[理工] 交大105計系 (14)
http://imgur.com/a/NYh4s
這一題的官方解答為ACD
我想問的是E選項
possible在邏輯上的意思其實就是exist one situation 八
如果是這樣的話
在以下情況
address request 0,1,2,3,4,5,0,1,2,3,4,5,0,1,2,3,4,5,0,1,2,3,4,5
case 1
direct map cache with 5 blocks
也就是mod 5等於 index
結果
M,M,M,M,M,M M,H,H,H,H,M M,H,H,H,H,M M,H,H,H,H,M
case 2
fully associative
結果
M,M,M,M,M,M M,M,M,M,M,M M,M,M,M,M,M M,M,M,M,M,M
所以由上可知 增加associativity 也有可能增加miss rate?
跪求大神解釋 0.0
感恩
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※ 編輯: exilelast (36.230.46.230), 01/22/2017 01:58:21
推
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推
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01/22 12:18, , 9F
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01/22 12:20, 11F
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推
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