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2. Answer the following questions related to burst time prediction. C. Estimate the burst times u...

2. Answer the following questions related to burst time prediction.

C. Estimate the burst times under the following conditions:

Tau = 12       Alpha=.75

Actual observed burst times are: 10, 15, 13, 10

D. What is the effect of the Alpha value in calculating CPU bursts?

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Answer #1

Predicted Burst time of next burst is calculated using the actual burst time of previous burst and predicted burst time of previous burst. Alpha is used to assign weightage to actual burst and predicted burst. The more the value of alpha the more weightage is given to actual burst time of previous burst.

er mula time unrel burut (ons)(lo) + (1-0.75)12 Bnelised 2nd bursd time 10.5 11-25+ 2.625 113-8731 bedicted 3aal bod time : 1

ご 0(t, + (1-0)て こ (o·75)(13) + (0.26) (13,375 13.21875 Bredictis CPU Bat time : 13.21315 eu ) ( (0.25) (13-21815 0门5)(10) + 7

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