Intro to Processes & Threads

An introduction that explains the basic concept of a process and a thread.

[@andriymit7401]

Clear, concise, illustrated, well explained and done in a nice English! Thank you so much Dave!

[@bro_chenzox]

Yes it is made for humans - Thank you for your leisurely and detailed style, Dave!

[@alonhillel-tuch6560]

What is a "not nice English"? To avoid misinterpretation of your comment, for me, it's folks using abbreviations when trying to explain to students (missing the point).

[@abstractapproach634]

@@alonhillel-tuch6560 if you want know what "not nice english" is your checking the right places. Normally the only thing more toxic than a KZbin comment section is the "professionals" on stack exchange! However these comments seem quite respectful, check out a linus comment section for some great examples.

[@ruixue6955]

0:39 a simple program 0:55 every step of a program corresponds to an instruction 1:04 each instuction corresponds to binary code 4:50 thread 5:28 think of this as a unit of execution 6:56 scheduler of operating system 8:11 time slice 11:09 proces 12:42 today's CPU 13:06 hyper threading 14:10 multi-core 14:38 multi-CPU (the best solution) 15:11 summary

[@davecrabbe4579]

Thanks for taking the time to document this..

[@andywei5518]

nice :)

[@CarlitoProductions]

This is what I needed. My teacher can't explain, and this has the been the clearest explanation I found on KZbin so far

[@joshfoster3959]

Great Lecture! I really wish my professors at my university would teach like this. Very clear, concise, and not too fast... really like the pace of your teaching style. Thanks!

[@nicoleanne967]

THANK YOU VERY MUCH FOR BEING SO DETAILED AND CONCISE!! PLEASE KEEP UP THE GOOD WORK! YOU'VE HELPED ME SO MUCH!!

[@Emir-xq7jt]

Finally someone "explained" rather than "re-read" from pre-made text. Thanks a lot!

[@shanegrayson7068]

Slowly explaining and with relevant example. This is perfect.

[@srikanth_y]

I've watched a lot of videos on this topic and none of them made sense to me except this one. Thank you.

[@_romeopeter]

This explanation was a bit broad and clear compared to the other videos I’ve seen. Exactly what I needed. Thanks

[@abbasramees4238]

I have been looking for this kind of explanation, and finally got it. everyone is explaining threads with jargon terms.

[@mariopichardo376]

This was excellent, thank you so much. Very concise and well explained.

[@vinhtruonghuynh7968]

A very informative lecture for a brief introduction about the basic concepts of processes and threads. Thank you a lot.

[@prathameshkaole8683]

Tom cruise giving a great explanation !

[@patc9191]

I wish I could give you multiple likes. Excellent, orderly, impacting lecture. Thank you.

[@whatdoyousay4236]

Concise and practical! Brilliant. Thank you!

[@daleashman434]

Thank you very much, subscribed to this hidden gem for teaching you basics of computer systems!

[@JC-cu2ym]

Thankyou so much for your explanation!!!! I was having a bit of a hard time connecting all of the new concepts I had just learnt but you made it so much easier and explained precisely in a short time. :D

[@B-Billy]

The best explanation over the whole internet!! Thank you

[@voltaralcala9021]

My teachers call me stupid because I question them and they can't answer. And try to shut students up they go like do the research yourself. I am glad after three days wasting with them and on research, I finally found your channel and finally got my answer with examples. Thank you, good sir, great explanation.

[@davecrabbe4579]

grin.. I'll bet they don't call you stupid..

[@konarkmodi3799]

Far best explaination with beautiful overview to internal relation of threads with the operating system. Schedular, time slice, round Robin, queue, locking.. Tysm.. For this video🤗😊

[@ravikumarprasad8772]

Very simple and elaborate explanation, Thank you Dave :)

[@laughingalien]

Brilliantly explained, Dave.

[@pnamgay1477]

Wonderful tutorial on Process and Thread. Thank you!

[@leegaines2391]

Thank you so much for sharing this. This filled some gaps in my knowledge.

[@youssefsabbagh4341]

It can't get any better than that !! Great explanation

[@aaronw6485]

Fantastic explanation, keep up the great content Dave!

[@repairspots]

Awesome video explanation. Thanks for sharing your knowledge

[@user-tw4kt8du9t]

This was incredibly clear!

[@StephenChapman]

Thanks for your effort with these videos, Dave! This one really helped me shore up some loose ends on the topic. Looking forward to more!

