Page 1
7/21/2019 Csc369h Final Exam Reid
http://slidepdf.com/reader/full/csc369h-final-exam-reid 1/16
Page 2
7/21/2019 Csc369h Final Exam Reid
http://slidepdf.com/reader/full/csc369h-final-exam-reid 2/16
Page 3
7/21/2019 Csc369h Final Exam Reid
http://slidepdf.com/reader/full/csc369h-final-exam-reid 3/16
Page 4
7/21/2019 Csc369h Final Exam Reid
http://slidepdf.com/reader/full/csc369h-final-exam-reid 4/16
Page 5
7/21/2019 Csc369h Final Exam Reid
http://slidepdf.com/reader/full/csc369h-final-exam-reid 5/16
Page 6
7/21/2019 Csc369h Final Exam Reid
http://slidepdf.com/reader/full/csc369h-final-exam-reid 6/16
E E
R R
R R
E E
R R E IO
R R R
R
E IO
R E
R
IO
E
R
R
E
R
E
R
R
R
E E R
R R
R
E
R
IO IO
R
E IO
E T
E T
R E IO CPU T
Page 7
7/21/2019 Csc369h Final Exam Reid
http://slidepdf.com/reader/full/csc369h-final-exam-reid 7/16
It favours I/O bound processes because a processes that finish their I/Ooperations gets placed on the ready queue before processes that havebeen preempt. Thus if two processes had the same amount of executiontime in the last 6 time units, then the I/O bound process would executefirst.
Page 8
7/21/2019 Csc369h Final Exam Reid
http://slidepdf.com/reader/full/csc369h-final-exam-reid 8/16
Page 9
7/21/2019 Csc369h Final Exam Reid
http://slidepdf.com/reader/full/csc369h-final-exam-reid 9/16
Design 1:
Page 10
7/21/2019 Csc369h Final Exam Reid
http://slidepdf.com/reader/full/csc369h-final-exam-reid 10/16
Page 11
7/21/2019 Csc369h Final Exam Reid
http://slidepdf.com/reader/full/csc369h-final-exam-reid 11/16
Page 12
7/21/2019 Csc369h Final Exam Reid
http://slidepdf.com/reader/full/csc369h-final-exam-reid 12/16
Page 13
7/21/2019 Csc369h Final Exam Reid
http://slidepdf.com/reader/full/csc369h-final-exam-reid 13/16
Page 14
7/21/2019 Csc369h Final Exam Reid
http://slidepdf.com/reader/full/csc369h-final-exam-reid 14/16
Page 15
7/21/2019 Csc369h Final Exam Reid
http://slidepdf.com/reader/full/csc369h-final-exam-reid 15/16
Page 16
7/21/2019 Csc369h Final Exam Reid
http://slidepdf.com/reader/full/csc369h-final-exam-reid 16/16