700
社区成员
发帖
与我相关
我的任务
分享请高手解决！！这道题怎么解？？谢谢。
Suppose a processor executes at
Clock Rate = 200 MHz (5 ns per cycle), Ideal (no misses) CPI = 1.1
50% arith/logic, 30% ld/st, 20% control
Suppose that 10% of memory operations get 50 cycle miss penalty
Suppose that 1% of instructions get same miss penalty
CPI = ideal CPI + average stalls per instruction=1.1+(0.3*0.1*50)+(1*0.01*50)=3.1
58% of the time the proc is stalled waiting for memory!
问题：这里的58%是怎么得到的？？谢谢。
Clock Rate = 200 MHz (5 ns per cycle), Ideal (no misses) CPI = 1.1
50% arith/logic, 30% ld/st, 20% control
Suppose that 10% of memory operations get 50 cycle miss penalty
Suppose that 1% of instructions get same miss penalty
CPI = ideal CPI + average stalls per instruction=1.1+(0.3*0.1*50)+(1*0.01*50)=3.1
58% of the time the proc is stalled waiting for memory!
问题：这里的58%是怎么得到的？？谢谢。
...全文
请发表友善的回复…
发表回复
Ny-6000 2010-11-06
- 打赏
- 举报
我也是.
Raul_Gonzalez 2010-11-06
- 打赏
- 举报
友情Up！~ Good Luck！~
