Performance tuning bugs emerge in endlessly? These three documents can easily handle JVM tuning

Premise

There are still many people waiting to see the opportunity to change jobs , Because no one can easily say the word "resignation" when they can't find the next company . And once it's time to go for an interview , And self doubt ：

• For example, I feel that my education is not high enough ;
• There is no record of a big factory ;
• The companies that stayed before used some old technology stacks ......

Can this interview really go smoothly ？

Tell the truth , These are some external interference factors , On job seekers , The most important thing is to see the level of work ability . such , Salary and other aspects can come naturally .

High frequency technology examination site

What are the technical points that can leave a deep impression on the interviewer when screening resumes and interviewing ？

I have to mention performance tuning here , Almost every JAVA Back end developer , You will encounter performance tuning problems during the interview . Answer this question , To be right JVM、Mysql、Redis And so on to a new level of understanding . what's more , Once you have mastered the method of performance tuning , When performance tuning is needed , The methods and ideas for troubleshooting will also be clearer .

such as Page response is slow 、 High server load 、 Low concurrent number 、 Frequent database deadlocks etc. . Especially today's Internet development model is popular , The increasing number of system visits and the bloated project code , A variety of performance problems are pouring in .

How to solve ？

To solve these problems , We need to do a lot of practice and exploration , And if you just read some technical blogs and articles on the Internet , It takes too much time ," It's getting stronger , I'm bald, too ".

So are there any General optimization principles , Or baseline Well ？ These related issues about performance optimization , Here I share three very comprehensive and clear tuning notes , Namely JVM Performance tuning notes ,Redis Core notes ,MySQL Excellent performance and architecture design are illustrated in three notes , Clear and easy to understand ;

For reasons of length , In order not to affect reading, I show the contents and screenshots here , these Tuning notes You can get the free collection method at the end of the article ！

The first tuning note ：JVM Performance tuning notes

• One 、JVM Memory partition
• Two 、JVM Execution subsystem
• 3、 ... and 、 Garbage collector and memory allocation strategy
• Four 、 Efficient and elegant writing Java Program
• 5、 ... and 、 performance optimization
• JVM Guide to common interview questions

A second ：Redis Core notes

• One 、Redis Basic data structure and actual combat scenarios
• Two 、Redis Common exceptions and Solutions
• 3、 ... and 、 Common application scenarios in distributed environment
• Four 、Redis Cluster pattern
• 5、 ... and 、Redis A detailed explanation of common interview questions

The third part ：MySQL Excellent performance and architecture design

One , The basic chapter

• The first 1 Chapter MySQL Basic introduction
• The first 2 Chapter MySQL Architecture Composition
• The first 3 Chapter MySQL Introduction to storage engine
• The first 4 Chapter MySQL security management
• The first 5 Chapter MySQL Backup and recovery

Two , Performance optimization

• The first 6 Chapter two influences MySQLServer Performance related factors
• The first 7 Chapter MySQL Database locking mechanism
• The first 8 Chapter MySQL database Query The optimization of the
• The first 9 Chapter MySQL database Schema Design performance optimization
• The first 10 Chapter MySQLServer performance optimization
• The first 11 Chapter 2 common storage engine optimization

3、 ... and , Architecture design

• The first 12 Chapter MySQL Basic principles of extensible design
• The first 13 Chapter one: extensibility design MySQL Replication
• The first 14 Chapter 2 data segmentation of extensible design
• The first 15 Chapter one: extensibility design Cache And Search The use of
• The first 16 Chapter MySQLCluster
• The first 17 This paper introduces the idea and scheme of high availability design
• The first 18 Chapter high availability design MySQL monitor

For reasons of length , In order not to affect reading these tuning notes, I won't show them one by one , Please follow my private message reply after forwarding it to friends in need 【666】 You can get the information in two words. How to get it for free ！