Lecture 11: Context Switching in OS | Medium Term Scheduler | Orphan/Zombie Process

[@satyamjha6268]

Windows: Windows Operating System limits the number of process table entries to 65536. Linux: The maximum number of process table entries in Linux varies based on the distribution, architecture and kernel version. In general, it ranges from 32768 to 4194304.

[@farisshariff7507]

Best O.S playlist for placement, Quality Content and consistency🔥

[@amitavaghosh7201]

This level of consistency I have not seen before

[@professorop5994]

the main helpful point of this OS series is ki: jav jav old topic occurs hue hai.. wo dubara revised kraye hue hai ,, esa nahi bola ki pichli vedio dekh ke aao ( ONE OF THE GOOD PART OF THE SERIES)❤

[@vinayaksaini4996]

koi bhi babbar bhaiya ke break-up ke baare me baat nhi kr raha hai ... 😢 ab kaise ho bhaiya? hota hai sbke sath.. kaam ko priority dene wale laDko ke sath aisa jaroor hota hai.. koi baat nhi bhaiya dusri aayegi.. be positive.. . . . . . AND A BIG BIG THANKS TO BOTH OF YOU FOR THIS SERIES ❤❤ (gustaakhi maaf! 😜🙏)

[@vaibhavindoliya8139]

tujhe kese pta chala breakup ke baare mein??

[@sahilshrivastava6455]

Bhai tujhe ek bandi ki bhut need hai🤢

[@shivangairan5119]

Sabke Saath nahi hota hai ;(

[@shreyasings-rp8ui]

You are the best! Day after Tomorrow I have a job interview fealt like wouldn't be able to revise anything in os but the level of clarity with which you are teaching is phenomenal ! Seriously so helpful!!!!

[@SRIJAN_7]

@CarryMinati Who gives the Fook

[@keshavgambhir9894]

Present bhaiya Attended all os lectures till date Consistency op 🔥🔥 And amazing thumbnail 🤩🤩 Thanks a lot for all efforts

[@anushkayachit]

OS videos consistency OP !!!! keep uploading bhaiiii 🔥🔥🖤🖤

[@0708Sunshine]

Bhaiya mazza aa gya. Kaafi OP lecture tha. Agle lecture Ka behadd intezaar rahega :)

[@shaileshkaiwart7190]

Terminal me kya karte ho kuch samjh nahi aa rha. 😖😖😖

[@shrishtiprajapati3357]

this complete playlist is very beneficial the explain and notes both are soooo accurate

[@arnabsaha9277]

Started a little late but finally caught up with the course. And by the way thank you the course. Now also expecting the DBMS course to come.

[@anuragpandey8165]

Announcement done starting from June ….. Yay!

[@anuptewary3016]

Koi baat nhi love Babbar bhaiya padhai to kar na padge ga this line is Epic 🤣🤣🤣 please bhaiya video ka beech beech mein joke kar ta rakhen bhaiya maja a ta haa ❤️😁

[@CharitraAgarwal]

babbar bhaiya ka breakup ho gya or tmko maja aa rha 😥

[@kashishbagga1032]

Amazing course. Waiting for Networking course😍😍

[@aparnamanna1369]

I have not seen such level of content till now

[@ranuchaubey90]

present bhaiya! your all OS lectures are superb, thanks for all your efforts

[@hypnotizemusic998]

Lecture and consistency is good just one feedback just zoom the screen while you code on terminal it isn't visible enough to see all process happening

[@SahilRajpal19]

what a video all concepts get cleared

[@bat_man1138]

Pid_max Linux 32 bit platform- 32678 64 bit platform- 2^22

[@DeepakKumar-qw7lp]

Babbar bhaiya op 😁 break up💔 Present bhaiya ❤️

[@newbienate]

Great concise playlist. Really useful for non cs peeps

[@kms8320]

how many of you repeated the part of the video when babbar bhaiya is talking? 😁💖😍

[@Bollywood_status1889]

4 times 😁😁

[@leeavi2660]

5 times

[@motivationdii6456]

me

[@viplawkumaraniket5522]

3 times

[@ankushladani496]

Swiggy wala example was op!!!

