/goim

goim

Primary LanguageGoMIT LicenseMIT

goim

goim is a im server writen by golang.

Features

  • Light weight
  • High performance
  • Pure Golang
  • Supports single push, multiple push and broadcasting
  • Supports one key to multiple subscribers (Configurable maximum subscribers count)
  • Supports heartbeats (Application heartbeats, TCP, KeepAlive, HTTP long pulling)
  • Supports authentication (Unauthenticated user can't subscribe)
  • Supports multiple protocols (WebSocket，TCP，HTTP）
  • Scalable architecture (Unlimited dynamic job and logic modules)
  • Asynchronous push notification based on Kafka

Architecture

arch

Protocol:

proto

Document

English

中文

Examples

Websocket: Websocket Client Demo

Android: Android

iOS: iOS

Benchmark

benchmark

Benchmark Server

CPU Memory OS Instance
Intel(R) Xeon(R) CPU E5-2630 v2 @ 2.60GHz DDR3 32GB Debian GNU/Linux 8 1

Benchmark Case

  • Online: 1,000,000
  • Duration: 15min
  • Push Speed: 40/s (broadcast room)
  • Push Message: {"test":1}
  • Received calc mode: 1s per times, total 30 times

Benchmark Resource

  • CPU: 2000%~2300%
  • Memory: 14GB
  • GC Pause: 504ms
  • Network: Incoming(450MBit/s), Outgoing(4.39GBit/s)

Benchmark Result

  • Received: 35,900,000/s

中文

English

LICENSE

goim is is distributed under the terms of the GNU General Public License, version 3.0 GPLv3