Re: [理工] [計組]-中央96-資工
※ 引述《assassin88 (AI)》之銘言：
※ 引述《steven9374 (steven)》之銘言：
: A computer system has L1 and L2 cache. The local hit rates for
: L1 and L2 are 98% and 80%,respectively.The miss penalities are
: 8 and 60 cycles,respectively.(a)Assume a CPI of 1.2 without
: any cache miss and average of 1.1 memory accesses per instruction,
: what is effective CPI after cache misses are factored in?
: 請問這題如何解?
: 有看答案但是看看了不太懂
effective CPI = base CPI + additional CPI
Ans：1.2+1.1*0.02*(8+0.2*60)
答案不知道對不對..有錯請指正。
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借標題問一下
這一題的第2小題
題目說把兩LEVEL的cache 合併成一個
問這個合併後cache的 miss rate 跟 penalty？
請問為什麼高銘的解答 penalty 就直接寫60阿？
謝謝
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