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crowofblack
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加入日期: Apr 2007
您的住址: 臺灣
文章: 2
我可以認真的回答一下嗎??

L2 L3主要是給multi-core在用的,讓不同的core分享data
所以做很大(事實上做太大也是浪費)

否則cache一個就夠用了,且經時間證明32K就夠用了
因為program的locality通常沒這麼大

另外cache的結構是static ram,速度快但是難做(又貴又容易熱)
而記憶體的結構是dynamic ram,簡單好做所以可以做到很大,但速度比static ram慢上百千倍
至於硬碟更不用說了吧..
__________________

Alice Madness Returns - Sing Me to Sleep

I wonder if I've been changed in the night?
Let me think: was I the same when I got up this morning?
I almost think I can remember feeling a little different.
But if I'm not the same, the next question is "Who in the world am I?"
Ah, that's the great puzzle!

--Alice's Adventures in Wonderland
舊 2012-05-09, 02:35 PM #18
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