We are here with you hands in hands to facilitate your learning & don't appreciate the idea of copying or replicating solutions. Read More>>

Looking For Something at vustudents.ning.com? Click Here to Search

www.bit.ly/vucodes

+ Link For Assignments, GDBs & Online Quizzes Solution

www.bit.ly/papersvu

+ Link For Past Papers, Solved MCQs, Short Notes & More


Dear Students! Share your Assignments / GDBs / Quizzes files as you receive in your LMS, So it can be discussed/solved timely. Add Discussion

How to Add New Discussion in Study Group ? Step By Step Guide Click Here.

Question 1 Marks 25
Consider a paging system with a page table stored in memory.
(a) Marks 5
If a memory reference takes 200 nanoseconds, how long does a paged reference take (reference is retrieved from page table in memory and then program data is retrieved from memory) Assume all pages are in memory?
(b) Marks 10
If we add a Translation Look-aside Buffer (TLB), and 75 percent of all page-table references are found in the TLB i.e. the TLB hit ratio is 75%, what is the effective memory reference time on average? (Assume that finding a page table entry in TLB takes 10 nanoseconds, if the entry is there.) Assume all pages are in memory.
(c) Marks 10

What is the effective memory reference time if the hit ratio for TLB is 70%, the hit ratio for memory is 20%, and 10% of the time we must go out to the disk to load the faulted page in memory, where context switching, disk transfer time takes 100 m seconds.

Question 2 Marks 10
Consider a file that is 1000 disk blocks in size. Assume that a disk block is to be appended to the end of the file, which shall cause the file size to grow to 1001 blocks. How many disks read and write operations are required to update the file and the file descriptor? Assume that the file is stored as a linked list with the pointer to the next file block stored at the end of each block. Also assume that both the file and the file descriptor are initially on disk and that file buffer cache is empty. How will your answer change if a multi-level index scheme is used instead of a linked file organization?
For this case assume that the file descriptor (i-node) can store 1000 disk block entries and each indirect block has 1024 entries ==> block 1001 is in the 1st level indirect block
Question 3
Read the attached paper titled “Time-Sharing Time Warp via Lightweight Operating System Support” and answer the following questions.
a) Marks 7
How the proposed solution is based on an ad-hoc kernel module for Linux, which implements a fine grain timer-interrupt mechanism.
b) Marks 8
Describe the effectiveness of the proposed idea in terms of improvements of the execution speed of Time Warp simulations on multi-core machines.


What is the effective memory reference time if the hit ratio for TLB is 70%, the hit ratio for memory is 20%, and 10% of the time we must go out to the disk to load the faulted page in memory, where context switching, disk transfer time takes 100 m seconds.

+ How to Follow the New Added Discussions at Your Mail Address?

+ How to Join Subject Study Groups & Get Helping Material?

+ How to become Top Reputation, Angels, Intellectual, Featured Members & Moderators?

+ VU Students Reserves The Right to Delete Your Profile, If?


See Your Saved Posts Timeline

Views: 460

.

+ http://bit.ly/vucodes (Link for Assignments, GDBs & Online Quizzes Solution)

+ http://bit.ly/papersvu (Link for Past Papers, Solved MCQs, Short Notes & More)

+ Click Here to Search (Looking For something at vustudents.ning.com?)

+ Click Here To Join (Our facebook study Group)

Replies to This Discussion

hi how are you

also this is my subject cs703

come to me and diccuss this subject 

when you will free for discussion of cs703 assignment 25th january is last date

RSS

Latest Activity

Slavoj Žižek replied to + M.Tariq Malik's discussion #PPSC #Some Full forms of Important Words : -
1 hour ago
zohaib iftikhar liked Charming HaDi's discussion FOLLOW (HEART AND BRAIN)
1 hour ago
+ ! ! AɳƓєℓ ❥ replied to +! ! ❝A̳n̳o̳n̳y̳m̳o̳u̳s̳❞ ! !+'s discussion HapPy BiRtHdaY To.. Hopuuuuuuuuuu :-* <3
1 hour ago
+ M.Tariq Malik replied to + M.Tariq Malik's discussion STA630 Assignment No 01 Fall 2019 Solution & Discussion in the group STA630 Research Methods
1 hour ago
+ M.Tariq Malik replied to + M.Tariq Malik's discussion STA630 Assignment No 01 Fall 2019 Solution & Discussion in the group STA630 Research Methods
1 hour ago
+ M.Tariq Malik replied to Waseem Aziz's discussion TOTAL QUALITY MANAGEMENT (MGT510) ASSIGNMENT Solution required in the group MGT510 Total Quality Management (alt. code=MGMT510)
1 hour ago
+ M.Tariq Malik replied to + M.Tariq Malik's discussion MGT402 GDB Fall 2019 Solution & Discussion in the group MGT402 Cost & Management Accounting
1 hour ago
+ M.Tariq Malik liked + M.Tariq Malik's discussion MCM301 Online Quiz Fall 2010 Date:27-01-2011
2 hours ago
ρяιηcε replied to Riz ge's discussion CS606 Assignment 3 fall 2019 in the group CS606 Compiler Construction
2 hours ago
+ M.Tariq Malik replied to + M.Tariq Malik's discussion MGT301 GDB Fall 2019 Solution & Discussion in the group MGT301 Principles of Marketing
2 hours ago
+ M.Tariq Malik replied to + M.Tariq Malik's discussion PAK301 Assignment No 02 Fall 2019 Solution & Discussion in the group PAK301 Pakistan Studies
2 hours ago
+ M.Tariq Malik replied to + M.Tariq Malik's discussion MGT402 GDB Fall 2019 Solution & Discussion in the group MGT402 Cost & Management Accounting
2 hours ago

© 2020   Created by + M.Tariq Malik.   Powered by

Promote Us  |  Report an Issue  |  Privacy Policy  |  Terms of Service

.