This course will provide you with the basic knowledge to perform performance testing and improve the APIs of your own backend applications.
API Performance Testing
CS knowledge required for performance testing
When I think about what's changed most about my work before and after I started developing, it's the way I measure and improve the performance of the applications I've created. When I developed applications on my own, performance wasn't usually an issue because there were only a few users or I was the only one using them. However, in the real world, we deal with a lot of data and generate a lot of traffic, so performance testing became essential.
Even if the functionality is functional, an application with poor performance can ultimately become a point of failure for the entire system and create a poor user experience. After all, no one wants to use a service that takes tens of seconds to load a single list.
This lecture covers how to performance test backend applications to prevent these issues. We'll begin with a background in performance testing, conduct actual performance tests using a performance testing tool called Artillery, and demonstrate a simple performance improvement experience.
In fact, improving performance after performance testing is never simple. It may require streamlining application logic, tuning database queries, or even revising the system design itself. However, all these improvements begin with measuring performance. In this lecture, I hope you'll learn how to measure the performance of your backend applications and then gradually develop ways to improve them. I'll also be developing a future lecture on performance improvement.
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Who is this course right for?
People who have created backend applications but have never performed performance tests
I've heard that performance testing is needed before service launch, but I don't know where to start.
Need to know before starting?
Experience in building backend applications
Basic knowledge of Java (not required)
5,792
Learners
271
Reviews
116
Answers
4.9
Rating
9
Courses
안녕하세요.
멘토링을 하면서 주니어 개발자들이 어려워 하는 개념들에 대해 어떻게 하면 쉽게 전달할 수 있을지에 대해서 많은 고민을 하고 있는 푸(Foo)라고 합니다.
잘 부탁 드리겠습니다.
이력
2019. 08 ~ 현재 : 카카오 자바 백엔드 개발자
2021. 08 ~ 현재 : programmers 백엔드 데브코스 멘토
2021. 12 ~ 현재 : F-Lab 자바 백엔드 멘토
책
이것이 취업을 위한 백엔드 개발이다 with 자바(링크)
기타 이력 및 타 플랫폼 강의들은 아래 GitHub 링크에서 확인할 수 있습니다.
GitHub - https://github.com/lleellee0
All
19 lectures ∙ (2hr 53min)
All
51 reviews
4.9
51 reviews
Reviews 7
∙
Average Rating 5.0
5
This lecture is a ray of light for those who want to experience large-scale traffic but cannot. What on earth is the experience of handling large-scale traffic that is considered important in service companies? Or, you can experience it if you go to a service company, but you need to know it to go to a service company. I think this lecture is suitable for those who think, "What should a newbie like me do?" I think it is better because the lecture is set up so that you can see some functions that are not provided if you follow the current Artillery document. A few days ago, I remember an anecdote where a cell manager of a certain company was so well-versed in legacy that he gathered his team members and said, "Now, press F5 to refresh!" and said, "Let's do a traffic test!" I recommend this lecture because I think it can encompass even experienced people who do not have the concept of stress testing.
Thank you, Chae Jong-hoon, for the detailed course review!! I think you appealed to who needs the course better than the course introduction page ㅎㅎ
Reviews 19
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Average Rating 5.0
5
During the technology review process prior to a new project, we were able to quickly perform performance tests without separately setting up nGrinder or JMeter. This saved us time building the test infrastructure.
Thank you, Paprikaman, for leaving a review. :) As you said, I think the strength of artillery is that it can be used to test performance in the simplest way.
Reviews 2
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Average Rating 5.0
5
I'm actually working on a personal project. As the instructor said at the beginning of the lecture, I created an API, but I had doubts about how well my API could perform. That's why this lecture was even more touching, and I think I was able to take my first step toward performance testing easily through this lecture! And I realized that it's more developer-like to say more specific things like 'latency' and 'throughput' instead of just using the vague word 'performance' on my resume! I also liked that I could quickly review my knowledge about the operating system, and I think it was even more stimulating because he gave me gentle advice(?) that hit me in the face every now and then. ㅎㅎ
Thank you, Maengsuhobbang, for your vivid class review. :) It seems like you have learned well the content I wanted to convey in the lecture! I hope you can apply it well to your personal projects~! I will come back with a better lecture. (_ _)
Reviews 609
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Average Rating 4.9
5
Thank you for the great lecture! However, the sound seems to be very low. That's a bit inconvenient - would it be possible to adjust the sound much louder??
Thank you for leaving a review, Jang Jaehoon~ I will increase the volume and re-upload it by this weekend! Sorry for the inconvenience with your learning. (_ _)
Thank you so much! The class content seems really great!
Thank you. :) I've increased the video volume and re-uploaded it! Please check it out, and have a great holiday~!
Reviews 52
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Average Rating 5.0
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