https://i.imgur.com/GwduLwi.jpg
https://i.imgur.com/THjuMrB.jpg
https://i.imgur.com/R82jw6I.jpg
(6)这题真的搞的我好乱啊!
<...share cache misa rate changes inverse proportionality with CMP size....>
可是答案miss rate有的有变有的不变,这句想表达的我实在抓不太到
<...if number of cores doubles for both CMPs,P1 and P2?>
字面理解是core *2,但是还是不懂要怎么做,hit time 跟着乘2吗?
答案:
AMAT(p1)=0.6+0.05*6+0.02*160=4.1
首先hit time没变,然后L1 cache miss rate没变…全部都没变
AMAT(p2)=0.6+0.05*16+0.001*160=1.56
hit time不变,L2 miss rate减半…………,从解答我完全看不出任何可以让我推
推导的东西!
麻烦各位解释一下这题………