Recently, a small number of students have found jobs, but most of them work in outsourcing or small and medium-sized enterprises. Some students told me that JAVA talents need to be saturated in 2020, and many enterprises stop recruiting JAVA talents…….. What I want to say is: There are millions of people entering Java every year, so the competition is really big. But at present, more than 90% of the domestic programmers are working on assembly line CRUD, which has no technical content from a professional point of view. In 2020, qualified IT enterprises are not short of CRUD programmers, so only outsourcing companies want you… Do you feel a touch of sadness. I think: In the Java technology ecosystem, high concurrency architecture selection /JUC and packet dispatch/idempotency/performance tuning/concurrent threads/architecture design /OS Kernel and other skills, these are essential for the Interview of Internet companies, project development, therefore, In order to help those students who are having trouble finding homes, I decided to share in-depth techniques for performance tuning.

What is performance tuning? (what)

Before we talk about performance tuning, let’s talk about the architecture of the computer.

Simply put, it consists of three parts: hardware, operating system, and application programs. Performance tuning is all about tuning these things, including hardware, operating systems, and applications. Among them, these three aspects contain a number of content.

So what exactly is performance tuning?

Performance tuning is to have an in-depth understanding of computer hardware, operating systems, and applications, and adjust the relationship among the three to maximize the performance of the entire system (including hardware, operating systems, and applications) and continuously meet existing service requirements. This is what we call performance tuning, guest officer, do you understand?

Why do you need performance tuning? (why)

Here’s why performance tuning is necessary, but it comes down to two reasons:

  • One is for better system performance (that is, your current system works fine, but you can optimize it to work better).
  • The second is to meet increasing business requirements through performance tuning.

Better understand why performance tuning is necessary? We can say it from three aspects:

· Hardware selection (choose servers according to server application type)

· Operating system distribution (select distribution)

· Applications (Nginx, MySQL, etc.)

Today we will focus on MySQL performance tuning and its architecture design.

Dear guest officers, due to the large information file shared, knowledge content is relatively comprehensive, space is limited, can only be shown in the form of screenshots, but xiaobian declaration that all information documents are free to share with you. Just pay attention to the public number below after three consecutive can be free. At the end of this article are 21 best practices for MySQL performance optimization.

 

Prophetic foundation (believe that part of the learning Java are understood)

 

MySQL storage engine

 

MySQL security management

 

MySQL > restore MySQL;

 

 

Performance tuning (emphasis on)

Related factors affecting MySQLServer performance:

 

MySQL database lock mechanism

 

MySQL > alter database Query;

 

MySQL database Schema Design performance optimization:

MySQLServer performance optimization:

 

Common storage engine optimization:

 

 

Architectural design:

 

High availability design ideas and solutions:

 

 

More directory screenshots:

 

 

 

Again, all the documentation is free to share. Just pay attention to the public number below after three consecutive can be free. And 21 best practices for MySQL performance optimization (one click to go)

 

 

MySQL mind learning map and MySQL often meet questions (including answers) :

 

 

 

MySQL performance optimization: 21 best Practices