[理工] OS effective M.A. time
In a paging system with two-level page tables,
hit ratio is 80%
search the TLB need 10 ns
memory access need 100ns
what is the effective memory access time?
解答：
0.8*(10+100)+0.2*(10+300) =150ns
我想問的是，在300是怎麼來的@@？
TLB的effective ma time公式中
失敗的存取時間不是應該為
TLB access time+2*ma time？
先感謝撥冗解答： )
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 115.80.18.86
推
01/14 15:48, , 1F
01/14 15:48, 1F
推
01/14 15:49, , 2F
01/14 15:49, 2F
→
01/14 15:51, , 3F
01/14 15:51, 3F