Breaking down technical topics like micro-electronics is not for everyone, but you've done a great job of translating something complex like a CPU pipeline into a simple, easy-to-grasp and understanding. Just thank you!
@wizardcraftcode9 ай бұрын
Wow, thanks!
@eliasrezaei39317 ай бұрын
Best explanation ever! Never understood pipelining very well but your explanation made it so clear. Thanks!
@wizardcraftcode7 ай бұрын
WOOHOO!!!! Thank you so much!
@mtushar2 жыл бұрын
Thank you, I never could before but this high level overview has helped me understand how conditional branching introduces inefficiency!
@wizardcraftcode2 жыл бұрын
Woohoo! Victory is mine!!!!
@Sviskebisk Жыл бұрын
Thank you for this. Structured, precise and to the point. I gained +5 intelligence from just this video.
@wizardcraftcode Жыл бұрын
Thanks! That's a fun comment and I'm glad it helped!
@xedover2 жыл бұрын
Very nice explanation... I've been hearing about Pipelining CPUs, but until now I had no idea what they were talking about.
@wizardcraftcode2 жыл бұрын
Glad it was helpful! Thanks!
@subhajitchatterjee16376 ай бұрын
I love how easy to understand this video is. Subscriber++
@wizardcraftcode6 ай бұрын
Woohoo! Thanks!!!!
@JJJ-ee5dc2 жыл бұрын
Omg so much quality content. blessed to found out this channel
@boitshepojoy69252 жыл бұрын
Tell me abt it Quality information for free!
@wizardcraftcode2 жыл бұрын
Thank you, both! I love it when my videos are helpful!
@AlbertDongler7 ай бұрын
Superbly explained, thank you for taking the time to put this together! 😁
@wizardcraftcode7 ай бұрын
Thanks! I'm glad it is helpful!!!
@brian_kirk2 жыл бұрын
Thanks for making this! This was very helpful. You also have a great voice for narration and excellent pace! May have to check out all your other videos :)
@wizardcraftcode2 жыл бұрын
Please do!
@HenTrademark Жыл бұрын
I love her so much xxxxxx
@THERaikami13 жыл бұрын
Thanks so much for this video. I have an interview and I'm sure they will ask me about pipelining!
@wizardcraftcode2 жыл бұрын
Good luck!
@THERaikami12 жыл бұрын
@@wizardcraftcode Thanks I got the job!
@JJJ-ee5dc2 жыл бұрын
@@THERaikami1 good bro..
@wizardcraftcode2 жыл бұрын
@@THERaikami1 Woohoo!!!!
@dghtucs2 ай бұрын
Thank you for sharing knowledge selflessly!!!
@wizardcraftcode2 ай бұрын
It makes me really happy when people find them useful! Thank you!
@amsonyoutube2 жыл бұрын
Hey Merlin, you did fantastic job !!
@wizardcraftcode2 жыл бұрын
Thanks!!!
@berthor0m12 жыл бұрын
Thanks so much for this video! Very clear insight of cpu pipelining for the noob I am 😊
@wizardcraftcode2 жыл бұрын
Glad it was helpful! That makes me happy
@jpmorallo3 ай бұрын
This is helpful thank you
@wizardcraftcode3 ай бұрын
I'm so glad! Thank you!
@piecucci4 ай бұрын
what a gen! 💎 instant subscribe!
@wizardcraftcode4 ай бұрын
Woohoo!!!! Thanks!
@dougm2753 жыл бұрын
I'm learning scripting for now but I enjoyed this.
@wizardcraftcode3 жыл бұрын
Thanks!
@bowthunell Жыл бұрын
Thank you for this well explanation. It's very helpful.
@wizardcraftcode Жыл бұрын
Thanks! I'm glad it helped
@favourmokwenye6387 Жыл бұрын
super helpful! Really love how i understood it in no time
@wizardcraftcode Жыл бұрын
Yay! Thanks!
@Brekstahkid2 ай бұрын
Awesome
@wizardcraftcode2 ай бұрын
Thank you!!!!!
@sushmithaguggella17823 жыл бұрын
such beautiful explanation
@wizardcraftcode3 жыл бұрын
Thank you!!! That makes me very happy!
@pavanchytanya12832 жыл бұрын
Thank u mam you taught it so well , please suggest a book for processor architecture( computer architecture in general)
@wizardcraftcode2 жыл бұрын
I'm glad you liked it. For a book, I like Computer Organization and Design by Patterson and Hennessy. It's the standard textbook for lots of schools. Maybe other people can chime in with other suggestions!
@michaelcrainiciuc Жыл бұрын
Great explained and easy to understand!
@wizardcraftcode4 ай бұрын
Thanks!
@rambazamba41642 жыл бұрын
oooommmg fuck yes the little animation is so helpful and motivating for adhd its such a relief every time hahaha
@wizardcraftcode2 жыл бұрын
I'm glad you like it!
@azd17522 жыл бұрын
Great job ! Thank you for the clear explanation, it is very helpful !
@wizardcraftcode2 жыл бұрын
Woohoo! Thanks!!!
@HenTrademark Жыл бұрын
Love your vids xx♥️♥️♥️♥️♥️
@carolwellington483 Жыл бұрын
Thank you!!!
@wizardcraftcode4 ай бұрын
Apparently, I replied from the wrong account! Thanks from this one, too!
@nourghazal2962 жыл бұрын
And what if I have 2 pipelines. Will the speed of the CPU double?
@wizardcraftcode2 жыл бұрын
That would essentially be a two core CPU. If your compiler distributes things across those cores well, yes, the speed will double.
