Page replacement Algorithms | LRU | Example | OS | Lec-27 | Bhanu Priya

Operating systems lectures
Page replacement methods
Least Recently Used (LRU ) explained with example

[@az1197]

The only online resource that could finally explain it in detail! Thank you so much!

[@harikagottumukkala9514]

Finally I understood this topic by your video. Thank you mam.

[@zaydabdulnasir9845]

i have a test in some few hours, and this was very helpful. thanks.

[@t.asoubanaadi8611]

It's really helpful for us even after 5 year's

[@ovipanda3401]

Today i'll take seminar abt lru... By saw ur vedio. It was so easy to understand.. Ur mam applause&appreciate me.I am so happy bcoz of u mam.. All credits goes to u.... Tq mam❤❤❤❤❤❤❤❤

[@lakshman8996]

She's explaining us it's a great thing presentation don't matter if the students are able to understand. as we all know we are very very familiar with her explanation and Don't try to change that familiarity . Hope you don't mind 😁😀 .And we always support Bhanu madam

[@rijanthapa7931]

best explaination ever on internet wow

[@mohammadyeasinalfahad5468]

Thank you very much, the video was quite helpful.
Thumbs up. Love from Bangladesh.

[@vickymronga8998]

Best greetings from Germany. We love your videos!

[@SmokeyTehBandit]

Very helpful, thanks for all the great videos

[@jananiv7105]

Thank you so much mam 🙏this video is very easy to understand and useful thanks for uploading.. make more subject related viedo

[@vidyasagarananthabotla1977]

I always watch these videos in 1.75x speed.Very helpful.Thanks

[@denissssss8579]

why so fast

[@qR7pK9sJ2t]

@@denissssss8579 Even 1.75 seems slow to me..

[@sahuji5874]

It means that u are using for revision

[@SRKDIWANE]

It's working

[@lahariudyawar2754]

Thanks for your suggestion❤️😁🙏

[@catalinobajado1520]

Well done maam! Please teach us how to compute for the failure and success ratios. Thanks❤️😊

[@devaratharaisaar2898AD]

Thank you for helping a lot mam , it is midnight and morning i have my sem exam , i understood the concept clearly .

[@shrutiharwani9665]

Very well explained! Thankyou ❤️

[@HangingGarden606]

Great job. Aced this immediately.

[@bikramghosh3167]

Thanks for such a good explanation 🙏🔥♥️

[@johnaspire6494]

at 5:24 why we checked with 4 digits to replace? in rest of the algorithm we always check from the last 3 digits before removing...???

[@Ministry_of_Tragic]

Bro actually the last three digits in some case was not least recently so we can then check with more then 3 digits and find out the least recently so she checked 4 digits

[@ify1183]

thanks alot, brilliantly explained.

[@naveenmutthana2359]

Thank u so much mam......it is very helpful and simply understand that...........🤗🤗

[@reshmasuresh6268]

Good class....I almost studied your class ...thank u very much ...teacher

[@printar8061]

Thank you for very good explanation and good english

[@arteria6536]

Thank you! you've saved my life!!

[@anuraktaghosh7740]

Your explanation is good ma'am, this example is sufficient for exams, but if someone really wants to know how LRU works then this is the gist:
1. Memory Management Unit has page table.
2. All the pages in the page table form a linked list
3. LRU algorithm requires an extremely fast hardware (obviously expensive), to segregate the pages into most recently used and least recently used pages. This segregation is done in every clock tick or page fault, thus the need for the hardware to be extremely fast. The software implementation of this is known as NFU (Not Frequently Used) which uses an aging algorithm to determine least frequently used page.
4. LRU is said to be extremely efficient but it is also equally difficult to implement, that's why people came up with work arounds.

[@thumbilive6291]

What is difference btn LRU and FIFO?

[@ranjitharajamanickam4770]

Your explanation was very clear mam.. Thanks

[@aggreym.muhebwa7077]

Thank you very much. This was very helpful

[@sahuji5874]

Very nice mam.....your videos are the best

[@khaliphajibreel7335]

Many thanks 🥰....This helps a lot.

[@19775021]

Very nice tutorial. Very easy to understand it. Thank you!

[@vidharshanam9467]

S

[@paletianvithasai2824]

Thank you mam.. it's so much helpful for me and I'm your new subscriber ❤🎉

[@hikaru_e]

Thaaanks our teacher couldn't explain the logic quite well 10 min here everything was understood

[@ansariowais5842]

Simplest and the best explanation

[@emilwallin1176]

thank you professor! this made me understand this algorithm

[@5g7uma93]

Chalaa bagaa ardham ayendhi thanks mam

[@gdguru1557]

Thank you mam ::
Today July 13 at 10am I'm having OS semester examination
I'm learning page replacement clearly from you than my Os mam..
Thanx for it❤❤

[@saitejarageti8357]

Thq ma'm....gud explanation

[@nayanbaro3312]

Now I understood completely

[@anshumansharma1069]

Most Useful ❤️🥺

[@indrajitshaw5746]

Thank you mam
You are explaining very good mam

[@cheteiwangnao1992]

