Questions on Paging and Virtual Memory | L 43 | Operating System | GATE 2022 CSE

[@sandipsarkar1516]

You are the finest teacher I have ever come across ❤❤❤❤. Thank you sir for giving such a quality content

[@mayanksharma5540]

Start 7:06

[@ishratkaur1605]

At 29:50, sir says that optimal page size is half of page entry size... why is it so ?

[@anglotaj]

At 19:40 , Sir I have one doubt, in qn 3 additional qn, why page table entry size taken as 32 bits, could you explain?

[@the_iota_edits]

Because in question it is given that the one page table entry is of 4B so 4B = 32 bits thats why

[@hey.mishaaa]

best teacher on yt thank you so much 😀

[@GateCse-2025]

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[@tirthanrti801]

In question number 5 if it is given the physical address space is of 32 bits doesn't it mean the the memory is of 32 bits which is 4B?.....or 32 bits means the physical address consists of 32 bits

[@nirbhaykumarchaubey8777]

No, man!

[@nirbhaykumarchaubey8777]

This means that the memory consists of 2^32 blocks, now depending on the block size, the memory will have a storage capacity of (2^32)*(block size)

[@amardeep7714]

plz xplain anyone that how do we get no of page table entries = 4KB/8B means for PT entries we have to consider page table size na but here we r dividing to process size >>>???

[@androiddeveloper593]

How many entries are in Page Table = Process size/ one page entry size in PT

[@ishratkaur1605]

Isn't Effective Access Time dependant on Hit Ratio ?

[@adityaanand835]

nope! eff access time means access on main meory so it depends on main memory and pf also depends in m.m becoz we bring the page from sec to main so there access is required.. so both m.m and page faiult rate are needed in eff access time.

[@nirbhaykumarchaubey8777]

@ishratkaur1605, it is, but the question is that on which parameters Effective access time is directly proportional

[@sixth_sense_working]

In question no 3 if we take the three level in physical memory than it exceeds the size as 7+9+9+11=36 bit but size was already of 28 bit

[@space_ace7710]

bro the logical address is of size 36

[@tusharkumar9511]

Kab complete hogi ye?

[@ROHITKUMAR-lh4oi]

❤️❤️

[@pasupuletiraja5479]

can anyone explain me about difference between page table size and page table entry size?

[@tatu_indranil]

Page table size is the size of the whole page table and page table entry size is the size of 1 entry=frame no bits+extra bits . Page table size=No of pages*1 page table entry size

[@pasupuletiraja5479]

@@tatu_indranil thanks

[@suyashrahatekar4964]

Why did you use calculator to calculate root(2^16) bruhhh

[@surajar3912]

Question 5 from this lecture is repeated from lecture 31 question 6

[@scratch__programmers]

hello brother can you tell me the best lecture of unacdemy for theory of computation

[@GateCse-2025]

bhai hua tumhara gate crack?