The JVM collection that Alibaba's top architects have summarized for many years, where can't I check it!

Although there are a lot of JVM-related materials on the market, it is obviously difficult for everyone to systematically learn and understand. At the same time, JVM knowledge is now a compulsory subject for technical interviews of first-tier manufacturers.

With more than 10 years of experience in the big factory

Java senior technical expert

Comprehensive combing the knowledge and experience of the system chemistry JVM, from entry to magic, as well as

often

commonly seen in-depth analysis of interview questions and other advanced advanced methods and actual combat!It not only meets the needs of rapid and systematic learning and comprehensive knowledge, but also takes into account the interview experience guidance.Interested friends can click in to find out, click

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You can

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Let's take a look at the content of the notes:

• Introduction to JVM (
  JVM Introduction+JDK+JRE+Class
  div>
  )

• What should the JVM learn (
  parent delegation + heap + stack + class loading mechanism+Runtime data area+JVM memory model+GC garbage collection+garbage collection algorithm
  ）

• Work wellSharpen tools beforehand (
  JVM parameters+common commands+common tools+execution engine
  )

• Performance optimization (
  memory leak+memory overflow+new generation+old generation+G1 tuning+CMS+full gc
  )

Introduction to JVM

• What is Java?

• Programming Language

• A language that the computer [hardware] can understand

• OperationSystem

• What is JVM?

• JDK JREJVM

​

What should JVM learn in the end

• source code to class file

• Source code demo

• Class file

• Load(Load)

• Link

• Initialize)

• Classloader ClassLoader

• parent delegation

• class file to virtual machine(Off loading mechanism)

• Run-Time Data Areas

• Method Area

• Heap

• Java Virtual Machine Stacks

• The pc Register

• Native Method Stacks

• JVM memory model

• Heap memory overflow

• Method area memory overflow

• Virtual machine stack

• Garbage Collect (garbage collection)

• Garbage Collection Algorithm

• Generational Collection Algorithm

• garbage collector

​

If you want to do good work, you must first sharpen your tools

• JVM parameters

• View parameters

• settingsCommon Ways of Parameters

• Practice and Unit Conversion

• Common parameter meaning