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Which of the functionalists listed below need to be supported by the operating system for the folling two setting : (1)handheld devices (2)real-time system 恐龍 洪逸 (1) (2) (1) (2) (a)Batch peogramming (b)Virtual memory O O(←這個應該是錯的?) (c)Time sharing O O 這一題是恐龍上面(ch.1)的習題,答案為左邊的版本。 但今天做到題目,洪逸書給的答案則是右邊的版本。 請問哪一種才是對的? 另外,有個填空..想不出來: The virtual memory treats the main memory as a fully set associative cache which uses ______ policy for handing write hits. 請指教~感謝! -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 61.57.78.152 ※ 編輯: assassin88 來自: 61.57.78.152 (01/12 23:44)
killerjoe:write back? 01/13 00:32
killerjoe:抱歉好像不是 01/13 00:33
killerjoe:剛查一下又好像是@@ 01/13 00:37
converse2006:我記得的跟樓上一樣 不'過不確定 01/13 00:56
killerjoe:因為要寫穿(write through)到disk的代價太高 01/13 08:32
killerjoe:因此採用write back的方式 01/13 08:33