Concurrency vs Parallelism | C# Interview Questions | Csharp Interview Questions and Answers
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- Опубліковано 5 лют 2025
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concurrency vs parallelism
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One of the best teachers I ever came across ! Thank you sir, you are amazing
Sirji you are from a different planet. Awesome master piece.
Kya kehna chahta hai bhai 😂
The best explanation of those concepts I have found on UA-cam! 10/10!
Great job, I searched more than 20 videos for sure , to get a confident view on this.. you did it . Great job!!! Thank you!
Using your definition at around 17:15, threads are contained in the same process as the main thread, and therefore are run on the same core. I think the overall explanation was good but in order for multiple tasks to occur on different cores, you need separate processes, not threads. Threads are also context switching, but the specifics of when to join the threads, etc. is done manually whereas async/await is done for you by the language.
I have a doubt that even if multiple threads are running on a same core through thread interleaving then it will concurrent programming and not parallel programming right?
So is multi-threading not always parallel programming?
@@rahulk2573 yes, multi-threading is not always done in parallel. I believe if you have a multicore CPU, most OS' schedulers are able to correctly dispatch different threads to different cores. For CPUs with 1 core, they are still able to perform tasks concurrently via thread interleaving like you correctly pointed out.
the explanation is so detail and easy to understand, thanks for your hardwork
Thanks for teaching like we're dummies. I can't express how much I appreciate your teaching style.
Explained very well now I must say I am theoretically clear on concurrency and parallism
Great One, helped me building parallel core app in unity.
what an amazing video! great work and very glad to be able to understand these concepts as I have always somewhat struggled with these
One of the best tutorial i have ever found thank you so much hope you will upload more updates video about c#.
Need to quantify the two tasks. How much time for T1 and T2? For example, T1=5; T2=10. Think of multiple sentences to a prisoner. In (A) "Consecutive" (not shown here) 5, then 10 = 15. (B) Concurrency to a prisoner means both at same time. But here, both T1 and T2 must finish in same total time (5 + 10) (not good for prisoner), but maybe one or two at a time. In (C) Parallel means maximum time of all tasks is required (10). The difference is how attention is given to each task. In A and C, full attention to each, but in C it's to both. In B attention is toggled so both tasks "feel" they're getting full attention (@2:23), important for user.
Excellent tutorial with fundamental points clearly and concisely explained.
Thank you so much!
Last picture was just awesome and make really sense :)
This is the best lecture on these topics 👍
Valeu!
@Edipo G Thank you for your contribution; it will encourage us to create more useful content.
Happy learning....!
Really Impressive... Thank you for making me clear about these concepts.
I am a big fan of you sir. What a knowledge you have sir. Thanks a lot for such tutorials.
Last images summarizes the whole lecture :)
This has cleared up a lot of confusion for me.
I am big fan of your teaching 💕
To the point with lucid explanation ... hats off sir ji
I love those explanations. Thanks for your hard work!
Very well explained. Thank You Shiv
Thank You :)
Great job. Very clear.
Nice Explanation
At 11:44 if instead of placing debugger on LINE17 place it at LINE13
and debug through code and observe the threads, see multiple threads as in case of parallelism.
It appears async await use multiple threading in background but if its using multiple threads then
why they need context switching?
Thank you! Very well explained!
Very helpful and easily explained, thanks again
Your are really producing good content sir
I have never found anyone who can explain better then Shiv Prasad Koirala Sir
Wonderful explanation. Just a small correction: Instead of determistic, it should be deterministic. Other than that, excellent content.
Beautiful explanation!!
Good explanation. I think at 14:50 the word is "undeterministic".
Thank you for this wonderful Tutorial.
You are the real MVP.
Superb explanation!
Very nicely explained :)
Super impressive. Excellent 🙏
Such a great explanation. Thank you sir.
Nice explanation Sir
You are a Gem. Thanks!
So I have question after looking into this video. Is Async & Await coming under concurrency? That's what I understood after looking at the Threads in debug mode.
You are the Real Rocks Sir 🙏🙏🙏
Nicely explained!
Very nice explaination ur video better than udmey videos
Hi, when you said that threads were not created, because you didn't want to run parallely, but threads can run concurrently as well, right?
great video !!
was really clear and concise....thanks
Since one core can have multiple threads, is performing different tasks on different threads of the same core parallelism?
So as a consequence at the end of the computation, running our processes in series or concurrently is in terms of total time speed equivalent ? This is just a matter of perception.
Respect respect and respect ❤❤❤
Thank You :)
I want to understand here that you created 2 worker threads: NewMethod() and NewMethod1() and there is one main thread means total 3 but here in the debug there are 3 worker threads and one main thread means total 4 threads so why there is one extra worker thread created for?
really good
Hi, As mentioned if async and await doesn't use threads then i have a doubt, I have created 2 async methods which are having some 20secs of code (as an example task.delay(20seconds)) and i have called them one after the other. If async concept doesn't use threads and if it only uses context switch then i think in order to run my code and show me the result it shoud take 40seconds ideally. But when i tried, it is taking only 20sec and gives me correct and expected output. Could you please clarify the doubt and do correct me if i am missing anything. Thanks in advance.
you are right async and await are not just context switching, It is about multi theading as well. if you want to know more detail about this o'really media has very good on async and await.
I hope I am not late. It's case of multithreading. He mentions in video about context swapping that only happens if no more multithread is available. For example, I have 2 core CPU and it has multithreading enabled. That means, I have generally speaking 4 core. So, when u use async, it is as it is working in different thread hence u see 20 sec. But suppose, I have 1 core CPU no multicore or multithreading. That's means all tasks has to perform in same thread. Hence, context swapping or time slicing. In this case, there is no benefit of using async other than responsive.
@@AB-cn5hb In simpler words, threads basically does work on the same 'Worker thread' but if we use 2 tasks then it will use two different 'worker thread'. Correct me if I'm wrong.
superbbb!!!!!!!!
very good explanation tho !!!
Good video! One quick tip: 'deterministic' is correct spelling and not 'determistic'.
thanks. very useful
Thank you for the video, really nice work.
Great!! thanks for sharing
great work mate, thank you!
Thank you so much..... Thanks alot for sharing such a wonderful stuff
Nice
Shiv sir - Can I use concurrency and parallelism both at once as I need performance as well as usage both at a time🤔
If u use parallelism u have the non blocking aspect included so.
Now i understood after so many articles and videos.
Why does it show no threads running for me? 11:05
Beautiful!!!!!!
You just cracked something i was worried about for many days..when are u going to release the second part?
Its here ua-cam.com/video/G3tz9rxts8E/v-deo.html
Tx sir
IT developers. This is such a interesting name.
Nailed it!!!
Async have .configuration(false or true) in their calling level . That is helpful for performance ?
sirji please make a video on Dependency inject in c#
do not know, how many times i have watched
👍👍
omg i can finally found an indian acent that i could understand
the threads do not appear in my thread panel, does any one know why?
Imagine juggling with computers!!
as to his accent, of course it's indian
not working
It looks like you are confusing concurency with asynchronism
Do put more explanation.
Excellent explanation. Thank you 🙏.
Nice explanation!