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Introduction to/Practical Load Testing for Large-Scale Traffic Processing

I've created the '대규모 트래픽 처리를 위한 부하테스트 입문/실전' lecture, easily understandable even for non-majors and immediately applicable in practice!

(4.9) 75 reviews

852 learners

  • jscode
대용량트래픽
k6
infrastructure
performance-tuning
performance-test

Reviews from Early Learners

What you will gain after the course

  • Measuring a specific service's traffic capacity

  • System Design and Expansion Methods Due to Traffic Increase

  • How to improve performance based on load test results

  • Large-scale traffic processing method

  • Load Testing Method


🤬 Damn it, I can't do this anymore!

I'm Park Jaesung, who started development as a non-major and worked as CTO at various companies, and am currently active as an educator. I also started development as a non-major and had times when I struggled to gain experience in handling large-scale traffic.

I wanted to gain experience handling large-scale traffic, but I was at a loss as to how I could actually experience large-scale traffic. This was because there aren't many companies that generate large-scale traffic, and even if you join a sizable company, most of the time you're not given the opportunity to experience large-scale traffic handling.

So how exactly can we gain experience in handling high-volume traffic?

By utilizing load testing directly, you can indirectly experience large-scale traffic even without joining a company that handles massive traffic volumes. Through experiencing high-volume traffic, you'll be able to practice how to respond to such situations, how to design systems, and how to optimize services.

I created this course with the hope that anyone can gain 'large-scale traffic handling experience'. Through this course, I hope you become a developer who can handle large-scale traffic on your own.

✨ 4 Key Points I Focused on While Creating the Course

This is not simply a course that teaches you how to use load testing tools. We will teach you the 'thought process' step by step, such as how to interpret results through load testing in actual work environments and how to improve the performance of the entire system.

The course is structured so that even non-majors can easily gain experience in handling large-scale traffic. After taking this course, you'll be able to measure how much traffic your service can handle and determine what approaches to take for performance improvements.

I thought that if you can't apply what you've learned in real situations even after completing the entire course, then it's a poorly designed course. I tried to structure it as a practical, hands-on course that can be immediately applied to real work, rather than an academic approach that only focuses on in-depth theoretical learning.

I'll show you step by step how to conduct load testing using real-world examples. By showing you this process, you'll also learn how to design systems that can handle large-scale traffic.

👍 These people would benefit from taking this course!

Someone who is having difficulty gaining experience in handling large-scale traffic
by watching YouTube or blogs

Non-CS majors who
have difficulty understanding
complex concepts and terminology

Those who want to improve performance through load testing
in real-world work environments

🙊 What happens after you finish listening to this entire lecture?

You will be able to experience large-scale traffic. Furthermore, you will learn how to improve system performance to withstand large-scale traffic based on load testing.

🍡 Tasting

'Bottleneck Point' Class

'[Hands-on] How many requests per second can my backend server handle?' class

'[Hands-on] Diagnosing Bottlenecks Through Load Testing' lesson

Reference Notes

The class proceeds under the assumption that you have basic knowledge of AWS. Therefore, we recommend taking this course after you have learned basic AWS. If you encounter any parts that are difficult to understand while studying, please feel free to ask questions immediately using the Q&A board or 1:1 open chat room😊

🚨 Make sure to check what kind of person is providing the education!

If you meet the wrong doctor, you might face death because your illness can't be cured at that moment. However, death ends with the pain of that moment. But if you meet the wrong teacher and receive poor education, you will suffer throughout your entire life.

Wrong education can lead you to an unwanted company, receive a smaller salary than expected, and potentially suffer for the rest of your life. Not only that, but the wrong education you received can also be passed down to your children as inherited miseducation.

Education can truly change a person's life in a positive way, but on the other hand, I think it can also completely ruin a person's life. That's why I believe education carries such heavy responsibility.

Therefore, please check who is providing the education, what kind of person they are, and what path they have walked, and make a careful judgment.

👋 Hello!
I'm finally introducing myself now ( ⸝⸝•ᴗ•⸝⸝ )੭⁾⁾

Hello!

[[STRONG_1]][[U_2]]비전공자 출신[[/U_2]][[/STRONG_1]]으로 개발 공부를 시작했습니다. 어느 새 벌써 6년차 개발자가 되었네요! [[STRONG_3]][[U_4]]최근에는 2개의 회사에서 CTO를 역임하면서 개발자로 활동[[/U_4]][[/STRONG_3]]했었어요. 시간 여유가 될 때마다 코딩 강의, 회사 개발 컨설팅, 강연 등을 해왔습니다.