[@nikhilbatra3671]

excellent explanation, windows -> maximum process ID is 2^24 (16,777,216)

[@0708Sunshine]

Thank you bhaiya, your efforts are highly appreciated

[@rishipreethamkarpurapu3017]

its really nice to see the hands on experience from terminal. no other creator has done it.. but it would be really good if you include terminal of windows.. since many use windows it will be easy for us to understand and also to practice by our own. just a suggestion :))

[@shashhid___98gg]

18:12 Love this banter

[@yashnarkhedkar3734]

HomeWork: The number of entries in windows process table are total 8 entries & in LINUX there are 512 entries

[@statisticsonsteroids]

source pls? cannot find

[@bhaveshkumar6842]

Bahot sahi content! ❤

[@DeepakKumar-oz5ky]

A zombie process refers to a process that has completed its execution and waiting for its parent to collect its exit status, whereas an orphan process is still in its execution phase even after its parent terminates.

[@harshjain7945]

Quality Content!!

[@abhishekrauniyar25]

Awesome explanation

[@jericodcosta2049]

Attandance marked OS considered consistent ✅

[@54_jeevankumarchoudhary55]

Sir you told that any parent process calls wait command to know the exit status of child process. What is time after which any parent process calls wait command. What are the factors that decide the time for calling wait command.

[@raghavgupta1998]

Nice video. Good hanson concept.

[@codesrhodes3757]

Really loving your efforts 🎉🎉🔥🔥

[@yashgupta4866]

Present bhaiya Not skipped a single lecture of dsa course and os course Reach++

[@kms8320]

bahot mast video he

[@poojamarmat9920]

Nice session...🙌

[@sreenija3703]

The best 🔥

[@adityasaini8437]

ultimate bhaiyaa!!

[@rakshitdevra7060]

Maza aa raha hai Padhne mai sirji

[@moment7206]

quality🔥🔥🔥

[@dipikasrivastava0204]

Best explanation

[@shantanuhallur6825]

Thank you Lakshyay Bhaiiya !!

[@dipaligangawane980]

Really very good content.

[@sherebanoburhani8939]

Best os course

[@alokranjan3185]

best os playlist

[@adityabhate8652]

Bash prg. ka bho ek course leke aao plz Awesome content!!!

[@rutvikjadhav1325]

Bahot nend aa rahi thi love bhai ka break UP sun kar nend hi cali gai 😅😂

[@dhruvabhattacharya]

[@tushargarg8622]

majja aa gaya

[@tejassavpandey7767]

The example used for context switching in the beginning (music and swiggy) is more relevant for context saving rather than context swtiching.Correct me if I am wrong.

[@leeavi2660]

awesome teaching

[@vedantdeshmukh1549]

you are a motivation for us bhaiya

[@vipulchaudhary_js]

Take care Love Bhaiya

[@abdulrazzak2934]

maza aagaya bha

[@atanmehdi6681]

Hum first hum first😅

[@siliconvalley6774]

Job Queue - Secondary Memory Ready Queue - Primary Memory

[@PrikExplains]

In last zombie process example, you are calling sleep 1 with &, why is it not created under main init process ( pid 1 ) ? Why its parent process id is still pointing to the script pid ?

[@063himanshumishra4]

Bhaiya moj kr diii

[@am_shayantan]

the way babbar said "break up" 😂😂

[@shiwani9146]

Lecture 11 completed ✅

[@praveentiwari629]

Wonderful Content ;)

[@dipeshjain7497]

The os playlist is awesome. but please try to make the video regularly like in a week at least three videos sir.

[@adityaojha2701]

In Progress.....

[@prateeksingh5719]

The default number of maximum table entries in the process table ranges from 10,000 to 32,000 in windows and 4096 in Linux.

[@TechUprise-by-Jyoti]

Thank you so much bhaiya 🙃🙃

[@raghavgupta1998]

When u have used "sleep 1&", why is the PPID != 1 ???? Ideally all sleeps should have been independent processes and zombie.sh should not have called wait() for them. Init() should have called wait for them. please explain where is the gap. Thanku in advance bhaiya.

[@sudipd]

Keep uploading vaiya

[@coderscooby]

Attendance marked sir !

