作者bernachom (Terry)
看板Grad-ProbAsk
标题[问题] OS-effective acces time 计算..
时间Tue Mar 31 02:21:35 2009
The memory access tiem is 15ns. But if page fault occurs, the time
becomes 10ms. If we want the effective access time not over 25ns,
what is teh maximum page fault rate?
(1ms=10^-3 , 1ns=10^-9)
洪逸是写 15*(1-p)+p*10 *10^6ns ≦ 25ns
不太清楚那个10^6怎麽来的...印像中好像有看不同的答案
谢谢了
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1F：推 hateexam:换算成ns 1ms=10^6ns 03/31 03:20
2F：→ bernachom:谢谢您^^ 03/31 09:38