The number of students I've taught has now exceeded 24,000 (as of July 2025)! Every time I teach my various students, I always feel the same way - I can't forget the sense of fulfillment from education, so I plan to continue providing education consistently on Inflearn.
(* Among students, successful candidates for Kakao Pay, Yanolja, and Woowa Brothers have been produced)

Just as I received a lot of help during difficult and challenging times, I wanted to become someone who could help many other people as well. And I felt most proud and happy when the value I created through development had a positive impact on others.

For these reasons, I hope that by giving and sharing what I have worked hard to achieve, those people can live a slightly better life.

Thank you!

🏆 Course Best Review

** This is a review written for the previously created .


🚌 Feeling overwhelmed about what order to take the courses?

'[2025] Essential Curriculum for Getting a Job as a Backend Developer (IT Service Companies)' for reference!



🐶Get course discounts with roadmaps

➡ Performance optimization for handling large-scale traffic (https://inf.run/ecBS1)

Recommended for
these people

Who is this course right for?

  • Backend developer aiming for an IT service company

  • Job seeker aiming for distinctive qualifications

  • Wanting to experience large-scale traffic in real projects

  • Those wanting to quickly learn load testing for practical use.

  • Those who simply find large traffic handling difficult

Hello
This is

28,665

Learners

1,912

Reviews

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Answers

4.9

Rating

16

Courses

 

[Sites]
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[Career]
現) JSCODE - 대표 멘토, CEO
前) (주)트라이포드랩 - CTO
前) (주)온리원유니버스 - CTO
前) 달리(DALY) - CTO
前) 팀메이트(Teammate) - CEO

 

[Books]

『Do it! JSCODE의 AWS 입문』, 이지스퍼블리싱 (2025.05)

 

[ETC]
- 기업 대상 개발 컨설팅 및 코딩 교육 활동

Curriculum

All

43 lectures ∙ (3hr 27min)

Course Materials:

Lecture resources
Published: 
Last updated: 

Reviews

All

75 reviews

4.9

75 reviews

  • 송사무엘님의 프로필 이미지
    송사무엘

    Reviews 11

    Average Rating 5.0

    5

    31% enrolled

    • JSCODE 박재성
      Instructor

      송사무엘님 좋은 평 남겨주셔서 감사합니다 :) 남은 강의까지 화이팅!!

  • 김상형님의 프로필 이미지
    김상형

    Reviews 26

    Average Rating 5.0

    5

    93% enrolled

    큰 그림과 대략적 흐름을 알 수 있어서 좋았습니다

    • 강의 완강 하시느라 고생 많으셨어요 상형님~~!! 큰 그림과 대략 흐름을 파악하셨다면 디테일한 내용을 공부 하시더라도 금방 습득 하실 수 있을 거예요! 제가 알려 드린 내용에서 조금씩 살을 붙여가면서 학습해보세요~~~~!!

  • 최민수님의 프로필 이미지
    최민수

    Reviews 2

    Average Rating 5.0

    Edited

    5

    95% enrolled

    저에게 꼭 필요한 강의였는데 짧은 시간 동안 많은 부분을 공부할 수 있어 좋았습니다! 최고의 강의였어요😁.

    • 감사합니다 민수님! 최고의 강의였다니 저도 너무 뿌듯하네요~!! 배운 내용 기반으로 실전에서도 잘 활용해보시기 바랍니다😊😊

  • wisehero님의 프로필 이미지
    wisehero

    Reviews 55

    Average Rating 4.7

    5

    100% enrolled

    좋은 인사이트를 얻고갑니다.

    • 감사합니다 wisehero님! 얻어가신 인사이트를 잘 활용해서 실제 프로젝트나 현업에서 꼭 써먹어 보시기 바랍니다:)

  • 박성환님의 프로필 이미지
    박성환

    Reviews 4

    Average Rating 5.0

    5

    100% enrolled

    부하 테스트에 대한 지식이 없었던 왕초보자인 제가 들어도 이해가 잘 되는 강의였습니다!! 재성님의 다른 강의들 또한 기대하고 들어보러 가보겠습니다 ㅎㅎ

    • 성환님~ 처음이라 많이 낯설으셨을텐데 이해가 잘 되셨다니 너무 다행스럽습니다! 기초를 단단히 다지셨으니 다음 스텝으로 가는 게 좀더 수월하시리라 믿습니다 👍🏻 다른 강의들도 기대에 부응할 수 있도록 하겠습니다 감사합니다 😊

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