System Design: Why is Kafka fast? 

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The absence of any background music makes this video great.

What an amazing tutorial: Just the necessities, no annoying background music, no annoying calls to "subscribe and like". If all youtube channels were like that, we could heal the world. Also, I checked your channel page and was shocked to find that this was only your 3rd video. Keep being awesome!

I 100% believe you should make a whole series on Kafka, your way of simplifying the subject is legendary.

These videos are amazingly simple and clear. The animations are spot on!! Too good xD I wish this channel never stops uploading new content

How can one keep things so deep and yet stunningly simple. Hats off!

Mentioned a lot in the comments, but I have to say as well: what a great explanation, straight to the point, no bs and gives enough info without overwhelming with details. Thank you!

Seriously, thanks a lot Alex for all the stuff you convey through your LinkedIn network and RU-vid videos. Just love the way you distil the topics and make them understand beautifully.

You guys are doing amazing work here. I love the aesthetics, pace, explanations, topics, and cadence of it all. Kudos!

No frills and thrills, just pure nuggets of value. Exactly what I needed. Thank you. You earned my sub.

Short, high quality, clean and extremely precise content...Many Thanks!

this guy is so sweet. man! i was struggling on this system design, all his books and posts are too easy to follow and helped me become more confident

I have used kafka before but never had to think about why it is actually fast. This was very informative. I like the format of the video as well

Man this is gold. Saying thank you does not feel enough. Please keep it up.

Lol, I heard you talk for about 10 seconds and subscribed. The tone of voice, the kind of explanation, the details, the video content, all of that quality conveyed in just a few seconds. Excellent content. Great stuff.

In 5 minutes I learned a lot! Amazing video! You are a good teacher! Thank you and I hope to see more videos from you!

So glad the algorithm found this channel for me, the content is so clear and digestible, thank you please keep up the fantastic work

Short, concise and concrete. Very easy to understand. Thanks a lot

Amazing! Love the quality and getting straight to the point. Not a second wasted.

You have a extremely clear and nice way to talk and explain! Please make more videos like that. Awesome work!

I love all the System-design Content posted by you! Thanks for sharing your knowledge! 🙏

excited to see Sahn on youtube! this is by far the best tech video I've watched. concise without losing any depth! looking forward to more videos like this. I've had the fortune to (indirectly) work with Sahn and review his code. one of the few top talents that any company is lucky to have. this video is as high quality as other production of his. 2 questions for Sahn: 1. there's a small disconnection between "sequential IO throughput vs random IO throughput" and "HDD vs SSD". is there any perf number difference on sequential IO throughput on HDD vs SSD? 2. is there any perf number difference(ops per sec or latency) for zero-copy vs traditional buffer copies?

Absolutely fantastic video - went over a lot of concepts like minimizing disk io, engineering constraints of kafka, different memory access patterns, with very good diagrams! Thank you :)

Very simple and efficient execution, talking about both the video and Kafka. Really good material mate, keep up the good work

Succinct. Precise. Educative. Excellent animation. Simply the best 💯

Really great presentation! I was scared when I saw Kafka but you explained it really well.

i wanted to comment that i appreciate the level of detail in the explanations in the video. looking forward to more useful content!

You made me realize the importance of expressing thought in a clear and concise way. Thank you

I love the format of these videos. Looking forward to more and to the newsletters too!

Amazing work guys! I'm subscribed to any newsletter and video you make, and it's worth it. Congratulations team 👏👏👏

Loved the animation and explanation. Keep enlightening us all!

concise and crisp clear... Thanks for making such amazing and valuable videos.

Short ,Crisp and To the point contents , Great work !!

5 minutes of high quality content, thanks!

Crisp yet complete info. Good content. Thank You.

Exactly my kind of content. Interesting, insightful and to the point.

Very simple and clear! Thank you!

A truly educational and concise video. Thank you.

