Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 17 Sep 2017 My Price 4.00

page replacement algorithm

Suppose that the WSClock page replacement algorithm uses a x of two ticks, and the system state is the following:

Page

Time stamp

V

R

M

0

6

1

0

1

1

9

1

1

0

2

9

1

1

1

3

7

1

0

0

4

4

0

0

0

Where the three flag bits stand for Valid, Referenced, and Modified, respectively.

(a) If a clock interrupt occurs at tick 10, show the contents of the new table entries. Explain. (You can omit entries that are unchanged.)

(b) Suppose that instead of a clock interrupt, a page fault occurs at tick 10 due to a read request to page 4. Show the contents of the new table entries. Explain. (You can omit entries that are unchanged.)

Answers

Maurice Tutor
(5)
Status NEW Posted 17 Sep 2017 06:09 AM My Price 4.00

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