An equation for the seek time as a function of the seek distance is expressed in the form t = x + y√, where t is the time in milliseconds and L is the seek distance in cylinders. Given the conditions for (t = 1, L =1) and (t =18, L =4999), you obtain t =0.7561+0.2439 √ Using this formula, calculate the total seek time for the following FCFS schedule: (Round your results to the nearest whole number. Do not include decimal places nor commas in your answer.) Requests 1800 2000 580 2400 3000 200 6000 3500 1500 4900 1000 Total Distance 200 1420 1820 600 2800 5800 2500 2000 3400 3900 24440

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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what is the total seek time ?

An equation for the seek time as a function of the seek distance is
√, where t is the time in milliseconds
expressed in the form t = x + y
and L is the seek distance in cylinders.
Given the conditions for (t = 1, L =1) and (t =18, L =4999), you obtain t
=0.7561+0.2439 √
Using this formula, calculate the total seek time for the following
FCFS schedule: (Round your results to the nearest whole number. Do
not include decimal places nor commas in your answer.)
Requests Distance
1800
2000
580
2400
3000
200
6000
3500
1500
4900
1000
Total
200
1420
1820
600
2800
5800
2500
2000
3400
3900
24440
Transcribed Image Text:An equation for the seek time as a function of the seek distance is √, where t is the time in milliseconds expressed in the form t = x + y and L is the seek distance in cylinders. Given the conditions for (t = 1, L =1) and (t =18, L =4999), you obtain t =0.7561+0.2439 √ Using this formula, calculate the total seek time for the following FCFS schedule: (Round your results to the nearest whole number. Do not include decimal places nor commas in your answer.) Requests Distance 1800 2000 580 2400 3000 200 6000 3500 1500 4900 1000 Total 200 1420 1820 600 2800 5800 2500 2000 3400 3900 24440
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