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CS604GDB opening date 6 feb and closing date 7th feb

Graded Discussion board

 

GDB of CS604 will be conducted on Thursday, 07 February, 2019. It will remain open for two days.

 

GDB Topic

Consider a situation in which system is using demand paging technique to load pages from Swap Space to Main Memory. Let’s suppose that a process needs to be loaded in Main Memory. Initially, there are no pages of that process in Main Memory and no free frames are available in main memory.

In that situation, which technique will be used so that process can be loaded in the main memory without affecting the degree of multi-programming and either the page fault rate will increase or decrease thereby increasing or decreasing the performance of system?  

You are required to give your own opinion. Keep your answer precise and to the point and should not exceed 6 to 8 lines.

Views: 3561

Replies to This Discussion

Permalink Reply by Ali73 on February 3, 2019 at 11:09am

any Idea guys?

Permalink Reply by Kaleem Ullah Khan on February 4, 2019 at 11:19am

well first of all we have to read Demand Paging in Lecture 38 and watch that lecture as well.

Permalink Reply by muhammad salman khan on February 4, 2019 at 1:18pm

plz gdb share

Permalink Reply by Ali73 on February 4, 2019 at 4:28pm

so page replace technique will be use to get pages from disk into main main memory.

What about page fault rate?

Permalink Reply by Ali73 on February 4, 2019 at 5:13pm

will page fault increases or decreases what you think kalimullah?

Permalink Reply by Kaleem Ullah Khan on February 5, 2019 at 6:46pm

so far what i studied. page fault rate will decrease.

Permalink Reply by Ali73 on February 5, 2019 at 3:18pm

CS604 GDB solution IDEA

Page Fault and Page Replacement Technique | demand paging | CS604 GDB

https://youtu.be/zyd5GgFWSY0

Permalink Reply by Ali73 on February 5, 2019 at 9:21pm
how ?
Permalink Reply by Ali73 on February 5, 2019 at 9:23pm
how page fault decreases ? Kalimullah give some suggestions
Permalink Reply by Kaleem Ullah Khan on February 5, 2019 at 10:12pm

Good page replacement algo will decrease the chances of page fault hence page fault rate will decrease

???

Permalink Reply by Kaleem Ullah Khan on February 6, 2019 at 9:08pm

Watch lecture 39 at 25 min nto 30 min to find out how page fault rate reduce

Permalink Reply by Ali73 on February 6, 2019 at 10:15pm
Kalimullah Watch at 30 min to 31 min. he says that we can reduce the page fault by increasing the number of frames in main memory. as we know in our scenario there are no free frames so the number of page fault going to increase thats why page fault rate also increases.

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