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Lec29 Page Replacement Algorithms | LRU and optimal | Operating Systems

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  • čas přidán 29. 05. 2019
  • Discussed both the LRU(Least Recently Used) and Optimal page replacement algorithms in operating system with the help of an example. FIFO , LRU an Optimal algorithm has also been compared in terms of the number of page faults and hit ratio.
    Page Replacement Introduction |FIFO page replacement algorithm in operating system:
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Komentáře • 265

  • @vishnuvardhan2279
    @vishnuvardhan2279 Před 3 lety +253

    Can you imagine how good you explained it? I am 20 years old, my younger brother is 10 years old, he was listening to this along with me and surprisingly even he understood it! 😂 Thanks a lot, you are a real saviour for my tomorrow's OS exam! 😇

    • @HeyUPSC
      @HeyUPSC Před rokem +23

      Ye ladki ka chakkar hai Babu bhaiya

    • @parthabp2862
      @parthabp2862 Před 10 měsíci +15

      No way a 10 yo understood this !!don't simp dude

    • @itsok5188
      @itsok5188 Před 8 měsíci

      Your brother has good iq 😅

    • @ankitmatade4710
      @ankitmatade4710 Před 4 měsíci +4

      10 saal ka difference bhai mai papaji band bajaye😂😂

  • @shivalikagupta3433
    @shivalikagupta3433 Před 3 lety +126

    I think you are currently the best teacher available on youtube, whenever i search for any topic and your video reference comes, I usually choose that. I dont have to navigate to other videos then. MY query is definitely resolved. (no navigation and time wasting is best part , with efficient examples)

  • @kantanopkamkunsri327
    @kantanopkamkunsri327 Před 3 lety +57

    I have understand 9 hour before final exam Thank you very much and I still not sleep :)

  • @sudarshanpatekar5632
    @sudarshanpatekar5632 Před 2 lety +11

    When my teacher explained this today I was not able to understand anything but now I am understanding this. Your explanation is really great Mam

  • @akebu6
    @akebu6 Před 2 lety +16

    A few hours before my test and I've actually understood it. Thank you so much 🙏

  • @subhanullahdanish8680
    @subhanullahdanish8680 Před rokem +4

    2 years ago
    Thank you @Jenny's lectures CS/IT NET&JRF
    Your lectures are always so easy to follow.

  • @shaniquedavis57
    @shaniquedavis57 Před 3 lety +8

    Thank you @Jenny's lectures CS/IT NET&JRF
    Your lectures are always so easy to follow.

  • @girukalamanishrao5625
    @girukalamanishrao5625 Před 3 lety +3

    Realiable and confident on your videos for algorithms,writing this a day before my exam!!

  • @mabenyjohnson6908
    @mabenyjohnson6908 Před 6 měsíci

    I really love your way of teaching. I don’t even need to look for another video on the same topic because I have understood clearly. Thank you for making these videos available!!!

  • @ElangoMk20
    @ElangoMk20 Před 13 dny

    This post uploaded 5 years ago is helping me now. Lot thanks for you mam🎉

  • @vikasjosek8012
    @vikasjosek8012 Před 5 lety +7

    Actually, I was confused with the LRU replacement algorithm before watching this video
    your trick really helped me to understand the concept. thank you, mam...

  • @christophermg1986
    @christophermg1986 Před 4 lety +16

    I hav good marks in os thanks to u...🥳🥳

  • @sandeeppaul8312
    @sandeeppaul8312 Před 3 lety +1

    Best ever, Crystal n clear explanation on OPT scheme...Loved it. Thanks a lot.

  • @masolomatthewjoel1960
    @masolomatthewjoel1960 Před rokem +3

    this is the best teacher on youtube...am a computer science student in Uganda and madam Jenny is practically my lecturer...coz she is the best av seen....Thanks for all the work you have done...much love.

  • @johnaspire6494
    @johnaspire6494 Před 5 měsíci

    I can't express how well you explained it, it was so easy to digest after watching other videos I came here...thanks a lot

  • @shohaghossain2332
    @shohaghossain2332 Před 4 lety +3

    Mam... Thank you so much from Bangladesh 🇧🇩. Iam a 5th semester CSE student now. I start follow your valuable tutorial when I am 3rd semester for the subject Data structure. In 4th semester I follow your tutorial for computer Algorithm and Now 5th Semester follow for Operating system.Iam very Happy and satisfy to follow your tutorial and doing very good result to exam. Pray for me Mam after finish my study I got a good Job..

  • @shazleenarissa6641
    @shazleenarissa6641 Před 3 lety

    i came here 3 times already and finally understand. thankyou very much!!!

