search
HomeBackend DevelopmentGolangGolang underlying implementation video

Golang, as a high-performance development language, has been attracting much attention in recent years. Not only because of its concise and efficient syntax and rich standard library, but also because of its fast compilation speed and concurrent execution capabilities.

For Golang fans, understanding some of the underlying implementation principles of Golang can allow them to better master the language and write more efficient code.

So, this article will introduce the underlying implementation of Golang to help readers understand the principles and underlying mechanisms of Golang.

Part One: Basic Concepts of Golang

Before learning the underlying implementation of Golang, we need to understand some basic concepts first.

  1. Goroutine

Goroutine is a very important concept in Golang. It is actually a lightweight thread. Goroutine can be started by a Go statement and runs under the scheduling model of the Go runtime.

The advantages of Goroutine are very obvious: its startup time is very short, generally only taking a few nanoseconds. Moreover, a program can start many Goroutines, and the cost of switching between them is very low.

  1. Channel

Channel is a mechanism for communication between two Goroutines in Golang. Channel can be understood as a pipe, used to transfer data.

In Golang, there are two types of Channel: buffered and unbuffered. A buffered Channel can send data without blocking, and will only block when the Channel buffer is filled; an unbuffered Channel must ensure the matching rules of sending and receiving, otherwise it will always block.

  1. Go statement

Go statement is a special syntax of Golang, used to start a new Goroutine. When executing a Go statement, the program will return immediately and the Goroutine will start executing.

Using Go statements can help us write more concise and efficient programs.

Part 2: Golang’s underlying implementation mechanism

After understanding the above basic concepts, we can delve into the underlying implementation mechanism of Golang.

  1. Golang's scheduling model

Golang has designed a scheduling model called "M:N thread scheduling", which maps M user-level threads to N Executed on a real operating system thread. This scheduling model allows Golang programs to execute multiple Goroutines on multi-core CPUs, thereby achieving high concurrency.

In Golang's scheduling model, M represents the Goroutine itself in the Go program, and N represents the operating system thread when the computer is running.

Each operating system thread is maintained by the Golang runtime, and Goroutine is executed by the operating system thread. Therefore, Golang manages a number of operating system threads internally during runtime, and each Goroutine may execute on any operating system thread.

In addition, the Golang runtime will also handle tasks such as scheduling, garbage collection, and memory management to ensure the high performance, high reliability, and high maintainability of Golang programs.

  1. Golang’s memory allocation

Golang’s memory allocation is managed uniformly by the Golang runtime. Memory allocation in Golang is divided into two ways: stack memory allocation and heap memory allocation.

In Golang, the stack memory of Goroutine is fixed and has been set when it starts. For heap memory, Golang uses pointers for allocation and release.

Golang’s memory allocation method is safer and more efficient than traditional languages ​​such as C. Because Golang's memory management is automated, and the garbage collection mechanism can automatically reclaim memory that is at risk of memory leaks.

  1. Golang’s garbage collection mechanism

Another highlight of Golang in terms of memory management is its efficient garbage collection mechanism. Golang uses a garbage collection mechanism based on the mark-and-sweep algorithm.

In Golang's garbage collection mechanism, the program will trigger garbage collection when the steps reach a certain height. The garbage collector scans all reachable objects in the heap, marking and clearing objects that are no longer used. After this process, all memory will become available again.

Compared with traditional garbage collection algorithms, Golang's garbage collection algorithm is more efficient and flexible. It can perform GC without affecting program performance, and does not need to stop the running of user programs during garbage collection.

Part Three: Application Scenarios of Golang

Through the above analysis of the underlying implementation of Golang, we can see that Golang can be applied to many application scenarios, such as: web applications, distributed systems, Cloud computing, network programming, etc.

Golang’s efficient compilation, fast garbage collection and high-concurrency execution capabilities make it one of the preferred languages ​​for developing modern distributed, high-concurrency, and high-performance programs.

Summary

In this article, we introduced some basic concepts of Golang and Golang’s underlying implementation mechanism, including Golang’s scheduling model, memory allocation and garbage collection mechanism. At the same time, we also emphasized the application scenarios of Golang.

For developers who want to deeply understand the underlying implementation mechanism of Golang, mastering this knowledge is very necessary. By learning the underlying implementation of Golang, we can write Golang programs more efficiently and accurately, bringing better performance and experience to our applications.

The above is the detailed content of Golang underlying implementation video. For more information, please follow other related articles on the PHP Chinese website!

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Go language pack import: What is the difference between underscore and without underscore?Go language pack import: What is the difference between underscore and without underscore?Mar 03, 2025 pm 05:17 PM

This article explains Go's package import mechanisms: named imports (e.g., import "fmt") and blank imports (e.g., import _ "fmt"). Named imports make package contents accessible, while blank imports only execute t

How to implement short-term information transfer between pages in the Beego framework?How to implement short-term information transfer between pages in the Beego framework?Mar 03, 2025 pm 05:22 PM

This article explains Beego's NewFlash() function for inter-page data transfer in web applications. It focuses on using NewFlash() to display temporary messages (success, error, warning) between controllers, leveraging the session mechanism. Limita

How to convert MySQL query result List into a custom structure slice in Go language?How to convert MySQL query result List into a custom structure slice in Go language?Mar 03, 2025 pm 05:18 PM

This article details efficient conversion of MySQL query results into Go struct slices. It emphasizes using database/sql's Scan method for optimal performance, avoiding manual parsing. Best practices for struct field mapping using db tags and robus

How do I write mock objects and stubs for testing in Go?How do I write mock objects and stubs for testing in Go?Mar 10, 2025 pm 05:38 PM

This article demonstrates creating mocks and stubs in Go for unit testing. It emphasizes using interfaces, provides examples of mock implementations, and discusses best practices like keeping mocks focused and using assertion libraries. The articl

How can I define custom type constraints for generics in Go?How can I define custom type constraints for generics in Go?Mar 10, 2025 pm 03:20 PM

This article explores Go's custom type constraints for generics. It details how interfaces define minimum type requirements for generic functions, improving type safety and code reusability. The article also discusses limitations and best practices

How to write files in Go language conveniently?How to write files in Go language conveniently?Mar 03, 2025 pm 05:15 PM

This article details efficient file writing in Go, comparing os.WriteFile (suitable for small files) with os.OpenFile and buffered writes (optimal for large files). It emphasizes robust error handling, using defer, and checking for specific errors.

How do you write unit tests in Go?How do you write unit tests in Go?Mar 21, 2025 pm 06:34 PM

The article discusses writing unit tests in Go, covering best practices, mocking techniques, and tools for efficient test management.

How can I use tracing tools to understand the execution flow of my Go applications?How can I use tracing tools to understand the execution flow of my Go applications?Mar 10, 2025 pm 05:36 PM

This article explores using tracing tools to analyze Go application execution flow. It discusses manual and automatic instrumentation techniques, comparing tools like Jaeger, Zipkin, and OpenTelemetry, and highlighting effective data visualization

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

MantisBT

MantisBT

Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

DVWA

DVWA

Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

SublimeText3 English version

SublimeText3 English version

Recommended: Win version, supports code prompts!

SAP NetWeaver Server Adapter for Eclipse

SAP NetWeaver Server Adapter for Eclipse

Integrate Eclipse with SAP NetWeaver application server.

Dreamweaver Mac version

Dreamweaver Mac version

Visual web development tools