[爆卦]cpu burst time意思是什麼?優點缺點精華區懶人包

為什麼這篇cpu burst time意思鄉民發文收入到精華區:因為在cpu burst time意思這個討論話題中,有許多相關的文章在討論,這篇最有參考價值!作者superhan78 (superhan)看板Grad-ProbAsk標題[理工][os]cpu...


Consider a system running ten I/O-bound tasks and one CPU-bound
task. Assume that the I/O-bound tasks issue an I/O operation once for
every millisecond of CPU computing and that each I/O operation takes
10 milliseconds to complete. Also assume that the context switching
overhead is 0.1millisecond and that all processes are long-running tasks.
What is the CPU utilization for a round-robin scheduler when:

(a) The time quantum is 1 millisecond

(b) The time quantum is 10 milliseconds

請問有人可以大概和我說這題的意思嗎…
一直不了解i/o-bound和cpu-bound的burst time在哪
看答案看不太懂 我的想法是以為每一個i/o operation
要10millisecond 所以i/o-bound是10個乘10milisecond
然後cpu-bound的burst time 看解答好像才是10milesecond
但不知是怎麼來的…

請各位高手幫一下謝謝!!

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da0910cc:我這題也有問題.... 07/20 16:54
da0910cc:就是...cpu utilitation = 07/20 16:55
da0910cc:CPU TIME用在PROCESS計算 / CPU總共時間 07/20 16:55
da0910cc:從那個定義下去想這題的話...要如何解@@? 07/20 16:56
da0910cc:感謝主~ 07/20 16:56
superhan78:我目前問題是每i/o operation要10millisecond那不太理 07/20 17:16
superhan78:解 從答案大概知道在算什麼 可是這樣的話 上面那句就不 07/20 17:17
superhan78:它的意義了 請高手解答一下謝謝!! 07/20 17:18
superhan78:有人願意幫解一下嗎 謝謝喔~~ 07/21 17:35

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