  • @manishsuthar2088
    @manishsuthar2088 Před 4 lety +4

    Thankyou so much mam your concept are easily understandable. I'm the type of student who start studying a day before exam😅😅but now i can prepare whole syllabus in a day with your lecture. Thank you once again for teaching in very easy way it really helped much.

  • @shashankbg9697
    @shashankbg9697 Před 2 lety

    Every time when my exam arrives, the previous day I sit with your videos, THE BEST

  • @vigneshs.m2161
    @vigneshs.m2161 Před 2 lety +4

    I fully saw ur dbms playlist....u saved me before exams....nd now I am going to do well in OS tooo... thanks to u....U r my life savior 🙏 U also look really beautiful 😍❤️

  • @NishantSingh-br6iu
    @NishantSingh-br6iu Před 2 lety +1

    helped me a lot ,after going through various lectures I found a masterpiece

  • @dollydolly1754
    @dollydolly1754 Před rokem +1

    I am very very very thankful to u mam u helped me a lot to known the subject. Which I have ignored listening the classes but by ignoring I have got ur channel that is so nice thing to me mam.

  • @paulshouvik
    @paulshouvik Před 5 lety +4

    Good Lecture.
    I am now able to understand LRU, Optimal Page Fault.
    Nice video. thanks for this video

  • @ravindra00
    @ravindra00 Před 6 měsíci

    That’s the best explanation I could found. Thank you 🙏

  • @user-lq4hr1bo5l
    @user-lq4hr1bo5l Před 10 měsíci +3

    many students are benefited from this channel especially to sem exams. we are not relying on our noob lectures anymore..also job of getting bucket to teacher is resolved..😉😉😉😉

    • @mynameis.aditie
      @mynameis.aditie Před 8 měsíci

      heyy do you want my handwritten Operating system notes?? I am selling it at a low price

  • @averagejoe913
    @averagejoe913 Před 3 lety +3

    If only i had found this video a year ago 😢😢. I would have passed the exam by now. Still tho. Thank you very much. You are a better teacher than those in my university that's for sure

  • @omkarpalkar2127
    @omkarpalkar2127 Před 4 lety +2

    Pehli baar mujhe lru samaj mai aaya.Very nicely explain👏👏👏

  • @HoHo-fe5jd
    @HoHo-fe5jd Před rokem

    4th year CS student, and this person saved my ass from failing miserably.

  • @linbob7431
    @linbob7431 Před 3 lety

    Thank you very much - it is easy to understand your content as you explain very well. Much appreciated...

  • @adithyab4957
    @adithyab4957 Před rokem

    Amazing Explanation...understood the concept very quickly....Thanks a lot @Jenny's lectures CS/IT NET&JRF

  • @mahizmoshood28
    @mahizmoshood28 Před 2 lety

    Wow!! I not seen all the tutorials on youtube but sofar for me you are d best and you are beautiful.
    Much love from Nigeria

  • @kEzO9O
    @kEzO9O Před 5 lety +4

    great lecture! thanks!

  • @cb350_
    @cb350_ Před 4 lety

    Thanks a lot ma'am... You made the concept very simple to understand :)

  • @JUSTINHBK007
    @JUSTINHBK007 Před 3 lety +3

    As always, great explanation, you make it very simple to understand. A small feedback, as a suggestion you could place the whiteboard to the right so you don't obstruct visibility while explaining .

  • @ShahidSheikh6366
    @ShahidSheikh6366 Před 2 lety

    Super mem i impressed with you and your teaching style. I always confused among these algorithm. Many many thanks to you.

  • @akshoykabiraj3889
    @akshoykabiraj3889 Před 4 lety

    Love the way you teach

  • @SajidAli-hb7cd
    @SajidAli-hb7cd Před 4 lety

    I am now able to understand LRU, Optimal Page Fault.
    Nice lecture . thank u so much ma'am u r good teacher in this world... " I'm from pakistan"

  • @psushma6288
    @psushma6288 Před 4 lety

    Before seeing this video I don't know Ntg but after seeing this I know everything about page replacement Tqq so much mam

  • @shantipriya3088
    @shantipriya3088 Před 2 lety

    you are so good at teaching。love from heart❤❤

  • @saramoradi8491
    @saramoradi8491 Před 2 lety

    I love you , perfect teaching

  • @football_lens_
    @football_lens_ Před rokem

    currently I''m CS student at the campus when i face problem i get solution from your video i would like to say thankyou from the bottom of my heart MJ from ethiopia

  • @pythonita8893
    @pythonita8893 Před rokem

    You are my favorite CZcams teacher

  • @nireshprabu
    @nireshprabu Před 4 lety

    Tyuu soooo muchhhhhhh♥️now I'm very clear about these techniques

  • @_KaranPolawala
    @_KaranPolawala Před 3 lety +1

    i have easily understand all topic of your lecture..
    thank you.....