Tqsm 🥰 i learnt alot frm the video

[@smmahadi9448]

coloring is good, makes a nice presentation. good job & thank you

[@lakshman8996]

She's explaining us it's a great thing presentation don't matter if the students are able to understand. as we all know we are very very familiar with her explanation and Don't try to change that familiarity . Hope you don't mind 😁😀 .And we always support Bhanu madam

[@smmahadi9448]

Actually it's matter. There is a word first impression. If you know i won't need to explain any farther. If not reply me

[@lakshman8996]

@@smmahadi9448 your right

[@lakshman8996]

@@smmahadi9448 but explanation is important

[@chiengdorkcy4851]

thanks madam, let you be my instructor through out my collage study

[@PunjabiVines]

it helped alot thanks

[@muhamadzidan317]

thank you mrs for helping my study

[@abi8330]

Tq mam very good explanation😊😊

[@kashyapdharbamulla5285]

Very nice Explanation
Thank you 🎉

[@AcademicArchive-fi4ez]

very helpful. thank you so much maam

[@meghanadasari-yw9ci]

Tq madam for clean explanation

[@rutvikpathak9010]

If any reference string is most recently used could we put in top of the RAM?

[@fasilaah]

Awesome 💙🌸

[@girishmahamuni1830]

It help,thanks alot

[@arafath8380]

Thanks a lot Mam.

[@ROHITPAWAR-kt9un]

Hi mam after the 3 palced hit is occupied then u take least vali is 2 why not 0

[@gowthamkumar7577]

Same doubt

[@Rick_Aye]

Best way to memorize how many digits you look back is by the N frames and UNIQUE values. So, if you have 3 frames, like in the example, you reference the third least recently used unique value to the left. If it's 4 frames, then it's 4th unique value.

[@saipavan77]

Thanks bro 👍

[@bhagyeshmathapati]

Hats off Bro🙏

[@Monkey.D.Luffy_4556]

🫡👍

[@Epiphany623]

Thnku bro🫡❤

[@Lucas-co3fm]

great video!!!!!!

[@alanflynn3612]

Thank you couldn't get this all understood now

[@rhodessplace8987]

Thank you! You help me alot :>!!!

[@user-ci8th5mg1x]

mam in case of 5 frames should we check 5 numbers before to get least recently used?

[@user-xp6hn5mb8l]

10Q mam i really understand more than the teacher teach me in the class

[@shivammahajan6141]

Thankuuuuu Mam 4 help

[@swathivenkatesh465]

Thanks a lot

[@shwetahundekari1711]

Thankyou so so much 💯

[@juliuskipkorirkemei1357]

good work very clear

[@chaitanyabagde3748]

So helpful video

[@hibakhan9764]

omg thank you sooo muchhhh

[@paraboy5629]

Thank you from iraq 👍❤️

[@vighaneshgaund657]

thankyou priya maam

[@ArjunSingh-vw8io]

Thank you so much mam

[@546akhilaappani9]

Gud explanation mammmmm....

[@dheenasspeech7101]

Thanks for this video madam

[@jeff-md8co]

Thanks alot !!

[@prabhathkalyan166]

Really Super Doubt Madam 7:50 Why Did You Take Another Number Mam "i mean 2 In this to check LRU

[@kholilurrahman6789]

is it the countable algorithm in LRU?

[@mazvitaselemani]

Thank you👏🏾👏🏾

[@newyorkcityjose]

Thanks a ton

[@RiuLenn]

why do you sometimes go back 3 digits and sometimes 4 digits?

[@King-ke9kj]

Yaa bro she had mistake 😂

[@abhishekacharg533]

Thanks a lot mam ☺️

[@shrur3527]

Tq so much

[@sriharsha7993]

Clean and clear

[@TuneHub-Music]

Thank you ❤

[@redvelvetreveluv955]

Thank you mam❤️

[@user-ff3zf4vy7v]

Thank you ma'am ♥️

[@swapeabi4137]

Thank u so much

[@sd-fz2ku]

Thank you 🙂

[@aureate_ir]

Thank you.

[@maheshak3738]

Thankyou ma'am ❤

[@legendary_chicken]

Thank you!

[@BGMIcamper-me]

very Good Explain

[@abhishekdewang4361]

Thank u so much mam

[@alexranjan9429]

If there are not free frames then what's change occurs

[@JyotiGupta-lg9dr]

But what is difference between FIFO and LRU
FIFO M V JO PHLE use hua tha usi ko remove kr rhe the aur isme v whi remove kr rhe hai

[@amrutagangurde5977]

TYSM❤

[@informationtechnologies2482]

Helpful👍👍

[@fakhira1898]

how to know that value in main memory or not ?

[@ahmedalilaghari8268]

thank you so much

[@viveksingh7686]

Thank you Maam

[@mustafaozdemir8646]

Thank you ;)

[@sahy10204]

Can we replace 0 in these cases as many people don't?

[@Alireza-kw6fj]

Only 30 min to final exam😢
This playlist will save me

[@khaldowski_27]

BRAVO 💪👏
Qué linda 😊