[@VinodKumar-hm6do]

Amazing👍

[@vikasreddyravulapalli5562]

in the hands on of the zombie process why did we use sleep 1& instead we could use sleep 1 right?? bcz it makes the process detach from parent process rightt????

[@virajchopade552]

18.35 point to be noted

[@bittubabu25]

mera window system hai cmd run nhi ho rhaa hai ??

[@bpratikvinod8110]

A page, which is 4096 bytes on both x86 and x64, can store 512 entries on 32-bit Windows and 256 entries on 64-bit Windows.

[@ishashuklaa]

Thank you bhaiya!

[@adityacr7407]

Is on-hands part is important for the interview ?

[@somesh1934]

Present Bhaiya

[@abdulrazzak2934]

accha explain kare

[@_rishi_ranjan]

You just wrote command in terminal but did not tell anything about that program and what are it's syntax and how to write code

[@VIKASHKUMAR-mn6cs]

sir, degree of programming is no of process in ready queue or no of process in memory which can go to ready queue?

[@gena8414]

Number of processes in the ready queue.

[@not_amanullah]

Continue mern Stack 😢

[@ridhimaam6251]

With exec and child process spawned with an &, does the parent process here wait for the child processes (the zombie processes)exit status even without using wait()?

[@vishalparashar4976]

lekin bhiya mts ke to sim or phone aate the ab ye scheduling me bhi gus gya

[@devanijay9097]

Thank you sir

[@UECAshutoshKumar]

Thank You!!!!

[@mohdhammadsiddiqui]

Job queue is in secondary memory or main memory?? please confirm

[@mayurknair]

Sir what will be command for windows operating system? for trying the hands on

[@naive-fleek7420]

was here @11:29 pm finished @ 12:10 am

[@cooldude0321]

01/07/24 MTS,ZOmbie ,Orphan Process cleared++ Lakshay bhaiyaa

[@coder_21]

Best explanation 🫡

[@amchourasia]

Commenting for better reach of the video

[@tirthankarchakraborty1247]

is handson required for placements??

[@jayminpatil6168]

OP

[@JamesHalpert8555]

Doubts: 1. Init hi bss eklauta parent process hota hai OS me?? Kiuki baaki sab process hi kisi na kisi parent kah child hai 2. Agar parent process me wait() nhi rehene ke karan bahut zombie process table me reh gya...toh uss time kya system crash ho jayega? Usko ultimately kaun handle krega??

[@sde77]

Ans: 1. yes init is the only parent process in the system, rest all are the child process of this zeroth process. 2. System crash is bit extreme word, infact if there are too many of zombie process, the process table which is finite in number, at some point of time will become full, hence making it unable for OS to run other processess. I feel, u by now, might have come up with a solution to these questions, but still for the reference of future readers, i wished to highlight this.

[@anmoldua9755]

& will create a new process... In the orphan example, it's cleared with ppid 1 But in zombie example, the ppid is not 1 for the new process created using &. Can you explain... Why is that....????

[@lakshaykumar7518]

Please revise the video, you will find the parent of "sleep 1& " has not exited.

[@anmoldua9755]

@sufyaan khateeb yes I understood this part... But as lakshay sir told that there will be a resource leak if the parent exits first...? But if the parent exits in the above zombie process code.. Then all 100 (sleep 1 &) parent will be init..all the process will give the exit status to init and entries will be removed from the process table.. So how come there will be increase in process table(why would the process entries will not be deleted) .. It will be cleared like before..

[@anmoldua9755]

@@lakshaykumar7518 thanku .. I got this part.. I have one more query.. Kindly help to reply.. I added just below it. Thanks in advance.

[@prashantsaini2290]

Why parent process (waiting for child's status) did not immediately read the status of child ?? And letting the creation of zombie process ?

[@nishchaygupta9988]

Hey. I'm unable to run the commands Lakshay bhaiya is writing the in the terminal. Anybody please help me. I'm unable to proceed after the writing the cd desktop command.

[@ramsujanrajak6883]

bhaiya ye command CMD me ni chal rahi he

[@anuragbhattacharya2720]

CPU can handelmaximum 2^22 processes.