Introduction to jvm script

This article mainly introduces "introduction of jvm script". In daily operation, I believe many people have doubts about the introduction of jvm script. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts of "introduction of jvm script"! Next, please follow the editor to study!

1 > Open up a memory space

2 >

Program counter: in every thread

The script in front of each line of jvm script

Operand stack: the transit memory area of temporary operands

The memory address of the object (math) is in the stack and the object is in the heap. There are countless pointers to the heap in the stack.

Static variable put method area

Method area (after metaspace 1.8), using non-Java virtual machine memory, using operating system direct memory.

Class meta-information: composition information of a class, method of a class

Javap-v

Heap introduction

The object store out of the eden:new. Eden.

Default old age: 2 Universe 3

Default young generation: 1 Universe 3

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