page fault.

FIFO Step1 Step2 Step3 Step4 Step5 Step6 Step7 Step8 Step9 Step10 Step11 Step12 Step13 Step14 1 1 1 2 2 2 2 3 4 4 4 1 1 2 2 2 3 3 3 3 4 1 1 1 2 2 3 3 4 4 4 4 1 2 2 2 3 3 4

PageFault

PageFault PageFault PageFault PageFault

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