Recently, a small number of students have found jobs , But most of them are outsourcing or small and medium-sized enterprises , One of the students responded to me :2020 year JAVA Talent needs to be saturated ,
Many enterprises stop recruiting Java personnel ........
And what I want to say is : Java Millions of people enter the industry every year , The competition is really big , But at present, China 90% The work of the above programmers is assembly line CRUD, From a professional point of view, there is no technical content ,
2020 Qualified IT There is no shortage of enterprises CRUD programmer , So only outsourcing companies want you ... Do you feel a faint sadness .
in my submission : stay Java In the technological ecosystem of , High concurrency architecture selection /JUC And contract / Idempotency / performance tuning / Concurrent threads / architecture design /OS
Kernel And so on , These are the necessary interview for Internet companies , Necessary for project development , therefore , To help those students who can't find their homes , I decided to share with you some in-depth techniques for performance tuning .
What is performance tuning ?(what)
Before we talk about performance tuning, let's talk about it , Computer architecture .
In short, it includes three pieces ： Hardware , operating system , application program . actually , Performance tuning is about tuning these things , Including hardware , operating system , application program . among , These three aspects also contain some contents .
So what is performance tuning ?
Performance tuning is about computer hardware , Have a good understanding of the operating system and application , Adjust the relationship between the three , Realize the whole system （ Including hardware , operating system , application ） Maximize the performance of , And can continue to meet the existing business needs . This is what we call performance tuning , My guest, do you understand ?
Why performance tuning is needed ?(why)
Let's talk about why performance tuning is needed , In fact, there are two reasons ：
* One is to get better system performance （ That is, your current system is running well , But it works better if you optimize it ）.
* The second is to meet the increasing business needs through performance tuning .
Better understanding why performance tuning is needed ? We can talk about it from three aspects ：
· Hardware selection （ Select the server according to the server application type ）
· Operating system release （ Select release ）
· application program （Nginx,MySQL etc. ）
Today we will focus on the next MySQL Performance tuning and its architecture design !
Dear guests , Due to the large size of the data file shared , The knowledge content is relatively comprehensive , Limited space , It can only be shown in the form of screenshots , However, Xiaobian declared that all materials and documents are free to share with you . It only takes three companies
Private message keywords 【777】 Or check below for free . Attached at the end of the paper MySQL Performance optimized 21 individual [ Best practices 】.
The foundation of the prophet （ Believe in partial learning java We all know ）
MySQL Do you know the storage engine ：
MySQL Do you understand the safety management ：
MySQL Backup and recovery of ：
performance optimization （ Here's the point ）
influence MySQLServer Performance related factors ：
MySQL Database locking mechanism ：
MySQL database Query Optimization of ：
MySQL database Schema Performance optimization of design ：
MySQLServer Performance optimization of ：
Common storage engine optimization ：
architecture design ：
Ideas and solutions of high availability design ：
More catalog screenshots ：
Or that sentence ： All materials and documents are free to share with you . It only takes three companies Private message keywords 【777】 Or scan the bottom to get it for free . And the following common interview questions and MySQL Performance optimized 21
Best practices （ Pack and go with one button ）
Attached MySQL Mind learning map and MySQL Common interview questions ( With answers )：
MySQL Performance optimized 21 individual 【 optimum 】 Practice screenshot display ：
Technology