Re: [理工] [ OS ]-中山95

看板Grad-ProbAsk作者privatewind (傷神客)時間15年前 (2011/01/19 17:25)推噓1(1推 0噓 1→)

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p: page fault ratio q: modified ratio EAT = (1-p)*(memory access time) + p*( q * cond1 + (1-q)* cond2 + memory access time) - (1) ^^^^^^^^^^^^^^ 與Cond1, Cond2比太小 = memory access time + p * (q *cond1 + (1-q)*cond2) - (2) (1)若(1)可省去page fault時的memory access time，則得 EAT = (1-p)*(memory access time) + p*(q*cond + (1-q)*cond2) -(3) (3)式為原原po之答案 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 59.126.187.85

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kai5566

01/19 18:01, , 1^F

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01/19 18:02, , 2^F

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