作者sky810675 (KKMAN)
看板TransCSI
标题[问题] 计概memory计算
时间Thu Apr 30 11:22:04 2009
A multiprogramming OS uses paging. The available momory is 32KB divided into 8
frames, each of 4 KB. The first program needs 5 KB. The second needs 8KB.
The third program needs 14KB.
a.how many frames are used by the first program?
b.how many frames are used by the second program?
c.how many frames are used by the third program?
d.how many frames are unused?
e.what is the total memory(in KB)wasted?
f.what percentage of memory (in %)is wasted?
这边附上解答,帮忙解说一下过程怎麽做吧~谢谢罗
a.2 b.2 c.4 d.0 e.5KB f.15.625%
--
※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 140.128.41.204
1F：→ sherlockms:first program 需要5kb ->4KB+1KB frames不可分所以需 04/30 11:30
2F：→ sherlockms:要两个frames 看答案感觉是这样 其他类推 大概吧 04/30 11:31