推 MysterySW:第一題對 第二題就1.2/(1.2+4) 04/09 01:34
→ MysterySW:因為CPU除了執行指令外還會去作別的工作 像是IO之類的 04/09 01:34
→ MysterySW:題目問CPU在執行P時所佔時間的百分比 04/09 01:35
Suppose you wish to run a program P with 7.5x10^9 instructions on a 5GHz
machine with a CPI of 0.8.
a)What is the expected CPU time? 我算出來是1.2 想請問答案對嗎?
b)When you run P, it takes 4 seconds of wall clock time to complete.
What is the percentage of the CPU time P received?
請問b小題怎麼算啊? 我不懂它的意思耶
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