  • @karthikkc943
    @karthikkc943 Před 2 lety

    Mam I love your way of explaination.
    It was very useful to many Students.thank you so much mam ❤️❤️❤️.

  • @updateberitaterkini9939
    @updateberitaterkini9939 Před 8 měsíci

    This is so clear.Thank you for this video 💟🙏

  • @beautifulworld_491
    @beautifulworld_491 Před rokem +2

    Beautifully explained. I do not think I have to revise this topic again. Superb

  • @hematullahnawabi2341
    @hematullahnawabi2341 Před 3 lety +1

    Thanks, mam your lectures are really appreciable. you are the best mam love your teaching method.

  • @lathadh3747
    @lathadh3747 Před rokem

    You are a perfect teacher..👍👍

  • @desalegnemuhaytsega2447
    @desalegnemuhaytsega2447 Před 4 lety +1

    Thank you so much mam your concept are easily understandable.

  • @user-ph5ql4eu6h
    @user-ph5ql4eu6h Před měsícem

    Insane video thank you ❤❤❤

  • @DevaKumar-uy6mf
    @DevaKumar-uy6mf Před 2 lety +4

    Where you get this huge knowledge really awesome. Your every video is very interesting and easily understandable.

  • @gilgameschvonuruk4982
    @gilgameschvonuruk4982 Před 4 lety

    Very good video, thank you, you saved me

  • @yashdoctor399
    @yashdoctor399 Před rokem +1

    Thank you mam you are great I didn't understand this topic in my collage after watching this video I understood 😀

  • @hunglethai8075
    @hunglethai8075 Před 3 měsíci +1

    GOAT Teacher

  • @goldenglowgaming2044
    @goldenglowgaming2044 Před 11 měsíci

    Thank you for this lecture this topic is very helpful for me because Saturday is my exam and I understand this topic in details and my doubt is clear

  • @shubhamdhayalkar1307
    @shubhamdhayalkar1307 Před 4 lety +1

    Thanks for the guidance

  • @monuit8938
    @monuit8938 Před rokem

    your this lecture saved my os exam

  • @evanstinashe8055
    @evanstinashe8055 Před 3 lety

    Thank you so much for your effort .................stay blessed

  • @thekidscartoons1163
    @thekidscartoons1163 Před rokem +2

    we can pay atleast a fee of 1000 rupees !!!!!!!because in clg they are taking in the amounts of lakhs and teaching nothing jenny mam is a very nice proffessor

  • @hilsCYBER
    @hilsCYBER Před 3 lety

    YOU ARE THE BEST!!!

  • @amanwarudkar9913
    @amanwarudkar9913 Před 5 lety

    Awesome explanation 👍

  • @vellorejallikattugnanas
    @vellorejallikattugnanas Před 4 lety +1

    Tnq Mam... really U did an amazing job

  • @revanthkumar9083
    @revanthkumar9083 Před rokem

    Answer vachesindhi lv u umaa umaaaaa ❣️

  • @ahmadphanda7899
    @ahmadphanda7899 Před 3 lety

    thank you ..your the best

  • @NTANETASPIRANTACADEMY
    @NTANETASPIRANTACADEMY Před 3 lety

    Thank you mam.. I struggle in the exams.. Now I clear mam

  • @vijaykrishna3565
    @vijaykrishna3565 Před rokem

    Good explanation mam👌,
    Useful for many ....

  • @allurajesh7716
    @allurajesh7716 Před rokem

    Your teaching level is excellent mam

  • @vigneshwaran568
    @vigneshwaran568 Před 4 lety +8

    mam plz reply me something thank you sooo much ur classess are easily understandable hats offffffffff thank youuuuuu sooooooooooooooooooooo much madam amazing concept wise understanding super......now i can able to solve page replacement whatever difficulties in that problem.

  • @naveen7924
    @naveen7924 Před 4 lety +1

    Hi jenny sis i just amazed by seeing way you teach the subject🤗😍 thats really awoesome....🙏🏻🙏🏻thanks alot for u efforts...., Im an clg student studying BCA degree in Loyola college in Tamilnadu at chennai. Our OS teacher will not teach like this... She wont use the chalk and board to teach , she will just display something in the screen.. And blabouring something else... 😐 , But ur really great teacher Jenny sis..🤗

  • @shreylawang3247
    @shreylawang3247 Před 5 lety +1

    Hello Mam, i have a doubt regarding DFS algorithm is that....suppose we have to find route between two nodes means starting node and the node where we have to reach has been mentioned.
    And as per your lectures i can create a simple straight route in the graph.
    Well, my question is that mam do we have to visit all of the nodes? Do we have to insert all of the nodes eventually into the stack or we can ignore some nodes in that case....Please respond.

