Concurrency Vs Parallelism!

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Concurrency Vs Parallelism!

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Күн бұрын

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Пікірлер: 63

@dejanualex Ай бұрын

"Concurrency is about dealing with lots of things at once. Parallelism is about doing lots of things at once." R. Pike

@Rishi_Khandelwal 3 күн бұрын

What do you mean by dealing and doing? Please clarify.

@dejanualex 3 күн бұрын

@@Rishi_Khandelwal Although concurrency and parallelism are related concepts in terms of concurrent programming and can be used together, they aren't the same thing. Concurrency = multiple tasks that start/run/complete in overlapping time periods and in no specific order. vs. Parallelism = multiple tasks that run at the same time.

@dawidkrol1 Ай бұрын

Thank you for explaining concurrency and parallelism in understable way.

@gus473 Ай бұрын

Appears you're on a path to have 1,000,000 subscribers by year-end! Hoping you make it! 🍻😎✌️

@vijayas8007 Ай бұрын

Concurrency is abt managing and parallelism is abt executing

@wexwexexort Ай бұрын

wtf is abt

@dy0mber847 Ай бұрын

@@wexwexexortabout i guess

@wexwexexort 13 күн бұрын

@@dy0mber847 lol, that makes sense.

@janbodnar7815 24 күн бұрын

Great explanation. I would add a couple of remarks. You have to be aware that these terms may be used differently, people sometimes mixed them up. Or some use a different terminology. For instance, .NET uses the terms synchronous and asynchronous. I came across this definition of concurrency: concurrency means that two or more calculations happen within the same time frame. Meaning, several tasks run (with context switching) within a period of say 3 minutes. Managing multiple tasks simultaneously (within a time frame) is a good definition as well. IO-heavy and CPU-heavy is often referred to as IO-bound and CPU-bound. There is also the multitasking term, which is a more informal term that overlaps with both concurrent and parallel. Concurrency is an umbrella term for both concurrent and parallel execution. Parallel execution is a specific case of concurrency. But when they say the tasks runs concurrently, it means they run in interleaved, non-parallel way. This video is so good that I recommend to rewatch it any time a confusion arises.

@web9529 Ай бұрын

Clear and concise with good animations, great video!

@emmaccen Ай бұрын

paraconcurrent should be a word.

@je_suis_onur Ай бұрын

When talking about multi-cores or multi-cpus for doing parallel tasks the most important thing to watch out for would the cpu/core cache coherency. It would've been nice to touch on that too. Keep up the good work though! Cool video.

@tobiassjoholm9325 Ай бұрын

This is wrong? Concurrency on multiple CPU cores enables parallel execution. Concurrency on a single CPU core requires switching. Parallelism is a subset of concurrency.

@mohammedgoder Ай бұрын

Absolutely. Yeah, people try to redefine words that already have a definition. Concurrent literally means at the same time. I will never understand the followers that just go with it without thinking "is he correct?"

@Zmey5656 Ай бұрын

In the Go language, parallelism and concurrency are often confused

@rammehar5531 Ай бұрын

Thank you very much for all the knowledgeable videos. We respect your efforts. Please make a video on system design of online coding judge, how leetcode or hacker rank handles the online contest's load.

@TheIronMan9 Ай бұрын

Hello Sir, as and always Thanks for the great content. Please make a video on ACTOR SYSTEM.

@raj_kundalia 24 күн бұрын

Thank you for doing this!

@TheArmenianSolider65 Ай бұрын

I was asked to explain this concept recently in my system design interview at Disney for what was essentially implement Launch Darkly

@Obie. Ай бұрын

I see you didn’t get the job

@lukecho386 14 күн бұрын

So is it right when I say concurrency is better for multiple network call, like reading from a database, using concurrency, and based on each of the results returned, i can handle simultaneous computations using parallelism?

@emonymph6911 14 күн бұрын

How do you do parallelism while maintaining order? Is it possible?

@nanonkay5669 Ай бұрын

Using Go made me understand this better

@franciscoalbertomm7768 Ай бұрын

you are very good, thanks so much for all

@s8x. 22 күн бұрын

parallelism is a type of concurrency

@geetalohiya8692 28 күн бұрын

sir please make video on topin web application on protocal because I didn't learn on any kind of video so plz thinking to make it

@tonym5857 Ай бұрын

Youe content awesome 👏👏👏👏

@LuisAntolin Ай бұрын

Just brilliant!

@vnit4security Ай бұрын

Nice Tut. Thanks 🍓🍓🍓

@Testmail-lu8tl Ай бұрын

Concurrency to enable parallelism...nice idea to ponder

@hirenpatel6118 Ай бұрын

then there is also cooperative and preemptive

@Tony-dp1rl Ай бұрын

It's kinda a blurry line now though, for most development, your software is running virtualized anyway. .

@psycho.2u Ай бұрын

All we can do with a programming language ( such as C#, Java, python ) is to write a concurrent program. And when we run them on a machine, it may run parallelly or not. This is decided by the OS which decides it based on the hardware availability In these languages, we don't have much control to forcefully run tasks in truly parallel manner. These programming languages abstract away those details Is the above understanding right?

@RoyoItakoride 26 күн бұрын

I am thinking the same way too. I encourage you to read Grokking concurrency By Kirill Bobrov for deeper explanation regarding this topic :D

@janbodnar7815 24 күн бұрын

Yes, to my understanding, this is the case. If you let's say call Parallel.ForEach in C#, you give a hint to the OS that you would like to run it in parallel, if possible.

@rajdippal51 Ай бұрын

Multitasking vs Multiprocessing

@fandymohammad952 20 күн бұрын

Parallelism is subset of concurrency

@nc8051 Ай бұрын

Nice

@DK-ox7ze Ай бұрын

Isn't this a repeat?

@oealias5584 Ай бұрын

in the 2nd 'concurrent, not parallel', if task A and task B are running in sequence (one after the other) they can't finish at the same time. am i missing something?

@Thomas-cr2pt Ай бұрын

your statement is correct. but you should see it more like this. a has 10 jobs, b has 10 jobs. If you do those alternate you end up done at roughly the same time (for a and b). Thats why the chef making 3 dishes is a good example.