[@techbbas]

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[@StephenChapman]

Just FYI: Spamming comments like this will actually hurt your channel and ranking, so you should reconsider that as a strategy to grow your channel.

[@Victor-cg4hx]

It is an amazing video that helps me to clearly understand the relationship, thanks a lot !

[@hellosonymoto]

Nice content and great teaching skills. Thanks so much.

[@rajcodes100]

Thanks sir for explaining this concept in such a simple way.

[@mahmoudsalhab3007]

well explained, looking forward for more videos, Thank You :)

[@alonfriling301]

Great introduction to Threads and multiThreading

[@brunoloverius5777]

Hey Dave, thank you verry much! cheers from belgium! :)

[@johndocherty2349]

This helped tremendously. Thanks.

[@romannagel2414]

Excellent explanation!!!

[@rahulshekhary9420]

Best explanation in you tube on Processes & Threads..............super subscribed:)

[@kaoengine]

tks sir, your explanation more understandable than my professor

[@Creeping66]

Many many thanks for the explanation!

[@dannggg]

i finally understood it. tired of all these professors with slides that doesn't explain crap. Thank mr. crabbe!

[@zuzukouzina-original]

Really good and clearly explained. Thnx!

[@derekdj6790]

Phenomenal explanation

[@serinagrill3607]

Well-explained, thanks so much!

[@datafluids6654]

The example cited is not of multi threading but of multi processing. Word and Excel are two separate programs and therefore spawn separate processes each with their own process ID. It would be multi threading only if its the same program and they share the same memory address space.

[@davecrabbe4579]

Absolutely.. I am explaining a bunch of concepts here. First the idea of the scheduler controlling a thread's access to the CPU. So my first example between Word and Excel is multi-processing. But to the scheduler it is just arbitrating between 2 threads. At about 11:40, I show multi-threading in a Word application by describing one thread that handles keyboard input and one thread that handles printing. Both from the Word application. To the scheduler, it is just 2 threads. So there are multiple threads vying for the CPUs execution engine all the time. Sometimes the threads come from one application (called a multi-threaded app) and sometimes the threads come from different apps (or processes), and this is multi-processing (loosely referred to as multi-tasking).

[@datafluids6654]

@@davecrabbe4579 Ok great, I got it now. Thanks Dave for the video and the detailed reply, its really appreciated.

[@AvinashSingh-bk8kg]

Video Published on 1st May 2017. Me Watching it on 1st May 2019 A great Co-incidence and exposure to a fantastic tutorial. Thanks Mr. DAVE.

[@dinujaya6098]

1st May 2020

[@minirasamedova648]

Great explanation, thank you so much!!!

[@DanielSColao]

Great lecture! Well explained

[@sunnykumar4780]

thank you sir for explaining it so nicely...

[@thedhanjit]

brilliant explanation.....thank you ...so much ...

[@ashraffayad]

That was very useful. Thank you.

[@retardedead5124]

Awesome video.

[@praveenbs8146]

very helpful video , amazing

[@matheusmansourelbatti7716]

Thank you, Dave! I think you couldn´t possibly have explained it better. I was struggling with these concepts before but they are now clear. Subscribed!

[@SzTz100]

Nice job explaining this so clearly

[@pratim995]

Very well explained. Thanks

[@CartmanBrah]

Great video Dave, if only my lecturer was as articulate !

[@pujithag9485]

Amazing sir !!! Thanks a lot !

[@GerardoMares]

Great video!

[@orimahn3523]

WOW!!! Thank you so much for such a clear explanation!!!

[@techbbas]

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[@jonassteinberg3779]

a nice intro to threads from the cpu's perspective.

[@imedt4385]

clear rich contents well explained.

[@techbbas]

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[@vlad981]

Thanks! very useful!

[@pratikkhairnar8037]

thank u for such a knowledgeable lecture

[@giddy222]

thank you very much. The explanations are precise and simple

[@techbbas]

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[@brettvanderwerff3158]

This was really good

[@snehamayroy339]

Thanks a lot sir

[@estatedealzru]

Awesome) thank you very much

[@samyakjain9367]

Thanks a LOT sir.!

[@shindurireddy3469]

Very well explained... enjoyed learning!

[@techbbas]

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[@siva.1334]

very imformative.thanks.

[@genlucero2974]

Nice tutorial!

[@moazelsawaf2000]

Thanks sir ❤️

[@ccjx_space]

Thank you! 👏

[@shivanshutiwari8452]

Nice Explanation .. :)

[@muradheyderov]

Great, Thanks

[@thejkeenan21]

great tutorial

[@vijaydosth4339]

well explained.