@nurlanimanov9503 Жыл бұрын
Thanks for nice video and explanation. my question is "How many stages can CPU maximum does in one cycle, I mean what is the limit? I don' think that it is unlimited right?"
@wizardcraftcode Жыл бұрын
The stages of a pipeline run in parallel meaning they all execute every cycle. In theory, you could build an N stage pipeline for any N, but, in reality, there's a limit to how many are useful.
@lanternarasu60612 жыл бұрын
Yo thanks , i have a very silly doubt here we saw 4 stage instructions and the first stage is fetch cycle , right? Correct me if i am wrong... In the fetch cycle the address of the instruction fetched is given to the address reg. And now the contents of the address reg is passed on the bus, then the instruction is fetched from memory right? Is the whole thing happens only at the first stage? For more clear view i will write like this Add reg.
@wizardcraftcode2 жыл бұрын
The stages of the pipeline all have to take the same amount of time, so they all have to be as long as the store stage. So, there's time for the fetch of an instruction in the fetch stage. The adding to the PC is done in a separate path, in parallel. That's what the Addr in that phase is doing while the fetch from memory of the instruction is happening. So, the things you wrote happen, but not sequentially. I hope that helps!
@lanternarasu60612 жыл бұрын
@@wizardcraftcode thanks for taking your time to respond me👍
@JJJ-ee5dc2 жыл бұрын
Thanks from india
@wizardcraftcode2 жыл бұрын
Thanks!
@semibiotic5 ай бұрын
ALU does not "execute" instruction, it only do the math commanded by CU. It is CU, which does execute the instruction.
@wizardcraftcode5 ай бұрын
You are correct. It executes the math necessary for the instruction. The rest of what I talked about is the high level view of the rest of what you are talking about. This video is intentionally high level, but I could have been more precise with my language at that point.
@suuuken49773 жыл бұрын
good work!
@wizardcraftcode3 жыл бұрын
Thanks!
@nipunmihimal90922 жыл бұрын
Thanks lot❤
@wizardcraftcode2 жыл бұрын
You're welcome 😊
@nourghazal2962 жыл бұрын
Thank you alot, lets say that we keep all the stages the same but we add an extra execution stage. Would it not affect the speed of the CPU at all?
@wizardcraftcode2 жыл бұрын
Just duplicating the existing execution stage doesn't help because you can't get two instructions there fast enough (without duplicating everything). However, all of the stages have to take the same amount of time for the pipeline to work. If you had a really long execution stage and split it into two, then the "tick" of your pipeline (how fast things go from one stage to the next) would be doubled. When your pipeline was completely full, you'd pump out finished instructions at twice the speed.
@mahseratokpas6313 жыл бұрын
It's a great explanation. Are you a professor?
@wizardcraftcode3 жыл бұрын
I'm glad you like it. Yes! I am a Software Engineering professor at Shippensburg University. Don't hold that against me! :)
@masbro19012 жыл бұрын
hi, what is stall and flush and branch penalty in this concept, and what is its impact to pipeline. thank you.
@wizardcraftcode2 жыл бұрын
I didn't cover stall in this video. Some pipelines are more complicated than the simple ones I talked about here and can recognize that two sequential instructions interfere with each other. Then they are smart enough to "stall" one until the data it needs is ready. Branch penalty is what I showed here - the cost of taking a conditional branch and how that empties the pipeline. That emptying of the pipeline is what "flush" means.
@fantasypvp2 жыл бұрын
now im wondering if cpu makers could improve the performance even more with parallelism on a singlethreaded application. so for example, if there are two paths of instructions being executed in a single code function, and some instructions didnt have much to do with others, maybe that instruction could be loaded into the cpu way before it is actually ready to be executed, and if the instruction after it doesnt rely on the result of that data, they could be processed in parallel by the same core. something like fn main() { let mut x = 0 let mut y = 0 for i in (0..1000).rev() { x *= 2 y *= 2 } } so for this code (rust), x and y are separate and dont depend on each other. would it be feasible to separate this into multiple threads purely using the cpu without any kind of explicit code to make it parallel?
@wizardcraftcode2 жыл бұрын
Actually, there are already optimizing compiler that will know to put those on different cores in your CPU. Essentially, the compiler can control the parallelism on the cores within a CPU without the programmer having to explicitly code the multi-threading.
@mikafoxx27177 ай бұрын
Even single cores have had multiple execution units and do batches, they also are smart about doing things in a new order so that things don't conflict, they also use unnamed registers to start new operations that other registers haven't yet been cleared for since it's out of order. Pipelining gets you to scalar, or one operation max per clock cycle, since the Pentium 3 or something, we've done out of order super-scalar processing
@wizardcraftcode3 ай бұрын
That's so cool! So much magic underlying everything we do!
@BlueNSour Жыл бұрын
for compiled languages, wouldnt the compilers optimise the conditions for the conditional branching?
@wizardcraftcode4 ай бұрын
The compiler will, and the CPU will. My goal with this video was just to give a high level view of what is happening and why you should understand it
@BlueNSour4 ай бұрын
@@wizardcraftcode valuable insight you're sharing. Would love to see how the CPU might be able to do this for itself? I hadn't realised that was an option
@wizardcraftcode4 ай бұрын
@@BlueNSour I'll put that on the list of topics I should make videos about. Thanks!
@sreerajchundayil5882 жыл бұрын
Overall explanation is good. But that robotic voice part is irritating.
@wizardcraftcode2 жыл бұрын
I'll have to work on being a bit more animated. Thanks for the feedback!
@mtushar2 жыл бұрын
@@wizardcraftcode don't believe that, I love the animated part!