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Given five memory partitions o

[问答题]
Given five memory partitions of 100 KB, 500 KB, 200 KB, 300 KB, and 600 KB (in order), how would each of the first-fit, best-fit, and worst-fit algorithms place processes of 212 KB, 417 KB, 112 KB, and 426 KB (in order)? Which algorithm makes the most efficient use of memory?

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a.First-fit:
b.212K is put in 500K partition
c.417K is put in 600K partition
d.112K is put in 288K partition (new partition 288K = 500K - 212K)
e.426K must wait
f.Best-fit:
g.212K is put in 300K partition
h.417K is put in 500K partition
i.112K is put in 200K partition
j.426K is put in 600K partition
k.Worst-fit:
l.212K is put in 600K partition
m.417K is put in 500K partition
n.112K is put in 388K partition
o.426K must wait
In this example, Best-fit turns out to be the best.
发表于 2018-03-23 22:07:15 回复(0)
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