[@Psychronisch]

much thanks!

[@lihaozhang6611]

Excellent Video, Really Help me a lot

[@techbbas]

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[@partha95123]

Very good video tutorial!! Thank you Sir :)

[@techbbas]

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[@lantern8613]

Thank you.

[@lycorice2219]

ah I wish you were my professor. You explain it sooo much better - I'd probably enjoy the class more if you were my prof instead T---T

[@xyz8869]

BEST EVER!!

[@user-ej3iw8lw3w]

When we talk about multithread programming, it means that the application process(es) can have several running threads. When we have multiple threads, the process can answer multiple concurrent requests. There is a catch in this programming paradigm though; the running application can only benefit if it is using more than one processor core, otherwise it will be as if it were a single process.

[@davecrabbe4579]

yes.. but for desktop OSes, they all can access multiple cores on today's CPUs.

[@jammin004]

very nice Sir

[@salahelwerfally8810]

amazing

[@user-nb6bo6hl6d]

Great!

[@ralphchen6514]

very nice

[@LuaneCarolineAquinoCavalcanti]

Thanks, It is a very clear explanation

[@techbbas]

if you need c++ easy coding then visit my channel. and also subscribe plz kzbin.info/door/1LJDu2koq9y146MUH8prAg

[@VP-es6wy]

Terrific

[@etbilu6265]

thanks for the explanation, Dave! greetings from Brazil.in 5:54 , i have a question:thread is a full sequence of the instructions of process or a small group the instructions of process (6a,2b,8f,3c in the example)?

[@davecrabbe4579]

a thread is the complete set of instructions that complete some sub-task for the process. For instance, when the user hits PRINT in a word processing program. A 'thread is spawned", meaning a set of instructions that contain all the code to do the printing function are generated and sent into the queue to be executed by the CPU.

[@etbilu6265]

Thank you, I couldn’t have done it without you

[@saranyailla8762]

Best!

[@avvoprime]

i am successfully drive my overthinking to this stuff😂

[@alexrosellverges8345]

Thank you very much, really good video! Now, I'd like to ask whether you could recommend me some book to learn a bit more in-depth all this knoledge you explain, maybe some books you liked would be great. Thanks again!

[@davecrabbe4579]

This field changes rapidly. We don't tend to use many texts at my College and so I am unsure what the current books on the topic might be.

[@alexrosellverges8345]

Dave Crabbe okay, thanks anyway!

[@andresao]

I think this is a great explanation of Process vs Threads, but it is just a bit confusing when talks indifferently about threads ex. and processes ex.

[@abstractapproach634]

My other post was a joke,but *I actually have a question* after watching your next video (where comments are turned off) *Does this mean I have no way to tell my 32 core 64 thread threadripper 3970x which core/thread to use?* I want control of my system, and I'm starting to feel like I'm going to need hardware modifications. *Is there a way* via prioritizing cleverly *to* truly *control what information goes to thread `a' on core `x'* ? or am I stuck outside, having to trust this "scheduler" to decide what part of my code can be done in parallel when and in the optimal way considering each cores silicone lottery and proximity. That's a lot of trust, AMD is supposedly all about open source. There must be a way to gain full control.

[@davecrabbe4579]

The scheduler chooses the highest priority thread.. The best you can do is to write your own software and set a thread priority to be very high. Even then, you likely have some limits.. as the scheduler will need to run OS maintenance threads before app threads.

[@abstractapproach634]

@@davecrabbe4579 that sucks, I'm determined to learn machine code then. Send it the voltages where they need to be to make what I want happen if need be. First for my system, them for others. I'n sure there will be patterns that emerge eventually. More of a daunting task then I realized, maybe even a lifes work.......

[@chaitanyajharbadem-1740]

One thing confuses me if OS is an program that means it is going to use cpu and we know our cpu can handle one process at a time so is that means excution of OS is halted when we use other applications

[@davecrabbe4579]

Yes.. that is true.. but the OS executes for 1ms, then your program for 1milli-second, then the OS, then the program so it *appears* as if both are working full time.

[@chaitanyajharbadem-1740]

@@davecrabbe4579 oh and correct me if I am wrong, when we close a window the excution of os restart right thanks man good video ❤

[@mohammedaminetrabzi3084]

👍

[@supplementaluniversity8094]

Need more of your knowledge on the interwebs!! Sal Kahn for computers.