Wow, this one is super cool. No background music, cool minimalistic diagrams, calm voice!

Thank you! Such a great delivery and explanation. Particularly, great choice of aspects to share.

This is not the same Kafka I was expecting, but happy to learn. thanks for sharing!

Great video, explain kafka design so clearly. Thanks very much

Awesome Explanation about Kafka is amazing...Thank you, Alex

So simple yet so powerful explanation, thanks

Great work! Easy to understand the concept. Thank you

Nice, I definitely learned something new about the Kafka internals today!

My head exploded with the DMA. I had not idea! Great learning! :)

Very deep insight! Looking forward to your next videos, please keep going

Amazing details about frequently used software. Lucky to bump into this page. Thanks

I really appreciate your work. Excellent video. Superbly Articulated. Easy to grab the concepts. Great work. 😍

Very clear explanation. Thank You!

This is an amazing video. Actually putting it out there - I LIKED AND SUBBED! Well deserved for great content 💯

Very simple with good animation to explain things clearly. Keep publishing these kinds of useful videos.

This is so amazing! Straight to the point!

We need so much more of this.

Greatest video series with fluenent + clear + intuiative illustration ( master-quality ##) , can not thanku enough!

Amazing content! Keep posting such videos, its a great help!!!

This was a clear and concise presentation. Thank you so much 👍

Thanks Alex for such a great video. You are amazing !! The way you explain the stuff is pretty awesome and simple. Thank you once again for such great work.

really this is high quality videos and lovely animations ... thanks a lot for simplifying why kafka is fast

Thank you for the wonderful explanation of Kafkas abilities.

those minimalistic graphics makes complicated topics easy to ingest. Subscribed!

content is simple and crisp... thank for bringing this to us...

Thanks for the useful instruction!

Short and Sweet! Excellent video.

wow. No BS, only content! Thank you!

First time I actually WANT to subscribe to a newsletter.

your video is very clear and on-point Sir, thanks a lot 👍👍

wow!! this channel is a goldmine for backend engineer

This is explained so well. I've love to hear you speak more about kafka. EDIT: 100% ådding that newsletter to my rss.

Amazing! Thank you for making this video, appreciate it esp diagram explaining zero copy principle

Thank u so much!!! I had this question in my mind and got explained by your in a very easy way!!!

USP of this channel is "No bla bla story...precise n to the point on topic "❤

Short & sweet. Thank you.

Really loved this. Thank you.

Such a good content in just 5 minutes!

Brilliantly explained!! 👏

Stunning. It's not abt any topic related to computer science or tech, if anyone teach me anything like this, i will skip everything and learn. Thank you for changing lives of people.

Amazing explanation. Thank you sir.

Very cool channel you keep the most important stuff compact, not everyone can do that.

Not have any doubt , will be trending in top RU-vid channel in system Design world wide, great start.

Thanks, brilliant tutorial. My company are currently gearing up to adopt a data mesh architecture and It's gonna be fun moving from batch to this CDC stream methodology.

Very beautifully explained 👌

Essential collection of videos in this channel for a software developer

Simple and very insightful, I like the lack of music and the use of motion graphics, helps me focus.

Bridging the dearth of senior developer content on youtube. I'm here for it.

Short and Sweet, and Deeeep.... Awesome explanation..!🔥

Short clear and concise

WOW, amazing stuff

Nice stuff, great content with simple words

Very insightful. The diagrams made me understand the concepts

Nice intro about Kafka, learned quickly, now you got a new subscriber 👍

Nice, that was really clear explanation, thanks a lot!

Very informative video, thank you so much!!

Very well explained. Thank you.

Thanks! Very insightful

Love this explanation!

The animation is amazing!

Wow. Never heard about Kafka, but after this brilliant video now I know why it is so fast. Still no idea what it is, though. And so many totally not astroturfed comments. Sweet.

Amazing video. This channel is so under rated. Thanks youtube algorithm to suggest me this channel.