Comparator

Compare

Hello! I am Comparator. I am here to help you know which disc scheduling Algorithm works the fastest for a given set of queries.

Simulator

Request Queue: [ ]

Please enter queries ranging from 0 to 199

Queries:

Add head:

Direction: Right:      Left:  

The Total seek time in FCFS is:

The Total seek time in CSCAN is:

The Total seek time in SCAN is:

The Total seek time in LOOK is:

The Types

The four different algorithms that we will be comparing.

FCFS

the requests are addressed in the order they arrive in the disk queue.

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SCAN

the disk arm moves into a particular direction and services the requests coming in its path and after reaching the end of disk, it reverses its direction.

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CSCAN

the disk arm again scans the path that has been scanned, after reversing its direction.

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LOOK

disk arm in spite of going to the end of the disk goes only to the last request to be serviced in front of the head and then reverses its direction from there.

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