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Description

🚀 gnet is a high-performance, lightweight, non-blocking, event-driven networking framework written in pure Go./ gnet 是一个高性能、轻量级、非阻塞的事件驱动 Go 网络框架。

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gnet

English | 🇨🇳中文

📖 Introduction

gnet
is an event-driven networking framework that is fast and lightweight. It makes direct epoll and kqueue syscalls rather than using the standard Go net package and works in a similar manner as netty and libuv, which makes
gnet
achieve a much higher performance than Go net.

gnet
is not designed to displace the standard Go net package, but to create a networking server framework for Go that performs on par with Redis and Haproxy for networking packets handling.

gnet
sells itself as a high-performance, lightweight, non-blocking, event-driven networking framework written in pure Go which works on transport layer with TCP/UDP protocols and Unix Domain Socket , so it allows developers to implement their own protocols(HTTP, RPC, WebSocket, Redis, etc.) of application layer upon
gnet
for building diversified network applications, for instance, you get an HTTP Server or Web Framework if you implement HTTP protocol upon
gnet
while you have a Redis Server done with the implementation of Redis protocol upon
gnet
and so on.

gnet
derives from the project:
evio
while having a much higher performance and more features.

🚀 Features

  • [x] High-performance event-loop under networking model of multiple threads/goroutines
  • [x] Built-in goroutine pool powered by the library ants
  • [x] Built-in memory pool with bytes powered by the library bytebufferpool
  • [x] Lock-free during the entire runtime
  • [x] Concise and easy-to-use APIs
  • [x] Efficient, reusable and scalable memory buffer: Ring-Buffer
  • [x] Supporting multiple protocols/IPC mechanism:
    TCP
    ,
    UDP
    and
    Unix Domain Socket
  • [x] Supporting multiple load-balancing algorithms:
    Round-Robin
    ,
    Source-Addr-Hash
    and
    Least-Connections
  • [x] Supporting two event-driven mechanisms:
    epoll
    on Linux and
    kqueue
    on FreeBSD/DragonFly/Darwin
  • [x] Supporting asynchronous write operation
  • [x] Flexible ticker event
  • [x] SO_REUSEPORT socket option
  • [x] Built-in multiple codecs to encode/decode network frames into/from TCP stream: LineBasedFrameCodec, DelimiterBasedFrameCodec, FixedLengthFrameCodec and LengthFieldBasedFrameCodec, referencing netty codec, also supporting customized codecs
  • [x] Supporting Windows platform with ~~event-driven mechanism of IOCP~~ Go stdlib: net
  • [ ] Implementation of
    gnet
    Client

📊 Performance

Benchmarks on TechEmpower

# Hardware Environment
CPU: 28 HT Cores Intel(R) Xeon(R) Gold 5120 CPU @ 2.20GHz
Mem: 32GB RAM
OS : Ubuntu 18.04.3 4.15.0-88-generic #88-Ubuntu
Net: Switched 10-gigabit ethernet
Go : go1.14.x linux/amd64

All language

This is the top 50 on the framework ranking of all programming languages consists of a total of 422 frameworks from all over the world where

gnet
is the runner-up.

Golang

This is the full framework ranking of Go and

gnet
tops all the other frameworks, which makes
gnet
the fastest networking framework in Go.

To see the full ranking list, visit TechEmpower Plaintext Benchmark.

Contrasts to the similar networking libraries

On Linux (epoll)

Test Environment

# Machine information
        OS : Ubuntu 20.04/x86_64
       CPU : 8 CPU cores, AMD EPYC 7K62 48-Core Processor
    Memory : 16.0 GiB

Go version and settings

Go Version : go1.16.5 linux/amd64 GOMAXPROCS : 8

Benchmark parameters

TCP connections : 500/1000/5000/10000 Packet size : 512/1024/2048/4096/8192/16384/32768/65536 bytes Test duration : 15s

Echo benchmark

On MacOS (kqueue)

Test Environment

# Machine information
        OS : MacOS Big Sur/x86_64
       CPU : 6 CPU cores, Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
    Memory : 16.0 GiB

Go version and settings

Go Version : go1.16.5 darwin/amd64 GOMAXPROCS : 12

Benchmark parameters

TCP connections : 300/400/500/600/700 Packet size : 512/1024/2048/4096/8192 bytes Test duration : 15s

Echo benchmark

🏛 Website

Please visit the official website for more details about architecture, usage and other information of

gnet
.

⚠️ License

Source code of

gnet
should be distributed under the Apache-2.0 license.

👏 Contributors

Please read the Contributing Guidelines before opening a PR and thank you to all the developers who already made contributions to

gnet
!

⚓ Relevant Articles

🎡 User cases

The following companies/organizations use

gnet
as the underlying network service in production.

          

If you have

gnet
integrated into projects, feel free to open a pull request refreshing this list of user cases.

💰 Backers

Support us with a monthly donation and help us continue our activities.

💎 Sponsors

Become a bronze sponsor with a monthly donation of $10 and get your logo on our README on Github.

☕️ Buy me a coffee

Please be sure to leave your name, Github account or other social media accounts when you donate by the following means so that I can add it to the list of donors as a token of my appreciation.

        

💴 Patrons

Patrick Othmer Jimmy ChenZhen Mai Yang 王开帅 Unger Alejandro Swaggadan Weng Wei

💵 Paid Support

If you need a tailored version of

gnet
and want the author to help develop it, or bug fix/fast resolution/consultation which takes a lot of effort, you can request paid support here.

🔑 JetBrains OS licenses

gnet
had been being developed with
GoLand
IDE under the free JetBrains Open Source license(s) granted by JetBrains s.r.o., hence I would like to express my thanks here.

🔋 Sponsorship

This project is supported by:

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