[理工] 102中央計組

看板Grad-ProbAsk作者justbearcry (糯米)時間12年前 (2014/01/06 17:11)推噓1(1推 0噓 8→)

留言9則, 3人參與討論串1/2 (看更多)

1.Assume that a C program is compiled into 1000 machine instruction, which are related to the size of the executable file. Then, the average execution time is usually equal to multiplying 1000(instructions) by its average CPI and the clock cycle time. 這段敘述錯的地方是因為程式執行的指令數不一定是1000嗎? 2. The two properties critical to program correctness that are normally preserved by control dependency 這句看不太懂@_@ 是説比control dependency 更不能出錯的兩個性質? 3. 另外有關Two-level page table 它每個level只會有一個page table 被載入到記憶體所以Two level就只會有兩個page table在記憶體 Three level 就是三個這樣講有錯嗎? 謝謝了 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 42.70.132.93

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gn123

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gn123

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