  • @aakashbiradar7590
    @aakashbiradar7590 Před 4 lety +1

    Thanks mam you can solve my problem list recently algorithm thank you so much

  • @Ammusharwinprasad
    @Ammusharwinprasad Před 4 lety

    Hi mam you taught very well I am waiting your all video it's very useful for net preparation kindly post more videos

  • @swapniltanwais6690
    @swapniltanwais6690 Před rokem

    Dhanyawad madam jii🙌🏻🙏....nice communication ❤ aaise hi padhte rahna 😊

  • @031-srilatha8
    @031-srilatha8 Před 3 lety +1

    Very nice explanation mam, very useful to us☺️☺️☺️👏👏👏👏👏

  • @samasanivijayasree9505

    Tanku very much madem , spectacular expelnation with graet simple technique , From Meher chaitanya

  • @dollydolly1754
    @dollydolly1754 Před rokem

    Thank you so much for your help mam tomorrow is my os exam .u have helped me a lot mam

  • @MOHAMMEDNAUFERDEEN
    @MOHAMMEDNAUFERDEEN Před rokem +4

    ma'am can you please do a video on Second - chance (clock) Page - replacement algorithm and Enhanced Second- Chance Algorithm, that topics is after this but for reason it looks you skipped it. Your videos are amazing and very helpful please consider this . Thank you very much.

  • @megotnojams
    @megotnojams Před měsícem +1

    14:25 since it is almost impossible to implement, can it be used in live streaming videos?

  • @MJgamer4U
    @MJgamer4U Před 3 lety +3

    The thing is....
    U r not only teaching.....
    U r teaching "" EASILY"".... maam.....
    This is the first time I understood this without any doubt...
    U got me in ur subscribers list... 😊😊

  • @rockstargaming5415
    @rockstargaming5415 Před 2 lety

    I love this video ❣️

  • @NoOne-lj3zb
    @NoOne-lj3zb Před rokem

    Best explanation ❤️

  • @hope50_78
    @hope50_78 Před 7 měsíci

    شكرا جزيلا شرحك رائع للغايه❤❤❤
    لا اله الا انت سبحانك اني كنت من الظالمين ❤❤

  • @kavithatenneti177
    @kavithatenneti177 Před 2 lety

    Tq u
    U have explained very clearly 💓

  • @attentoaster3023
    @attentoaster3023 Před 2 lety

    They are teaching this first half-year in university in Germany, and I could puke seeing "teachers" pulling out masses of actual code or formulas to explain this to newcomers. You used lenguage and an easy to overlook table and that is exactly the right way

  • @lavanyam3224
    @lavanyam3224 Před 3 lety +1

    you're awesome Jennyyy...Love you :)

  • @tejeswarachari4973
    @tejeswarachari4973 Před rokem

    What The Explanation Mam .🎉🎉❤❤

  • @tejeswarachari4973
    @tejeswarachari4973 Před rokem

    Proud of You Mam❤🎉

  • @spandanpatil8123
    @spandanpatil8123 Před 4 měsíci +1

    Mam you are great you are the best

  • @Uday_06
    @Uday_06 Před 2 lety

    Thank u so much mam bcz of u i score out of out in os sub

  • @tinykidtube
    @tinykidtube Před rokem +1

    Amazing Dede thank you so much

  • @Creatively_Yours2
    @Creatively_Yours2 Před 8 měsíci

    Nice explanation mam... Thanks a lot

  • @mallikharjunareddyganugape9292

    Amazing talented medam I easily understand this concept tq.... Tq.... Medam

  • @prasad252
    @prasad252 Před 2 lety +1

    Thank you ma'am ⚘❤

  • @mignonneadi9189
    @mignonneadi9189 Před 4 lety +1

    U r amazing...mam...aapne mera confusion clear.....kr diya..... Thanks mam.......Aap DAA k bhi Lecture upload kijiye ...mam...

  • @esteralouch8786
    @esteralouch8786 Před 4 lety

    U r amazing Thank u very much please add more tuto for computer science

  • @jasonpot5669
    @jasonpot5669 Před 3 lety

    this is so helpful

  • @suryaprasadpadhi2525
    @suryaprasadpadhi2525 Před 3 lety +1

    Thank you so much ma'am.. .

  • @kamyagupta4030
    @kamyagupta4030 Před rokem +1

    Thank you ❤

  • @sasmitabehera9521
    @sasmitabehera9521 Před 4 lety +1

    Tq mam finally I am understand