Memory Management 3

1
Memory Management3

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2
????? ????? 3 ?- Memory Management

• Page Replacement Modeling
• Multiprogramming modeling
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3
Modeling Multiprogramming The Distance String

• Distance String (d) ????? ???? ???????, ?? ????
  ????? ??????.
• P(d) ???????? ?- d.

4
Page Replacement Modeling
5
Page Replacement Modeling
6
Predicting Page Fault Rate

• ????? ??????? F ?"? ????? ?-C.

7
(No Transcript)
8
Modeling Multiprogramming

• P ???? ?????? ?- O/I
• N ???? ???????? ????? ??????
• (Degree of Multiprogramming)
• CPU usage 1-PN

9
Modeling Multiprogramming
10
Modeling Multiprogramming

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• ??? ?????? ?????? ?? ?????
• ?????????

11
Analysis of Multiprogramming System Performance